SECTION 12D - ENTERTAINMENT SYSTEM

IMPORTANT

Before performing any Service Operation or other procedure described in this Section, refer to Section 00

CAUTIONS AND NOTES for correct workshop practices with regard to safety and/or property damage.

CONTENTS

1. GENERAL INFORMATION

1.1 GENERAL DESCRIPTION

SYSTEM 1 ENTERTAINMENT SYSTEM

SYSTEM 2 ENTERTAINMENT SYSTEM

SYSTEM 3 ENTERTAINMENT SYSTEM

SYSTEM 4 ENTERTAINMENT SYSTEM

SERIAL DATA BUS

SECURITY SYSTEM

AUDIO SYSTEM PARAMETERS

TELEPHONE AUDIO

1.2 POWER ANTENNA OPERATION

1.3 DIVERSITY ANTENNA OPERATION

1.4 HORN BAR STEREO CONTROL OPERATION

1.5 AUDIO SYSTEM CONFIGURATION

2. SERVICE OPERATIONS

2.1 AUDIO SYSTEM HEAD UNIT

REMOVE

REINSTALL

2.2 INSTRUMENT PANEL SPEAKERS — ALL

MODELS

REMOVE

REINSTALL

2.3 FRONT DOOR SPEAKERS — ALL MODELS

REMOVE

REINSTALL

2.4 REAR DOOR SPEAKERS

REMOVE

REINSTALL

2.5 SUBWOOFER SPEAKERS — LEVEL 3

VEHICLES

REMOVE

REINSTALL

2.6 REAR QUARTER SPEAKERS — COUPE

REMOVE

REINSTALL

2.7 SUBWOOFER SPEAKERS — COUPE CV8

REMOVE

REINSTALL

2.8 MANUAL ANTENNA

REMOVE

REINSTALL

2.9 POWER ANTENNA

POWER ANTENNA SWITCHES

POWER ANTENNA ASSEMBLY

REMOVE

REINSTALL

MAST REPLACEMENT

CHECKING ANTENNA MOTOR OPERATION

2.10 DIVERSITY ANTENNA

DIVERSITY ANTENNA — TEST

DIVERSITY ANTENNA MODULE

REMOVE

REINSTALL

2.11 HORN BAR STEREO CONTROLS

REMOVE

REINSTALL

2.12 SUBWOOFER AMPLIFIER

REMOVE

REINSTALL

2.13 AUDIO SYSTEM SECURITY CODE

CODE ENTRY

2.14 AUDIO SYSTEM MASTER RESET

RESET PROCEDURE

3. DIAGNOSTICS

3.1 GENERAL DIAGNOSTIC INFORMATION

PRINCIPLES OF OPERATION

RADIO RECEPTION

FM RECEPTION IN VEHICLES

AM RECEPTION IN VEHICLES

BASIC CHECKS

COMMON RADIO PROBLEMS

STATIC

EXTERNAL INTERFERENCE

INTERNAL INTERFERENCE

DIAGNOSING INTERNAL INTERFERENCE

SPEAKERS

3.2 AUDIO SYSTEM DIAGNOSTICS

DIAGNOSTIC TROUBLE CODES

AUDIO SYSTEM INPUT / OUTPUT SIGNALS

3.3 CONNECTING TECH 2 FOR SYSTEM

DIAGNOSIS

3.4 TECH 2 TEST MODES AND DISPLAYS

MAIN MENU

BODY MENU

3.5 USING TECH 2 TO DIAGNOSE THE AUDIO

SYSTEM

SYSTEM SELECTION MENU

AUDIO SYSTEM SELECTION

AUDIO SYSTEM IDENTIFICATION

BODY MENU

3.6 NORMAL MODE

F0: NORMAL MODE

3.7 DIAGNOSTIC TROUBLE CODES

READ CURRENT DTC INFORMATION

3.8 DATA DISPLAY

F0: DATA LIST

F1: SYSTEM IDENTIFICATION

3.9 SNAPSHOT

3.10 MISCELLANEOUS TESTS

SPEED DEPENDENT VOLUME

PRIORITY KEY SELECTION

ILLUMINATION

ANTENNA SELECTION

ANTENNA (UP / DOWN)

SECURITY LED

DISPLAY

POWER (ON / OFF)

RADIO BAND

PRESET MEMORY

AUDIO

CD FUNCTION

EJECT CD

AUDIO SOURCE

Techline

3.11 PROGRAM

F0: PROGRAM CODE INDEX

F1: PROGRAM ANTENNA

3.12 AUDIO SYSTEM DIAGNOSTIC PROCEDURES

INTRODUCTION

DIAGNOSTIC CIRCUIT CHECK

DIAGNOSING FAULTS NOT COVERED BY

DIAGNOSTIC TROUBLE CODES

POWER ON / OFF

NO SOUND OR DISTORTED SOUND

AUDIO UNIT DISPLAY

RADIO ILLUMINATION

HANDS-FREE TELEPHONE INPUT

ELECTRIC ANTENNA — FULL UP / DOWN

ELECTRIC ANTENNA — HEIGHT

ADJUSTABLE

SINGLE CD PLAYER

CD CHANGER

RADIO RECEPTION

SUBWOOFER AMPLIFIER

DTC 10 — FASCIA BUTTON JAMMED

DTC 11 — STEERING WHEEL REMOTE

BUTTON JAMMED

DTC 21 — CD MECHANISM ERROR (CD

CHANGER MODELS ONLY)

DTC 22 — CD PLAY ERROR (CD CHANGER

MODELS ONLY)

DTC 24 — CD LOADING ERROR (SINGLE

CD MODELS ONLY)

DTC 25 — CD DEFECT (SINGLE CD

MODELS ONLY)

DTC 26 — CD GENERAL ERROR (SINGLE

CD MODELS ONLY)

DTC 30 — INTERNAL BUS FAILURE

DTC 33 — SINGLE COMMUNICATION BUS

FAILURE

DTC 34 — MULTI COMMUNICATION BUS

FAILURE

DTC 35 — FASCIA COMMUNICATION BUS

FAILURE

DTC 40 — NO BCM SERIAL DATA

DIVERSITY ANTENNA FAULT DIAGNOSIS

DIVERSITY ANTENNA SYSTEM TEST

PROCEDURE

4. SPECIFICATIONS

5. TORQUE WRENCH SPECIFICATIONS

6. SPECIAL TOOLS

1. GENERAL INFORMATION

The Entertainment System information is for MY2003 VY and V2 Series vehicles.

There are four levels of entertainment system, depending upon the vehicle model and / or options selected.

ENTERTAINMENT SYSTEM VEHICLE

System 1 System 2 System 3 System 4

Level 1

Utility Standard — Optional —

Executive Standard — Optional —

Acclaim — Standard Optional —

Commodore S Standard — Optional —

Commodore SS — — Standard —

CV6 Coupe Standard — Optional —

Lumina LS Standard — Optional —

S Coupe Standard — Optional —

Lumina SS — — Standard —

Level 2

Berlina — — Standard —

Lumina LTZ — — Standard —

Level 3

Calais — — — Standard

CV8 Coupe — — — Standard

SS Coupe — — — Standard

HSV — — — Standard

Omega CD — — — Standard

1.1 GENERAL DESCRIPTION

The MY2003 VY and V2 Series vehicles are fitted with a high performance Blaupunkt Entertainment System that

features an AM/FM stereo radio/CD player combination. Systems 1 and 2 include a single CD player, whereas

Systems 3 and 4 include a built-in six CD Changer. The entertainment system’s Audio Head Unit (AHU) is

equipped with a unique four-digit security code to protect against theft. A red LED incorporated in the fascia of the

AHU flashes when the security system is armed.

All models, except the Base Model Utility, are fitted with horn bar mounted remote switches for the operation of the

entertainment system. Control of the audio system functions can be accomplished without the need for the driver’s

hands being removed from the steering wheel. Refer to 1.4 HORN BAR STEREO CONTROL OPER AT ION in this

Section. The instrument cluster Multi-function Display (MFD) can provide an eye level screen that indicates the

function selected at the horn bar switches.

The radio in all models allows 6 AM / 12 FM stations to be preset and is prepared to enable the connection of a

hands-free mobile telephone kit. A real-time clock, incorporated in the radio, remains on display even when the

ignition is turned off.

Where fitted, the height adjustable power antenna is controlled by a switch on the radio fascia, in conjunction with

the Body Control Module (BCM). Refer to Section 12J, BODY CONTROL MODULE.

The features applicable to these audio systems will vary with the level of vehicle to which they are fitted.

Level 3 vehicles fitted with the System 4 Entertainment System feature unique 150 mm diameter twin-cone

speakers mounted in the front door trim side pockets. A 150 mm coaxial speaker is mounted in each of the rear

door trim side pockets and a pair of subwoofer speaker and bracket assemblies are mounted on the top of the rear

parcel shelf. The subwoofer speakers are powered by an additional amplifier, which is located on the left-hand side

of the rear compartment. The subwoofer amplifier has a plastic screw to allow gain adjustment for more or less

presence if a customer complains (the centre detent position is the factory setting equivalent to VX Series).

All vehicles are fitted with tweeters mounted in the instrument panel.

The Priority Key feature utilises two personal identity memories, which individually memorise the following settings

for different ignition keys:

• Last used volume level

• Last used mode

• FM1– radio memory presets

• FM2 – radio memory presets

• AM – radio memory presets

• Bass control settings

• Treble control settings

• Speaker balance setting

• Speaker fader setting

• Time / Frequency priority settings

• Local On / Off setting

The radio’s priority settings will follow the priority key number broadcast by the BCM on the vehicle’s serial

communication data bus.

A diversity antenna is part of the entertainment system in Level 3 vehicles. The diversity antenna system consists

of a diversity antenna, which is an integral part of the rear window glass, and a diversity antenna module. Refer to

1.3 DIVERSITY ANTENNA OPERATION in this Section.

Operating instructions for the audio system accompany the Owner’s Handbook in the vehicle’s instrument panel

compartment.

SYSTEM 1 ENTERTAINMENT SYSTEM

The following features are included in a System 1 audio entertainment system:

• AM / FM 80 watt tuner / single CD

• Two tweeters mounted in the instrument panel

• Four door mounted speakers (except Base Model Utility which has two door mounted speakers)

• LCD display

• Speed sensitive radio volume control

• Power antenna (except Base Model Utility which has a manual antenna)

• Dynamic Distortion Limiter

The CV6 Coupe vehicles are also equipped with a System 1 audio entertainment system, with the following

differences:

• Two door mounted speakers

• Two rear side panel mounted speakers

Figure 12D-1 shows the System 1 radio / CD player fitted to Level 1 vehicles.

Figure 12D-1

Legend

1 Clock adjustment / Time display on/off

MUTE

2 Automatic station memory storage

Local / distance search sensitivity

3 FM1 / FM2 / AM source button

4 CD source button

CD pause button

5 Security indicator light

6 Information display

7 CD eject button

8 Disc load / remove slot

9 Radio On / Off

10 Radio Mode: Station seek

CD Mode: Track up / down

11 Radio Mode: Manual frequency select

12 CD Mode: Track cue / review

13 Volume control

Push: Bass / Treble / Fader / Balance

14 Radio Mode: Memory preset station 6

15 Radio Mode: Memory preset station 5

16 Radio Mode: Memory preset station 4

17 CD Mode: Track Random

Radio Mode: Memory preset station 3

18 CD Mode: Track Repeat

Radio Mode: Memory preset station 2

19 CD Mode: Track Scan

Radio Mode: Memory preset station 1

The following radio / CD player is fitted to SS models, and can be fitted to Level 1 vehicles as an option.

Figure 12D-2

Legend

1 Clock adjustment / Time display on/off

Equalizer On / Off setting

2 Automatic station memory storage

Local / distance search sensitivity

3 FM1 / FM2 / AM source button

4 CD source button

CD pause button

5 Security indicator light

CD Mode: Load, remove, wait indicator

6 CD load button

7 Information display

8 CD eject button

9 Disc load / remove slot

10 Radio On / Off

11 Radio Mode: Station seek

CD Mode: Track up / down

12 Radio Mode: Manual frequency select

CD Mode: Disc select

13 CD Mode: Track cue / review

14 Volume control

Push: Bass / Treble / Fader / Balance

15 CD Mode: CD Random

CD Mode: Disc 6 select

Radio Mode: Memory preset station 6

16 CD Mode: CD Repeat

CD Mode: Disc 5 select

Radio Mode: Memory preset station 5

17 CD Mode: CD Scan

CD Mode: Disc 4 select

Radio Mode: Memory preset station 4

18 CD Mode: Track Random

CD Mode: Disc 3 select

Radio Mode: Memory preset station 3

19 CD Mode: Track Repeat

CD Mode: Disc 2 select

Radio Mode: Memory preset station 2

20 CD Mode: Track Scan

CD Mode: Disc 1 select

Radio Mode: Memory preset station 1

SYSTEM 2 ENTERTAINMENT SYSTEM

The following features are included in a System 2 audio entertainment system:

• AM / FM 80 watt tuner / single CD

• Two tweeters mounted in the instrument panel

• Four door mounted speakers

• LCD display

• Speed sensitive radio volume control

• Full up / down power antenna

• Preset equaliser

• Dynamic Distortion Limiter

Figure 12D-3 shows the System 2 radio / CD player fitted to Level 1 (Acclaim) vehicles with full up / down power

antenna.

Figure 12D-3

Legend

1 Clock adjustment / Time display on/off

Equalizer On / Off setting

2 Automatic station memory storage

Local / distance search sensitivity

3 FM1 / FM2 / AM source button

4 CD source button

CD pause button

5 Security indicator light

6 Information display

7 CD eject button

8 Disc load / remove slot

9 Radio On / Off

10 Radio Mode: Station seek

CD Mode: Track up / down

11 Radio Mode: Manual frequency select

12 CD Mode: Track cue / review

13 Volume control

Push: Bass / Treble / Fader / Balance

14 Radio Mode: Memory preset station 6

15 Radio Mode: Memory preset station 5

16 Radio Mode: Memory preset station 4

17 CD Mode: Track Random

Radio Mode: Memory preset station 3

18 CD Mode: Track Repeat

Radio Mode: Memory preset station 2

19 CD Mode: Track Scan

Radio Mode: Memory preset station 1

SYSTEM 3 ENTERTAINMENT SYSTEM

The following features are included in a System 3 audio entertainment system:

• AM / FM 80 watt tuner

• Six disc CD changer in head unit

• Two tweeters mounted in the instrument panel

• Four door mounted speakers

• LCD display

• Speed sensitive radio volume control

• Preset equaliser

• Berlina and Lumina LTZ models equipped with height adjustable power antenna

• Commodore SS models equipped with full up / down power antenna

• The option for Executive, Acclaim, Commodore S vehicles and the Lumina Sedan, Wagon and Lumina SS

includes a full up / down power antenna

Figure 12D-4 shows the System 3 radio / CD player fitted to Level 2 vehicles with height adjustable power antenna

and ‘SS’ pack vehicles (optional on Level 1 vehicles) with a full up / down power antenna.

Figure 12D-4

Legend

1 Clock adjustment / Time display on/off

Equalizer On / Off setting

2 Automatic station memory storage

Local / distance search sensitivity

3 FM1 / FM2 / AM source button

4 CD source button

CD pause button

5 Security indicator light|

CD Mode: Load, remove, wait indicator

6 CD load button

7 Information display

8 CD eject button

9 Disc load / remove slot

10 Radio On / Off

11 Radio Mode: Station seek

CD Mode: Track up / down

CD Mode: Push and hold: Track cue / review (Systems

with adjustable height electric antenna)

12 Radio Mode: Manual frequency select

CD Mode: Disc select

13 Electric antenna height adjustment (Systems with

adjustable height electric antenna)

CD Mode: Track cue / review (Systems without

adjustable height electric antenna)

14 Volume control

Push: Bass / Treble / Fader / Balance

15 CD Mode: CD Random

CD Mode: Disc 6 select

Radio Mode: Memory preset station 6

16 CD Mode: CD Repeat

CD Mode: Disc 5 select

Radio Mode: Memory preset station 5

17 CD Mode: CD Scan

CD Mode: Disc 4 select

Radio Mode: Memory preset station 4

18 CD Mode: Track Random

CD Mode: Disc 3 select

Radio Mode: Memory preset station 3

19 CD Mode: Track Repeat

CD Mode: Disc 2 select

Radio Mode: Memory preset station 2

20 CD Mode: Track Scan

CD Mode: Disc 1 select

Radio Mode: Memory preset station 1

SYSTEM 4 ENTERTAINMENT SYSTEM

The following features are included in a System 4 audio entertainment system:

• AM / FM 120 watt tuner • Dot Matrix LCD display

• Six disc CD changer in head unit • Diversity Antenna (not fitted on some HSV models)

• Priority key operation • Speed sensitive radio volume control

• Two tweeters mounted in the instrument panel • Height adjustable power antenna

• Four door mounted speakers • Preset equaliser

• Two rear mounted subwoofer speakers • Dynamic Distortion Limiter

• Subwoofer amplifier

CV8 Coupe vehicles are also equipped with a System 4 audio entertainment system, with the following differences:

• Two door mounted speakers

• Two rear side panel mounted speakers

Figure 12D-5 shows the System 4 260 Watt radio / CD changer fitted to Level 3 vehicles with height adjustable

power antenna.

Figure 12D-5

Legend

1 Clock adjustment / Time display on/off

Equalizer On / Off setting

2 Automatic station memory storage

Local / distance search sensitivity

3 FM1 / FM2 / AM source button

4 CD source button

CD pause button

5 Security indicator light

CD Mode: Load, remove, wait indicator

6 CD load button

7 Information display

8 CD eject button

9 Disc load / remove slot

10 Radio On / Off

11 Radio Mode: Station seek

CD Mode: Track up / down

CD Mode: Push and hold: Track cue / review

12 Radio Mode: Manual frequency select

CD Mode: Disc select

13 Electric antenna height adjustment

14 Volume control

Push: Bass / Treble / Fader / Balance / Loudness

adjustment

15 CD Mode: CD Random

CD Mode: Disc 6 select

Radio Mode: Memory preset station 6

16 CD Mode: CD Repeat

CD Mode: Disc 5 select

Radio Mode: Memory preset station 5

17 CD Mode: CD Scan

CD Mode: Disc 4 select

Radio Mode: Memory preset station 4

18 CD Mode: Track Random

CD Mode: Disc 3 select

Radio Mode: Memory preset station 3

19 CD Mode: Track Repeat

CD Mode: Disc 2 select

Radio Mode: Memory preset station 2

20 CD Mode: Track Scan

CD Mode: Disc 1 select

Radio Mode: Memory preset station 1

SERIAL DATA BUS

The audio system is connected to the main vehicle serial data bus and communicates with other modules on the

bus. Some audio system settings can be displayed on the Multi-function Display (MFD) located in the instrument

cluster, and this information is transmitted via the serial data bus. Additionally, the instrument cluster Customisation

Mode allows the adjustment of some audio system settings from the instrument cluster.

When the audio system is switched off at the front panel switch, power is still applied to the unit to maintain serial

data bus communications.

SECURITY SYSTEM

The audio system is protected by a security system, which flashes a red LED on the front fascia when activated. In

addition, the audio system is protected against theft by a four-digit security code that is unique to each unit.

The audio system communicates with other modules such as the Body Control Module (BCM) and the instrument

cluster on the serial data bus. If the audio system head unit is removed for any reason, upon installation the audio

system interrogates the other modules to determine if the same modules are fitted and therefore the system or

vehicle is the same. If the audio system recognises the other modules the audio system will operate. However, if

the audio system detects a mismatch in the serial numbers of some of the other modules, the audio system will

remain in secure mode indefinitely. Entry of the correct security code via the head unit preset keys will enable

operation and authorise a new link up of the modules on the serial data bus.

The Instrument cluster monitors communication over the serial data bus. If a different audio system is fitted to the

vehicle, and this audio system is not connected to the bus, the Data Trouble Code associated with the audio

system may be permanently set.

AUDIO SYSTEM PARAMETERS

Battery Disconnection

Disconnecting the vehicle battery for service operations does not impact on the driver selectable audio system

parameters.

Master Reset

The audio system parameters can be reset to the factory default settings from either the instrument cluster in

Customisation Mode or from the audio unit front fascia. For the reset procedure, refer to

2.14 AUDIO SYSTEM MASTER RESET in this Section. The factory default settings are as follows.

PARAMETER RANGE DEFAULT

Bass –6 to +6 STD (0)

Treble –6 to +6 STD (0)

Balance –6 to +6 STD (0)

Fader –6 to +6 STD (0)

Loudness On / Off On

Equaliser On / Off Off

CD Random On / Off Off

CD Repeat On / Off Off

Local / Distance Local / Distance Distance

Display Mode Clock Adjust / Time Time

Audio Distortion Limiter On / Off On

Confirmation Beeps On / Off On

Speed Dependent

Volume

0 to 5 2

TELEPHONE AUDIO

The audio system head unit provides two inputs for telephone audio, which allows the telephone audio to use the

audio system speakers. A mute signal from the telephone mutes the normal audio or pauses the CD when

required. The audio system display shows VOICE IN when the telephone is in use. When the call ends, the

audio system returns to the previous playing mode and audio settings. For more details, refer to

Section 12G CEL LULAR PHONE.

1.2 POWER ANTENNA OPERATION

There are two power antenna options available. These are:

• Full up / down antenna, or

• Height adjustable antenna.

For vehicles with the full up / down power antenna option, the radio / CD player controls the operation of the

antenna (refer to Figure 12D-6). Battery voltage is applied at all times to the antenna motor via circuit 1040, which

is protected by the RADIO fuse F23. Antenna operation is controlled from the audio system by the Radio On signal,

circuit 314, which controls the internal antenna control relay via circuit 314. When the radio is switched on, the

antenna mast is raised to its full height, and retracts when the radio is switched off or a CD is played.

Figure 12D-6

For vehicles with the height adjustable power antenna option, the BCM and the height adjustment switch located

on the radio / CD player control panel, adjacent to the liquid crystal display, control the operation of the power

antenna (refer to Figure 12D-7). The adjustable height antenna is under direct control of the BCM. The audio

system Radio On signal on circuit 314 is applied to the BCM on terminal X3-10 and, together with information on

the serial data bus, instructs the BCM to raise or lower the antenna. Antenna motor power is supplied via the BCM

(terminal X4-23) and is applied to the antenna via circuit 160. Antenna direction control is also controlled by the

BCM (terminal X4-7) and is applied to the internal antenna control relay via circuit 161. The HAZARD LAMPS /

ANTENNA DRIVE fuse F7 protects the antenna motor power circuit. For further information refer to

Section 12J, BODY CONTROL MODULE.

Figure 12D-7

1.3 DIVERSITY ANTENNA OPERATION

To aid in the consistent reception of FM radio signals, the Level 3 models (System 4 Entertainment System) are

equipped with a diversity antenna system (except some HSV models).

The diversity antenna system consists of a diversity antenna W4, a diversity antenna amplifier N3 and coaxial

leads. Refer to Figure 12D-7 for the diversity antenna interconnection details.

The diversity antenna is an integral part of the rear window glass. The thin conductors that form the diversity

antenna are laid on the inside of the glass in the same manner as the rear window demister elements. A terminal is

located on the passenger side of the rear window allowing connection of the diversity antenna to the diversity

antenna module lead.

The diversity antenna module amplifies the small signals from the diversity antenna to signals of similar strength as

the signals from the main (mast) antenna. It then transmits the amplified signal to the radio’s diversity antenna

input.

The diversity antenna module is located beneath the trim on the passenger side of the rear parcel shelf. The

module is connected to the diversity antenna via one of two coaxial leads, the other lead, located under the

passenger side rocker panel cover, connects the module to the radio’s diversity antenna input extension lead.

Another single wire lead is used to supply the diversity antenna module with 12 V for its operation and the module

is grounded through its case to the vehicle body. To prevent interference, it is very important that the module and

coaxial leads are grounded securely.

The radio receives signals from both the diversity antenna system and the conventional fender mounted mast type

antenna. Internal circuitry within the radio decides which antenna is located in the cleaner signal area. It then uses

that antenna for its radio reception.

When the vehicle is in motion the radio constantly monitors the inputs from both antennas and swaps between

them in order to maintain the best possible radio reception.

NOTE: The diversity antenna system does not work in weak signal areas. It is designed for improving performance

under multi-path conditions. Refer to 3.1 GENERAL DIAGNOSTIC INFORMATION in this Section for more

information on multi-pathing.

1.4 HORN BAR STEREO CONTROL OPERATION

There are two major components of the horn bar

stereo control system. These components are as

follows:

1. Left-hand switch assembly (1)

Located to the left-hand side of the horn bar,

the left-hand switch assembly has three

momentary contact switches that are used to

control the mode of operation and switching

between preset stations.

The MODE button allows selection between

the Radio Mode of operation and the CD

Mode.

If Radio Mode is selected, the NEXT UP button

selects the next preset station in the frequency

band, while the NEXT DOWN button selects

the previous preset radio station.

If CD Mode is selected, the NEXT UP button

selects the next track on the CD, while the

NEXT DOWN button selects the previous

track. For CD Changer models, push and hold

changes the disc.

2. Right-hand switch assembly (2)

Located to the right-hand side of the horn bar,

the right-hand switch assembly has three

momentary contact switches that are used to

control the MUTE function as well as the

VOLUME UP and VOLUME DOWN.

Each control switch has a unique resistance value.

When a button is pressed on the horn bar control,

the radio decides the function required by

measuring the resistance of the contact pressed.

Wiring (3) from the right-hand switch is connected

to the left-hand switch. The left-hand switch is

connected to the audio system head unit by a

wiring loom (4). Refer to Figure 12D-9 for wiring

details.

Figure 12D-8

A Multi-function Display (MFD) in the instrument panel can provide the driver with an almost line-of-sight view of

the MFD for ease of operation of the audio system from the horn bar buttons.

Normal display on the MFD during vehicle operation displays the normal trip computer functions, for example the

odometer (in the centre of the MFD screen) and the gear selector position (displayed at the bottom of the MFD

screen at all times).

When the radio or a CD source is selected, the radio band and frequency or the CD symbol replaces the trip

computer display for 2 seconds. The display then reverts to the trip computer display with the radio band and

frequency or CD and track indicator changing to a secondary small icon located in the warning icon location on the

left-hand side of the MFD.

IMPORTANT: If a warning is activated, the warning will override the CD and track indicators.

The display of audio system information on the MFD can be turned On or Off from the MFD. The default setting is

On. Refer to Sect ion 12C, 1.8 CU ST OMISATION M ODE for further details.

Techline

Figure 12D-9

1.5 AUDIO SYSTEM CONFIGURATION

The following table details the audio system parameters that can be configured with TECH 2. This is achieved by

selecting the Code Index number for the appropriate vehicle model and audio system installed. Refer to

3.11 PROGRAM — F0: PROGRAM CODE INDEX in this Section.

PARAMETER SETTING

Tuner Frequency Range AUST, GCC (Gulf Countries), GMB (Brazil), EURO (Europe), GMTH (Thailand)

Clock Format Display 12 Hour / 24 Hour

Speed Dependent Volume

Curve

0, 1, 2, 3, 4, 5

0 = Off, 5 = Maximum Effect, 2 = Standard Setting

Maximum Switch On Volume 0 to 63

0 is an invalid setting, 63 = Feature Turned Off

Confirmation Beeps Radio and CD Changer Confirmation Beeps On or Off

LHD or RHD Left-hand Drive or Right-hand Drive Vehicle

Two or Four Speakers Two Speakers = Front Speakers Only

Four Speakers = Front and Rear Speakers

Single or Dual Antenna Single = Main Antenna Only, Dual = Diversity Antenna (if fitted)

2. SERVICE OPERATIONS

IMPORTANT

All fasteners are important attaching parts as they affect the performance of vital components and / or

could result in major repair expense. Where specified in this section, fasteners MUST be replaced with

parts of the same part number or a GM approved equivalent. Do not use fasteners of an inferior quality

or substitute design.

Torque values must be used as specified during reassembly to ensure proper retention of all

components.

Through out this section, fastener torque w rench specifications ma y be acc ompanied w ith the follow ing

identification marks:

+ Fasteners must be replaced after loosening.

& Vehicle must be at curb height before final tightening.

6 Fasteners either have micro encapsulated sealant applied or incorporate a mechanical thread lock

and should only be re-used once. If in doubt, replacement is recommended.

If one of these identification marks is present alongside a fastener torque wrench specification, the

recommendation regarding that fastener must be adhered to.

2.1 AUDIO SYSTEM HEAD UNIT

LT Section No. 09–440

REMOVE

IMPORTANT: It is recommended that the audio system head unit does not contain a CD when being removed.

Under some circumstances, a CD may become dislodged it the unit is treated roughly during removal.

1. Ensure that the audio system is turned off.

2. Using the special service tools SPX K/M–

6067 (1), insert the tools into the access holes

and push the service tool in to engage the

barbs of the retaining spring clips.

3. Apply outward pressure to the service tools to

release the spring clips then pull the audio unit

out of the cradle.

4. Remove the service tools.

Figure 12D-10

REINSTALL

IMPORTANT: It is recommended that the audio system head unit does not contain a CD when being installed.

Under some circumstances, a CD may become dislodged if the unit is treated roughly during installation.

Installation is the reverse of the removal procedure noting the following points:

1. Service tools are not required to install the audio unit.

2. Slide the audio unit into the cradle then, using finger pressure over the removal tool holes, push the unit in until

the spring clips engage.

NOTE: Do not apply pressure to the buttons or the display as damage may result.

3. If a new audio system head unit has been installed, enter the new security code. Refer to

2.13 AUDIO SYSTEM SECURITY CODE in this Section.

4. Store the new security code into BCM memory using TECH 2. Refer to Section 12J, 3.10 SECURITY for

further details.

5. Check the audio system for correct operation. Load any customer CDs that were originally in the audio system.

2.2 INSTRUMENT PANEL SPEAKERS — ALL MODELS

LT Section No. 09–500

REMOVE

1. Ensure that the audio system is turned off.

2. Remove the three screws (1) securing the

right-hand side instrument panel outer cover

(2) and remove the cover.

3. Remove the cover by rotating outward to

disengage the retaining clip (3) and the

ventilation ducts.

Figure 12D-11

4. Remove the three screws (1) securing the left-

hand side instrument panel outer cover (2) and

remove the cover.

Figure 12D-12

5. Remove the retaining screw (1) from the right-

hand side windshield defroster grille (2) and

remove the grille.

6. Carefully remove the grille by unclipping (3),

four places, at an angle equal to the

windshield.

7. Repeat for the left-hand defroster grille.

NOTE: On all vehicles, care must be taken to avoid

damage to the solar sensor (4), if fitted.

Figure 12D-13

8. Disconnect the harness connectors from the

speaker (2) on the left-hand and right-hand

sides of the instrument panel. Remove the

screw (1) securing each speaker to the

instrument panel (3) then gently pull the

speakers towards the rear of the vehicle.

Figure 12D-14

REINSTALL

Installation is the reverse of the removal

procedure. Tighten the retaining screws to the

correct torque specification.

INSTRUMENT PANEL SPEAKER

RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

DEFROSTER GRILLE

RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

INSTRUMENT PANEL OUTER

COVER RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

2.3 FRONT DOOR SPEAKERS — ALL MODELS

LT Section No. 09–500

REMOVE

1. Ensure that the audio system is turned off.

2. Remove the door trim from the front door. Refer to Section 1A5, 2.6 FRONT DOOR TRIM PANEL

ASSEMBLY.

3. Remove the speaker assembly-to-speaker box

retaining screws (3).

4. Remove the speaker (2) from the speaker

box (3).

Release the wiring harness (4) from the tab on

the rear of the speaker box.

Disconnect the wiring harness from the

speaker connector and remove the speaker.

Figure 12D-15

REINSTALL

Installation is the reverse of the removal procedure,

noting the following:

1. Ensure that the electrical connector (4) is

properly attached to the speaker.

2. Before installing the speaker, visually inspect

the cavity of the speaker mounting box (1) for

protrusions that will touch the underside of the

speaker cone on installation, ie cable ties etc.

Secure the wiring harness to the tab on the

rear of the speaker box.

3. Carefully install the speaker retaining

screws (3) ensuring that the speaker frame is

not distorted when the screws are tightened.

NOTE: Angled insertion of the speaker retaining

screws can lead to speaker distortion. Make sure

that the screws are installed square to the speaker

frame.

FRONT DOOR SPEAKER

RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

NOTE: There are specific front speaker assemblies

for the various vehicle models. Figure 12D-15

illustrates the underside view of a speaker showing

the location of the identification details, eg Part

Number (1) and the speaker impedance (2).

Check that the part numbers and resistance values

are correct, as incorrect speaker fitment can affect

system operation, resulting in unnecessary

complaints.

Check speaker operation once installation has

been completed.

Figure 12D-16

2.4 REAR DOOR SPEAKERS

LT Section No. 09–500

REMOVE

1. Ensure that the audio system is turned off.

2. Remove the door trim from the rear door, refer

to Section 1A5, 3.6 REAR DOOR TRIM

PANEL ASSEMBLY.

3. Remove speaker assembly to speaker box

retaining screws (3).

4. Remove the speaker (2) from speaker box (1).

Release the wiring harness (4) from the tab on

the rear of the speaker box.

Disconnect the wiring harness from the

speaker connector and remove the speaker.

REINSTALL

Installation is the reverse of the removal procedure,

noting the following points:

NOTE: There are specific rear speaker assemblies

for the various vehicle models. Refer to

Figure 12D-15 for identification details. Check that

the part numbers and resistance values are

correct, as incorrect speaker fitment can affect

system operation.

1. Ensure that the electrical connector (4) is

properly attached to the speaker.

2. Before installing the speaker (2), visually

inspect the cavity of the speaker mounting

box (1) for protrusions that will touch the

underside of the speaker cone on installation,

ie. cable ties etc. Secure the wiring harness to

the tab on the rear of the speaker box.

3. Carefully install the speaker retaining

screws (3) ensuring that the speaker frame is

not distorted when the screws are tightened.

NOTE: Angled insertion of speaker retaining

screws can lead to speaker distortion. Make sure

screws are installed square to speaker frame and

are tightened to the correct torque specification.

REAR DOOR SPEAKER

RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

Check the speaker operation once installation has

been completed.

Figure 12D-17

2.5 SUBWOOFER SPEAKERS — LEVEL 3 VEHICLES

LT Section No. 09–500

REMOVE

1. Ensure that the audio system is turned off.

2. Remove rear parcel shelf assembly, refer to

Section 1A8, 2.9 REAR WINDOW TRIM

PANEL ASSEMBLY.

2. From the rear compartment, carefully remove

the connections (3) for the wiring harness (5)

from the left-hand and right-hand side

subwoofers.

3. From within passenger compartment, remove

the four screws (1) securing each

subwoofer (2) and carefully lift the subwoofer

from the mounting bracket (4).

REINSTALL

Installation is the reverse of the removal procedure,

noting the following:

1. Ensure that the electrical connectors are

properly attached to the speakers.

2. Before installing the speakers, visually inspect

the speaker mounting box cavities for

protrusions that will touch the underside of the

speaker cone on installation, ie. cable ties etc.

3. Carefully install the speaker retaining screws,

ensuring that the speaker frames are not

distorted when the screws are tightened.

Ensure that the wiring harness (5) is not

jammed.

4. Install rear parcel shelf assembly, refer to

Section 1A8, 2.9 REAR WINDOW TRIM

PANEL ASEMBLY.

NOTE: Angled insertion of speaker retaining

screws can lead to speaker distortion. Make sure

screws are installed square to speaker frame.

SUBWOOFER SPEAKER

RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

Figure 12D-18

2.6 REAR QUARTER SPEAKERS — COUPE

LT Section No. 09–500

REMOVE

1. Ensure that the audio system is turned off.

2. Remove the rear quarter trim panel. Refer to

Section 1A8, 4.2 QUARTER TRIM PANEL

ASSEMBLY.

3. Remove the three screws (1) securing the

speaker (2) to the mounting bracket (3).

4. Pull the speaker away from the mounting

bracket to gain access, and disconnect the

body wiring harness connector (4).

5. Remove the rear quarter speaker.

REINSTALL

Installation is the reverse of the removal procedure,

noting the following:

1. Tighten the retaining screws to the correct

torque specification.

2. Check operation prior to installing the rear

quarter trim.

REAR QUARTER SPEAKER

RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

Figure 12D-19

2.7 SUBWOOFER SP EAKERS — COUPE CV8

LT Section No. 09–500

REMOVE

1. Ensure that the audio system is turned off.

2. Open the rear compartment lid and disconnect

the body wiring harness connector (1) from the

speaker (2).

3. Remove rear parcel shelf assembly, refer to

Section 1A8, 2.9 REAR WINDOW TRIM

PANEL ASSEMBLY.

Figure 12D-20

4. Remove the four screws (1) securing the

speaker mounting box (2) to the rear parcel

shelf (3).

5. Remove the mounting box and speaker.

6. Remove the four screws (5) securing the

speaker to the mounting box and carefully

separate.

REINSTALL

Installation is the reverse of the removal procedure,

noting the following:

1. Tighten all screws to the correct torque

specification.

SPEAKER MOUNTING BOX TO REAR

PARCEL SHELF RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

REAR PARCEL SHELF SPEAKER

TO MOUNTING BOX RETAINING

SCREW TORQUE SPECIFICATION 1.5 – 3.0 Nm

Figure 12D-21

2.8 MANUAL ANTENNA

LT Section No. 09–400

REMOVE

1. Ensure that the audio system is turned off.

2. Remove the hinge pillar trim assembly. Refer

to Section 1A8, 2.8 HINGE PILLAR TRIM

ASSEMBLY.

3. Leaving the wiring harnesses connected to the

exposed module, manoeuvre the module from

the plastic mounting bracket.

4. Remove the plastic mounting bracket.

5. Disconnect the antenna lead (1) from the

connecting socket of the antenna extension

lead.

6. Remove the fender inner liner. Refer to

Section 1A1, 3.1 FRONT WHEELHOUSE

LINER.

Figure 12D-22

7. Push the antenna mast down to the fully

retracted position.

8. Remove the screw (1) connecting the ground

braid to the inner fender ground terminal.

9. While supporting the antenna, remove the M8

bolt (5) attaching the antenna bracket (4) to the

inner fender panel.

10. Remove the antenna lead grommet (2) from

the inner fender panel and pull the lead out

from the passenger compartment.

11. Withdraw the antenna downward through the

bezel and remove, complete with the lead and

grommet.

12. If necessary, loosen the antenna bracket

bolt (3) and remove the bracket from the

antenna.

Figure 12D-23

REINSTALL

Installation of the manual antenna is the reverse of the removal procedure, noting the following points:

1. If removed, leave the antenna bracket bolt loose.

2. Ensure that the antenna and the ground leads are routed correctly and are securely connected.

3. With the antenna pushed up against the stop in the bezel, tighten the bolt attaching the antenna bracket to the

inner fender panel to the correct torque specification.

ANTENNA BRACKET TO INNER FENDER

PANEL RETAINING BOLT

TORQUE SPECIFICATION 14.5 – 19.5 Nm

ANTENNA GROUND BRAID TO INNER FENDER

PANEL RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

4. Tighten the antenna bracket bolt to the correct torque specification.

ANTENNA BRACKET BOLT

TORQUE SPECIFICATION 2.0 – 5.0 Nm

5. Extend the antenna and check the radio operation and reception.

2.9 POWER ANTENNA

POWER ANTENNA SWITCHES

The power antenna directional control switches are integrated with the radio and as such cannot be serviced

separately.

PO WE R AN TEN NA AS S EMB L Y

LT Section No. 09–400

REMOVE

1. Ensure that the audio system is turned off and

that the antenna mast is in the fully retracted

position.

2. From inside the vehicle, remove the

passenger’s side hinge pillar trim assembly.

Refer to Section 1A8, 2.8 HINGE PILLAR

TRIM ASSEMBLY.

3. Leaving the wiring harnesses connected to the

exposed module, manoeuvre the module from

the plastic mounting bracket.

4. Remove the plastic mounting bracket.

5. Disconnect the antenna lead (1) from the

connecting socket of the antenna extension

lead.

Figure 12D-24

6. Remove the fender inner liner. Refer to

Section 1A1, 3.1 FRONT WHEELHOUSE

LINER.

7. Remove the screw (1) connecting the ground

braid to the inner fender ground terminal.

8. Disconnect the antenna wiring harness

connector (5) from the main wiring harness

connector in the wheel well.

9. While supporting the antenna assembly (4),

remove the retaining bolt (6) from the antenna

support bracket.

10. Remove the antenna lead grommet (2) from

the inner fender panel and pull the lead out

from the passenger compartment.

11. Withdraw the antenna down through the bezel

and remove the antenna, complete with leads,

grommet and bracket.

12. Remove the two nuts (3) securing the antenna

to the mounting bracket.

Figure 12D-25

REINSTALL

Installation of the power antenna is the reverse of the removal procedure, taking note of the following:

1. Ensure that the cable and harness are routed correctly.

2. Ensure that the antenna and the ground leads are routed correctly and are securely connected.

3. With the antenna pushed up against the stop in the bezel, tighten the bolt attaching the antenna bracket to the

inner fender panel to the correct torque specification.

ANTENNA BRACKET TO INNER FENDER

PANEL RETAINING BOLT

TORQUE SPECIFICATION 14.5 – 19.5 Nm

ANTENNA GROUND BRAID TO INNER FENDER

PANEL RETAINING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

ANTENNA ASSEMBLY TO BRACKET NUTS

TORQUE SPECIFICATION 5.0 – 12.0 Nm

4. Check the antenna operation and the radio reception.

MAST REPLACEMENT

LT Section No. 09–400

The following procedure is for replacing a damaged or faulty antenna mast and drive cable assembly.

1. Remove the power antenna assembly as previously described in this Section.

2. Remove the chrome-plated nut from the top end of the mast tube.

3. Extend the damaged antenna mast as far as possible by attaching the battery negative, via a jumper lead, to

the antenna mounting bracket and connect the battery positive to both the antenna red and white wire

terminals.

At the end of the mast travel, pull out the mast and drive cable from the antenna housing.

NOTE: If the mast is too badly damaged to extend, grip the tip of mast with a pair of pliers and pull the mast and

drive cable assembly up and out from the antenna housing.

4. If necessary, remove the contact spring (metal sleeve) from the old mast and drive cable and install onto the

replacement mast and drive cable.

5. Feed the end of the drive cable down the mast tube of the antenna housing with the serrated side of the drive

cable facing toward the centre of the housing. Continue to feed the drive cable down until it engages with the

drive mechanism.

NOTE: It may be necessary to twist the drive cable clockwise and anti-clockwise slightly to enable the end of cable

to feed through the opening at the base of the mast tube before it engages the drive mechanism.

6. With an assistant holding the antenna and mast assembly, connect the antenna support bracket, via a jumper

lead, to battery negative.

7. Momentarily connect battery positive to the antenna red wire. The drive mechanism should start to retract the

drive cable into the antenna housing.

8. With the drive cable engaged to the drive mechanism, reconnect battery positive to the antenna red wire and

allow the drive mechanism to wind in the drive cable and mast into the mast tube and housing.

9. At this stage the mast might be fully retracted into the mast tube and housing. Reconnect both the red and

white wires to battery positive and allow the mast to extend fully until the motor stops.

Disconnect the white wire from battery positive and allow the mast to fully retract.

10. Install the chrome-plated nut onto the mast tube and tighten the nut securely.

11. Install the power antenna assembly as described previously in this Section then check the antenna mast

operation.

CHECKING ANTENNA MOTOR OPERATION

NOTE: The following ‘Checking Antenna Motor

Operation’ tests are made at the main wiring

harness-to-antenna motor connector located in the

wheel well.

Legend

1. Main wiring harness-to-antenna motor

connector

2. Ground braid

Figure 12D-26

The voltages shown are measured to a good ground point on the vehicle body.

VOLT AGE ON ANTENN A HARNESS WIRES

Red White Action

12 V 12 V Antenna extends

12 V 0 V Antenna retracts

0 V 12 V Antenna does not

move

0 V 0 V Antenna does not

move

If the antenna motor does not correctly respond to the inputs as specified, ensure that a good ground connection is

being made through the mounting bracket by measuring the resistance from the bracket to a good ground point. If

more than 1 ohm is recorded, replace the power antenna assembly. Check that the black wire with the forked

ground connector is securely attached to the antenna mounting bracket.

NOTE: If there is significant noise on the AM band (with the radio tuned to a weak station outdoors), then check the

ground quality of the antenna at the points previously mentioned. The antenna ground terminal has a large effect

on the screen. Also check the ground quality of the ground braid (refer to Item 2 of Figure 12D-26).

2.10 DIVERSITY ANTENNA

The diversity antenna is an integral part of the rear window assembly. The thin conductors that form the diversity

antenna are laid on the inside of the rear window glass in the same manner as the rear window heating elements.

A single terminal is located on the inside of the rear window glass, on the passenger side, to allow connection of

the diversity antenna to the diversity antenna module, located under the rear parcel shelf trim.

The diversity antenna module amplifies the radio signal received by the diversity antenna and transmits it to the

audio system head unit via coaxial cable.

NOTE: Due to the internal circuitry of the radio receiver, if the fender mounted mast antenna is retracted, faulty or

disconnected, the radio may not use the diversity antenna system for radio reception if the FM signal is weak.

DIVERSITY ANTENNA — TEST

1. Remove the quarter window trim from the left-hand side of the vehicle, refer to

Section 1A8, 3.15 HEADLINING AND INTERIOR TRIM. Disconnect the diversity antenna module connector

from the diversity antenna terminal.

2. Using an ohmmeter measure the resistance from the diversity antenna terminal to the diversity antenna

conductors on the inside of the rear window glass.

Resistance should be less than 20 ohms from the diversity antenna connector to any point on the diversity

antenna conductors.

NOTE: Avoid using excessive force on the ohmmeter probe, as damage to the diversity antenna conductors will

result.

DIVERSITY ANTENN A MODULE

LT Section No. 09–400

REMOVE

1. Ensure that the audio system is turned off.

2. Remove the rear parcel-shelf trim, refer to Section 1A8, 2.9 REAR WINDOW TRIM PANEL ASSEMBLY.

3. Remove the passenger’s side hinge pillar trim. Refer to Section 1A8, 2.8 HINGE PILLAR TRIM ASSEMBLY.

4. Leaving the wiring harnesses connected to the

exposed module, manoeuvre the module from

the plastic mounting bracket.

5. Remove the plastic mounting bracket.

6. Disconnect the diversity antenna module

coaxial cable (1) from the radio diversity

antenna extension cable connector.

7. Disconnect the diversity antenna module

power cable (2) to main wiring harness

connector.

Figure 12D-27

8. Remove the diversity antenna module leads

from the retaining clips and remove the leads

from the rocker panel.

9. Remove the screw (1) securing the diversity

antenna amplifier (4) to the rear parcel shelf.

Remove the diversity antenna module and

leads.

10. Remove the screw (2) securing the diversity

antenna ground terminal to the vehicle body.

11. Remove the diversity antenna module

connector (3) from the diversity antenna

terminal located on the rear window.

Figure 12D-28

REINSTALL

Installation of the diversity antenna module is the

reverse of the removal procedure, noting the

following:

1. Ensure that the mounting tab (5) on the

diversity antenna module (4) is correctly

engaged into the mounting slot on the rear

parcel shelf.

2. Tighten the diversity antenna module mounting

screw (1) to the correct torque specification.

DIVERSITY ANTENNA MODULE

MOUNTING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

3. Tighten the diversity antenna grounding screw

(2) to the correct torque specification.

DIVERSITY ANTENNA

GROUNDING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

4. After installing the diversity antenna connector

(3), bend the tab in the direction shown.

Figure 12D-29

2.11 HORN BAR STEREO CONTROLS

The horn bar stereo control system consists of two control switch assemblies, one located on each side of the

driver’s side airbag (horn bar).

The horn bar stereo controls utilise the clock spring coil harness as a data link to the radio.

LT Section No. 09–440

REMOVE

CAUTION: Disable the OPS, SRS. Refer to

Section 12M, 2.2 SYSTEM DISABLING AND

EN ABLING PROC EDUR E.

1. Ensure that the audio system is turned off.

2. Remove the airbag assembly from the steering

wheel. Refer to Section 12M, 2.3 STEERING

WHEEL INFLATABLE RESTRAINT

(DRIVER’S AIRBAG) MO DULE ASSEMBLY.

3. Disconnect the horn bar stereo control harness

(1) from the steering column harness

connector.

4. Remove the four screws (2) attaching the horn

bar stereo switch assembly (3) to the steering

wheel and remove the horn bar stereo switch

assembly.

NOTE: The horn bar stereo switch assembly

consists of two switch blocks connected together

by a wiring harness.

Figure 12D-30

REINSTALL

Installation of the horn bar stereo control system is

the reverse of the removal procedure, noting the

following:

1. Ensure that the stereo switch connectors seat

correctly into the retaining clips on the steering

wheel to avoid crushing when the airbag is

installed.

2. Tighten screws attaching the horn bar stereo

switch assembly to the steering wheel to the

correct torque specification.

STEREO SWITCH ASSEMBLY TO

STEERING WHEEL SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

CAUTION: Enable the OPS, SRS. Refer to

Section 12M, 2.2 SYSTEM DISABLING AND

EN ABLING PROC EDUR E.

Techline

2.12 SUBWOOFER AMPLIFIER

LT Section No. 09–515

REMOVE

1. Ensure that the audio system is turned off.

2. Open the rear compartment and remove the

carpet. Refer to Section 1A8, 2.16 REAR

COMPARTMENT FLOOR CARPET

ASSEMBLY.

3. Remove the trim retainer from the left-hand

side of the rear compartment wheelhouse

carpet trim and remove wheelhouse trim, refer

to Section 1A1, BODY.

4. Loosen the four subwoofer amplifier retaining

screws (1) and slide the amplifier upward to

release the screw heads from the slots in the

inner side panel (2).

5. Withdraw the subwoofer amplifier assembly (3)

from the rear compartment.

6. Disconnect the side subwoofer amplifier

assembly harness connector.

Figure 12D-31

REINSTALL

1. Installation is the reverse of the removal

procedure. Tighten the retaining screws to the

correct torque specification.

SUBWOOFER AMPLIFIER

RETAINING SCREW

TORQUE SPECIFICATION 0.5 – 1.5 Nm

2. Check the operation of the subwoofer amplifier.

2.13 AUDIO SYSTEM SECURITY CODE

CODE ENTRY

1. Switch the ignition on.

2. Switch the radio on if turned off.

3. The display shows ’CODE 1_ _ _ _ ‘.

4. Use the preset buttons to enter the PIN code.

Example:

If the PIN code belonging to the radio is 3651.

Press Button Display

Press preset button 3 _ _ _

Press preset button 3 6 _ _

Press preset button 3 6 5 _

Press preset button 3 6 5 1

If a wrong PIN code has been entered the display will show ’CODE ERROR WAIT’.

After the waiting time ‘CODE 2 _ _ _ _’ will be shown on the display indicating that this is the second attempt. The

correct code should now be entered. After three attempts the delay time will be 1 hour. The display will show

“LOCK OUT 1 HOUR”. After the delay time another three attempts at entering the code will be possible.

2.14 AUDIO SYSTEM MASTER RESET

RESET PROCEDURE

The following procedure resets the audio system parameters to the factory default settings.

1. Switch the ignition on.

2. Switch the radio off.

3. Press and hold the ON button and the Memory Preset Station 4 button for at least 2 seconds.

The following table details the audio system parameters and the factory default settings.

NOTE: These parameters can also be reset from the instrument cluster MFD in Customisation Mode. Refer to

Section 12C, 1.8 CUST OM ISATIO N M O DE for further details.

PARAMETER RANGE DEFAULT

Bass –6 to +6 STD (0)

Treble –6 to +6 STD (0)

Balance –6 to +6 STD (0)

Fader –6 to +6 STD (0)

Loudness On / Off On

Equaliser On / Off Off

CD Random On / Off Off

CD Repeat On / Off Off

Local / Distance Local / Distance Distance

Display Mode Clock Adjust / Time Time

Audio Distortion Limiter On / Off On

Confirmation Beeps On / Off On

Speed Dependent Volume 0 to 5 2

3. DIAGNOSTICS

3.1 GENERAL DIAGNOSTIC INFORMATION

This audio system diagnosis is split into several parts.

1. The first part is a short description of the principles of radio operation. It is by no means exhaustive, and is to

serve only to give an understanding of how radios work and how to solve problems when they occur.

2. Many radio problems are caused by basic grounding and short-circuiting problems, which can be quickly found

using the checks included in the Basic Checks in this Diagnosis Section.

3. The most common fault is that of ‘static’ and so an explanation of what it is, what causes it and how to fix it is

also included.

4. Diagnostic charts are included to help diagnose common complaints.

PRINCIPLES OF OPERATION

RADIO RECEPTION

High quality radio reception is obviously more difficult to achieve in a moving vehicle than from a stationary

location. Radio systems fitted to vehicles incorporate sophisticated electronics to enhance radio reception by

extending the useable listening range whilst eliminating extraneous noises, such as static.

Many owners complain of ‘reception problems’, which are normal radio operating characteristics, particularly with

FM. Such complaints arise as a result of owner misconception as to what constitutes normal radio reception.

Naturally, radio replacement under these circumstances will not affect the radio operating characteristics and has

the potential to create additional owner dissatisfaction. Thus a careful, well informed explanation of radio reception

expectations is more likely to enhance the owner’s understanding and satisfaction, as well as avoiding

unnecessary repair costs and inconvenience to the owner of the vehicle.

FM RECEPTION IN VEHICLES

FM stereo’s maximum range is normally limited to 40 to 50 km. The strength of the FM signal is related to the

distance between the receiver and the transmitter. FM signals follow the line of sight, exhibiting many similar

characteristics to those of light. That is, similarly to sunlight, FM radio waves are cut off by the horizon. Since most

FM transmitter towers are nominally 100 metres from the ground, useable reception cannot extend much beyond

the horizon. FM signals will not bend around corners, but as with light, may be reflected (or blocked) by large

objects.

Figure 12D-32

Legend

1. Radio Transmission Tower 2. FM Transmission (40 – 50 km) 3. AM Transmission (up to several

hundred km)

Techline

Although FM signals will not bend around corners, they can be reflected by large objects, for example hills or

buildings. Because of these characteristics, a reflected signal and a direct signal can reach the radio’s antenna at

the same time, resulting in the signals interfering with each other or cancelling each other out. This obviously leads

to a distortion of the received signal or a loss of sound, and is known as multi-path interference.

Multi-path interference occurs only with FM reception and can be characterised by changes in distortion (static)

levels occurring as the vehicle is moving. This is due to the vehicle’s antenna entering and leaving FM signal

interference areas.

FM signal waves have short wavelength, which also means that the interference area is small – in the region of

several centimetres across. Because of the small size of interference areas, a vehicle may pass through many in a

short time. When the vehicle is stationary in an interference area, moving it half a metre can place the antenna in a

region of clear signal.

A vehicle fitted with a two antenna FM diversity system helps reduce multi-path interference by ensuring that at

least one antenna is outside the cancelled signal region.

Flutter or fading is caused when a vehicle passes into an area where the direct signal can be overshadowed by a

building, large structure or hill.

Figure 12D-33

Legend

1. Main Signal Path 2. Multi-path Signal 3. Shadowed Signal

Atmospheric conditions can also affect FM reception. Unexplained loss of sensitivity can be caused by high

humidity. Cloudy days are also better for reception than clear days. With electronic tuning radios, users can

sometimes be confused by abbreviated radio station call signs. People who tune their radios to abbreviated call

signal frequencies may be slightly off the correct frequency.

NOTE: The following list details the AM and FM frequency ranges for various regions.

Australian Range

FM: 87.5 MHz to 108.0 MHz, 0.1 MHz steps, 50 µs de-emphasis

AM: 522 kHz to 1710 kHz, 9 kHz steps

Gulf States Range

FM: 87.5 MHz to 108.0 MHz, 0.1 MHz steps, 50 µs de-emphasis

AM: 531 kHz to 1602 kHz, 9 kHz steps

Brazil Range, North / South America Range

FM: 87.5 MHz to 107.9 MHz, 0.2 MHz steps, 75 µs de-emphasis

AM: 530 kHz to 1710 kHz, 10 kHz steps

Asean Range, Israel Range, South Africa Range, Europe Range (without LW and RDS)

FM: 87.5 MHz to 108.0 MHz, 0.1 / 0.05 MHz steps, 50 µs de-emphasis

AM: 531 kHz to 1602 kHz, 9 kHz steps

Thailand Range

FM: 87.5 MHz to 108.0 MHz, 0.05 MHz steps, 50 µs de-emphasis

AM: 531 kHz to 1602 kHz, 9 kHz steps

Band Selection

The bands available are: FM1, FM2, FM ASM, AM and AM ASM.

Preset St atio n

Preset Memory:

FM1 six stations

FM2 six stations

FM ASM six stations

AM six stations

AM ASM six stations

AM RECEPTION IN VEHICLES

In contrast to FM signals, AM signals will bend around corners and skip along the ground. This is due to AM signals

having longer wavelength and lower frequency. The layer of atmosphere known as the ionosphere can reflect the

signal. This phenomenon gives AM a longer reception range than FM, especially at night.

Figure 12D-34

Legend

1. Radio Transmission Tower 3. AM Transmission

2. Ionosphere 4. FM Transmission

AM reception is affected by static induced by electrical power lines, traffic lights, electronic signs and

thunderstorms. Fade of AM signals can also be expected when driving through tunnels, underpasses, and in city

centres.

Figure 12D-35

Legend

1. Signal from Radio Station 5. Antenna Cable Centre Core

2. External Interference 6. Antenna cable

3. Body 7. Internal Interference

4. Antenna Cable Ground Braid 8. Music

As shown, signals from radio stations are picked up by the antenna and fed to the radio while being shielded from

interference sources by the braid. This is a complete electrical circuit, any breaks in the circuit, such as poor

connections, will result in poor reception.

Interference is due to the antenna system picking up signals other than those from the desired station. These

undesirable signals may be produced by electrical equipment in the vehicle itself, such as ignition, which is termed

‘internal interference’. Conversely, interference from sources outside the vehicle, such as from power lines, is

known as ‘external interference’.

Internal interference is minimised by the shielding around the antenna wire, which prevents internal noise being

picked up and fed to the radio. The shielding around the core takes the form of a ‘braid’, which completes the

electrical circuit along which signals travel to the radio. Faults in this shielding system allow interference to reach

the radio and hence be reproduced at the speakers as noise.

It is therefore important that the shield of the antenna cable is effectively grounded at both the radio (to the radio

case) and at the antenna end (to the vehicle body), to ensure that minimal interference is received by the radio,

and that the optimum radio sensitivity is achieved.

BASIC CHECKS

Proper performance of the radio system depends greatly on grounding of the antenna and radio case to the vehicle

body, as it eliminates stray currents in the antenna circuit. Stray currents may be induced by wires running parallel

to the path of the radio or antenna wiring, or may be due to ‘noisy’ in-vehicle electrical items.

Resistances or connection quality of the major parts of the radio can be checked with an ohmmeter.

When using an ohmmeter to measure very low resistances, the lead resistance becomes considerable, and must

be subtracted from all subsequent readings. That is, touch the leads together, note the reading, and subtract this

from all subsequent readings.

NOTE: A very good contact point is required to measure ground resistance. This point must not have current

flowing through it during measurement, therefore ensuring that the ignition is turned off. Avoid measuring using the

screw on the door jamb switch. The best place to measure ground resistance is to use one of the self-tapping

screws retaining the A-pillar drip rail. Since these screws are sometimes not properly grounded, one of the screws

may be removed to take measurements directly to the body sheet metal.

1. Remove the battery ground lead. Refer to

Section 00, 5. B ATTERY DISCONN ECT IO N

PROCEDURES.

NOTE: Failure to disconnect the battery ground

lead may lead to incorrect resistance

measurements due to stray currents.

2. Disconnect the antenna extension lead from

behind the passenger side kick-trim.

3. Measure resistance from the outer of the

antenna lead to the vehicle body (1).

Resistance reading 0.3 ohm maximum.

4. Measure resistance from outer of the antenna

extension lead to the vehicle body (2).

Resistance reading 0.6 ohm maximum.

Figure 12D-36

5. Check continuity of the path from the antenna

cable core to the antenna mast by measuring

resistance (1).

Resistance reading 0.4 ohm max.

NOTE: This test can in fact only be performed on

power antennas, since manually operated

antennas are fitted with in-line capacitors with the

antenna body, which misleadingly indicates an

open circuit when resistance is measured.

On vehicles with manually operated antennas,

disconnect the antenna lead from the antenna lead

extension and measure the resistance of the

extension lead cable core from the radio to the

antenna lead connection ends.

Resistance values significantly higher than those

specified indicate poor connections that must be

rectified before proper radio performance can be

obtained.

6. Check for shorts between the antenna core

and the braid by disconnecting from the radio

and measuring the resistance between the two.

The measured value should indicate an open

circuit (very high or infinite resistance).

7. Disconnect the antenna extension lead at both

ends and test the core for continuity.

Figure 12D-37

COMMON RADIO PROBLEMS

STATIC

Static is a buzzing or crackling noise caused by the radio picking up unwanted radio waves and converting them to

noise output by the speakers.

The unwanted radio waves (interference) come from several sources, which can be put into two groups; internal

and external. As the names suggest, external interference comes from outside the vehicle, and is difficult to control,

while the vehicle generates internal interference.

It must be emphasised that a radio system in good condition will protect itself from much static. Before trying to

locate and remove a source of interference it must first be determined that the shielding and grounding of the radio

is in good working order. This can easily be done by performing the tests detailed in the ‘Basic Checks’.

It should be noted that static may occur on weak stations, or when driving under bridges because signals from

ignition and the like become relatively stronger than the radio station signal, causing the ignition interference to

become quite strong. This could be due to stronger than normal ignition interference or a poorly functioning

antenna.

If the cause cannot be isolated after performing the tests and trying to isolate a source of interference, using the

following procedures, it may be that the radio has an internal fault and requires repair.

EXTERNAL INTERFERENCE

Static that occurs only while travelling in certain localities, such as near electrical transformers, is undoubtedly

external interference.

If there is any doubt whether the suspected source is causing interference, a simple check is to stop the vehicle

and turn off everything but the radio. If the source is external, the interference will continue and little can be done to

eliminate it.

NOTE: The perceived interference level can be significantly reduced, in noisy environments, by slightly reducing

the treble on the radio tone controls.

INTERN AL INTERFER EN CE

Internal interference is that caused by some component of the vehicle’s electrical system, and may take many

forms.

Many of the electrical items fitted to motor vehicles produce some sort of radio waves, but these radio waves only

become a problem if they are in the range of frequencies at which the radio receiver picks up and reproduces

signals as sound. For the radio, the vehicle’s electrical system must be designed not to emit radio signals at the

frequencies of the AM and FM bands.

Components are sometimes fitted with suppressing devices as part of their design, and failure of these

suppressors may allow the item to start interfering with radio operation.

Interference will be worse on weak stations, since a strong signal normally overpowers the interfering signal.

Interference can occur when the signal strength drops below a certain threshold, such as driving under a bridge,

inside a workshop, or in the shadow of a building. This situation is shown in the following figure.

Figure 12D-38

Legend

1. Signal Strength 3. Signal at Antenna from Radio Station 5. Normal Reception

2. In-vehicle Noise Interferes with

Tuned Station

4. In-vehicle Noise 6. Reception Blocked

Static may be caused by many internal sources. If static is at ignition frequency, varying with engine speed, the

ignition is the culprit. However, many electrical faults will cause static which otherwise would not be heard.

Examples of ignition interference sources are:

1. Plug leads breaking down.

2. Carbon tracking (arcing) to ground.

3. Faulty spark plugs.

4. Inoperative interference shields.

The actual cause of the interference can be isolated through carefully noting the circumstances under which the

problem occurs. For example, if it occurs only at speeds above approximately 80 km/h in an automatic

transmission equipped vehicle quite possibly it is the electrical signal being sent to the torque converter clutch.

Other sources of static can be:

1. Electric cooling fan.

2. Electric fuel pump.

3. Normal computer ‘noise’ at certain frequencies.

4. Windshield wipers or washers.

DIAGNOSING INTERNAL INTERFERENCE

If a vehicle has an interference problem that only occurs when the engine is turned on, or some other repeatable

circumstance, carry out the following procedure:

1. Park the vehicle in an open area, as far away from buildings as possible. Turn the radio onto the band

(AM\FM) and frequency where the complaint occurs, with the ignition in the Accessories position.

2. Reproduce the interference, eg. turn the ignition on.

3. If interference is due to a fan blower motor, etc. and is judged to be objectionable, try a similar specification

vehicle in the same location. If this is not possible, the component should be substituted to determine whether

it is faulty.

NOTE: Internal interference is often a symptom of a defective radio system, such as poor antenna grounding, etc.

If substituting a new component does not fix the condition, the problem is very likely to be in the radio system, and

the resistance checks in this Section should be performed.

4. Whistles / squeals that occur only when the ignition is on, are probably due to electronic modules in the

vehicle creating interference when active (power applied). These modules may be isolated as a cause of

interference by removing power to them and rechecking. This is best done by turning the ignition off, removing

the fuse that supplies that particular item with power, turning the ignition back on and rechecking. By process

of elimination, the ‘noisy’ module should be able to be found. Once found substitute the module to find out

whether the interference is normal.

SPEAKERS

Before removing speakers suspected of being noisy or faulty, ensure that any distortion that may be present is not

due to any of the following:

1. Foreign matter such as sand lying on the speaker cone, especially horizontally mounted speakers such as the

subwoofers.

2. Cable ties or other such material resting on the back of the speaker cone.

3. Incorrectly fitted speaker mesh or loose trim around speaker assembly.

4. Distortion of the speaker assembly caused by the angled insertion of the speaker retaining screws. Loosening

and tightening the screws while being careful not to distort the speaker cone may rectify the speaker problem.

3.2 AUDIO SYSTEM DIAGNOSTICS

Fault diagnosis for the audio system is divided into two areas; faults which can be remedied by checking the

operation of audio system, and those which can be checked by using the TECH 2 Diagnostic Tool.

DIAGNOSTIC TROUBLE CODES

When a fault is detected, the audio system sets a Diagnostic Trouble Code (DTC) that represents that particular

problem or failure. The DTC remains current as long as the fault remains, and is cleared when the fault is rectified.

The DTC can be read and cleared using the TECH 2.

Each DTC is allocated a number between 10 and 42. For further details on each of the DTC, refer to

3.7 DIAGNOSTIC TROUBLE CODES in this Section.

AUDIO SYSTEM INPUT / OUTPUT SIGNALS

Voltages in the following table are typical voltages that will be read at the audio head unit connector while the radio

is on, ignition is on and the radio is in AM or FM mode. Some variation in the values can be expected due to

changing battery voltages and normal tolerances.

NUMBER FUNCTION TYPICAL VOLTAGE

X1-A1 Secondary Serial Data Bus Typically 4.5 V with digital meter

X1-A2 Battery Voltage Sense Input +12 V (battery voltage)

X1-A3 Telephone Mute 3.9 V with no telephone mute, 0 V with telephone mute

X1-A4 Accessories Input 0 V accessories off, +12 V accessories on

X1-A5 Antenna Trigger 0 V Radio off or CD mode, +12 V in radio mode

X1-A6 Illumination Input 0 V park lamps off, +12 V park lamps on

X1-A7 Battery Supply Voltage +12 V (battery voltage)

X1-A8 Ground 0 V

X1-B1 Right Rear Speaker Output + Cannot read with digital meter

X1-B2 Right Rear Speaker Output – Cannot read with digital meter

X1-B3 Right Front Speaker Output + Cannot read with digital meter

X1-B4 Right Front Speaker Output – Cannot read with digital meter

X1-B5 Left Front Speaker Output + Cannot read with digital meter

X1-B6 Left Front Speaker Output – Cannot read with digital meter

X1-B7 Left Rear Speaker Output + Cannot read with digital meter

X1-B8 Left Rear Speaker Output – Cannot read with digital meter

X1-C7 Telephone Audio + Cannot read with digital meter

X1-C8 Telephone Audio – Cannot read with digital meter

X1-C11 Remote Control Input 3.95 V no button pressed, 1.95 V Mute button pressed

X1-C12 Remote Control Ground 0 V

X2-A Main Antenna Input Cannot read with digital meter

X2-B Main Antenna Ground 0 V

X3-A Diversity Antenna Input Cannot read with digital meter

X3-B Diversity Antenna Ground 0 V

Figure 12D-39

3.3 CONNECTING TECH 2 FOR SYSTEM DIAGNOSIS

TECH 2, with the appropriate software, cables and

adaptors, is capable of reading the audio system

serial data when connected to the Data Link

Connector (DLC). The DLC is connected to the

instrument panel lower right-hand trim, to the right

of the steering column.

1. Data Link Connector (DLC)

2. DLC Adaptor

3. DLC Cable

4. TECH 2

For additional general information on

connecting and operating TECH 2, refer to

Section 0C, TECH 2.

Figure 12D-40

3.4 TECH 2 TES T MODES AND DISPLAYS

A prerequisite of this diagnostic section is for the user to be familiar with the proper use of TECH 2. The following

pages illustrate only the major TECH 2 screen displays and provide a brief explanation of their function for

diagnosing the audio system. If additional information is required on the operation of TECH 2, reference should be

made to either Section 0C TECH 2 or the TECH 2 User’s Guide.

With the ignition turned off, connect TECH 2 to the Data Link Connector (DLC) using the DLC Adaptor, refer to

3.3 CONNECTING TECH 2 FOR SYSTEM DIAGNOSIS in this Section.

MAIN MENU

Turn the ignition on and press the power button

(PWR) on the TECH 2.

The TECH 2 will perform a series of self-

diagnosing power on self-tests (POST). Once this

has been completed successfully, the TECH 2

startup screen will be displayed. Press the Enter

key to continue.

The Main Menu screen is displayed.

Press the F0 function button or Select F0:

Diagnostics by using the arrow keys until F0:

Diagnostics is highlighted and press the Enter key.

VY12D050

Main Menu

F0:

F1:

F2:

F3:

F4:

Diagnostics

Service Programming System (SPS)

View Capture Data

Tool Options

Download/Upload Help

Figure 12D-41

Model Year

Select 2003 from the model year list and press

Enter.

VY12D051

Vehicle Id entification

Sele c t on e of the follow in g

Model Year(s)

(3)

(2)

(1)

(Y)

(X)

(W)

(V)

2003

2002

2001

2000

1999

1998

1997

Figure 12D-42

Vehicle Identification Menu

Select the appropriate vehicle type from the list and

press Enter.

Figure 12D-43

System Selection Menu

Select F3: Body from the System Selection Menu

and press Enter.

VY12D053

System Selectio n Menu

(3) 2003 VY Commodore

F0:

F1:

F2:

F3:

F4:

Engine

Transmission

Chassis

Body

Veh icle DTC Che ck

Figure 12D-44

Audio System Sele ction

Select Audio System and press Enter.

VY12D054

Vehicle Id entifiction

Sele c t on e of the follow in g

Body

Body Con trol Module

Powertrai n Int erface Module

SRS

Instrument

Occupant Climate Control

Au dio System

Telemat ics S ystem

Figure 12D-45

Turn the ignition on (as requested) and press the

Confirm soft key to continue.

VY12D055

Body

(3) 2003 VY Commodore

Au dio System

Turn on Ignition!

Figure 12D-46

The audio system identification details will be

displayed. Scroll through the list using the TECH 2

Up and Down arrows.

Figure 12D-47

Press the Confirm soft key to confirm these details.

VY12D057

Body

(3) 2003 VY Commodore

Au dio System

VAP Process Number

Co de Index

Code Version

VIN Digit 1-10 (Vehicl

VIN Digit 11-17 (Vehicl

6GIYK52AO3

L123456

Figure 12D-48

BODY MENU

This menu provides the TECH 2 user with access

to the various functions used to diagnose faults in

the audio system.

F0: Normal Mode

The normal mode data list is used to view serial

data being sent from the audio system. Refer to

3.6 NORMAL MODE in this Section.

F1: Diagnostic Trouble Codes

In this mode Diagnostic Trouble Codes can be

read and cleared. Refer to 3.7 DIAGNOSTIC

TROUBLE CODES in this Section.

F2: Data Display

In this mode, TECH 2 displays the status of inputs

and outputs of the audio system. Refer to

3.8 DATA DISPLAY in this Section.

F3: Snapshot

In this test mode, the TECH 2 captures data before

and after a forced manual error. Refer to

3.9 SN APSHOT in this Section.

F4: Miscellaneous Tests

In this test mode, the TECH 2 can test and

diagnose faults in the audio system. Refer to

3.10 MISCELLANEOUS TESTS in this Section.

F5: Program

Audio system information can be programmed

when this mode is selected. Refer to

3.11 PROGRAM in this Section.

VY12D058

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-49

3.5 USING TECH 2 TO DIAGNOSE THE AUDIO SYSTEM

A prerequisite to this diagnostic section is that the user be familiar with the proper use of TECH 2. The following

pages illustrate only the major TECH 2 screen displays and provide a brief explanation of their function for

diagnosing the Audio System. If additional information is required on the operation of TECH 2, refer to

Section 0C, TECH 2.

SYSTEM SELECTION MENU

This mode contains all functions to test, diagnose,

monitor and program the vehicles body systems

including the Audio System as well as providing

the opportunity to check all DTC that may be set in

the vehicle.

1. With TECH 2 connected to the DLC:

• select F0: Diagnostics from the Main

Menu,

• select the appropriate model year at the

vehicle Identification Menu,

• select the appropriate vehicle type at the

next screen, and

• select F3: Body at the System Selection

Menu.

VY12D053

System Selectio n Menu

(3) 2003 VY Commodore

F0:

F1:

F2:

F3:

F4:

Engine

Transmission

Chassis

Body

Veh icle DTC Che ck

Figure 12D-50

AUDIO SYSTEM SELECTION

1. Select Audio System at the Vehicle

Identification Menu.

Once Audio System has been selected, the

following audio System Identification screens will

appear which require action.

VY12D054

Vehicle Id entifiction

Sele c t on e of the follow in g

Body

Body Con trol Module

Powertrai n Int erface Module

SRS

Instrument

Occupant Climate Control

Au dio System

Telemat ics S ystem

Figure 12D-51

AUDIO SYSTEM IDENTIFICATION

1. Turn the ignition on (as requested) and press

Confirm soft key to continue.

VY12D055

Body

(3) 2003 VY Commodore

Au dio System

Turn on Ignition!

Figure 12D-52

2. The audio system identification details will be

displayed. Scroll through the list using the

TECH 2 Up and Down arrows.

Figure 12D-53

3. Press the Confirm soft key to confirm these

details and the Body Menu will be displayed.

VY12D057

Body

(3) 2003 VY Commodore

Au dio System

VAP Process Number

Co de Index

Code Version

VIN Digit 1-10 (Vehicl

VIN Digit 11-17 (Vehicl

6GIYK52AO3

L123456

Figure 12D-54

BODY MENU

1. Select the appropriate menu and press the

Enter key.

NOTE: If information regarding DTC set for the

vehicle is required, select Diagnostic Trouble

Codes and press Enter to continue. To return to

the Body Menu from the Diagnostic Trouble Codes

screen, simply press the Exit key on TECH 2.

VY12D058

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-55

3.6 NORMAL MODE

The Normal Mode data list is used to view serial data being sent from the audio system.

1. From the Body Menu select Normal Mode and

press the Enter key.

VY12D058

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-56

F0: NORMAL MODE

Details of the serial data in the normal mode data

list are provided in the following table.

VY12D059

Normal Mode

Ra di o St atus

Antenna Required

Antenna Direction

Radio DTC Status

Mute

Pause

MFD Message (Multi)

Yes

Inactive

No DTC

Inactive

Figure 12D-57

Normal Mode Data List

TECH 2 DISPLAY RANGE REMARKS

Radio Status On / Off When the audio system head unit is turned

off, power is still applied to the unit to

maintain serial data bus communications.

Antenna Required Yes / No

(Yes = Antenna Required

No = Antenna Not Required)

ctive when radio is in AM or FM mode.

Voltage is within 0.5 V of battery voltage

when active.

Antenna Switch Off / Down / Up

ctive when the antenna up or down

button is pressed on models with electric

height adjustable antenna.

Radio DTC Status No DTC / DTC's Set

ctive when a DTC has been set by the

audio system.

Mute Active / Inactive Active when the radio or CD is muted.

Pause Active / Inactive Active when the CD is paused.

MFD Message Yes / No

(Yes = Module Response With Message

No = Normal Module Response)

ctive when data is being sent to the

instrument cluster multi-function display

(MFD).

3.7 DIAGNOSTIC TROUBLE CODES

1. From the Body Menu select Diagnostic Trouble

Codes and press the Enter key.

VY12D085

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-58

2. Scroll through the Diagnostic Trouble Codes

list using the TECH 2 Up and Down arrows. To

select the required item, press the Enter key.

F0: Read Current DTC Information. If this mode

is selected, a listing of all (if any) DTC that have

been set by the audio system will be displayed.

F1: Clear DTC Information. DTC can be cleared

in this mode by simply selecting F1: Clear DTC

Information, pressing the Enter key on TECH 2 and

confirming the action as instructed by TECH 2.

NOTE: TECH 2 will display Clear DTC Information

Failed if any DTC are still current.

VY12D060

Diagnostics Tr oub le Codes

F0:

F1:

Rea d Current DTC Information

Clear DTC Information

Figure 12D-59

READ CURRENT DTC INFORMATION

If any DTCs are set, reference should be made to

the relevant diagnostic charts in this Section.

NOTE: This illustration shows and example of two

DTCs. The following table identifies DTCs

applicable to the Audio System.

VY12D061

Rea d Current DTC Information

Current

Fascia Button Jammed

Current

No BCM Serial Dat a

Figure 12D-60

Diagnostic Trouble Code List

DTC 10 Fascia Button Jammed DTC 30 Internal Bus Failure

DTC 11 Steering Wheel Remote Button Jammed DTC 33 Single Communication Bus Failure

DTC 12 Reserved DTC 34 Multi Communication Bus Failure

DTC 21 CD Mechanism Error DTC 35 Fascia Communication Bus Failure

DTC 22 CD Play Error DTC 36 Reserved

DTC 24 CD Loading Error DTC 40 No BCM Serial Data

DTC 25 CD Defect DTC 41 Reserved

DTC 26 CD General Error DTC 42 Reserved

3.8 DATA DISPLAY

The Data Display function allows the status of the audio system inputs and outputs to be monitored, as well as the

system identification details.

1. From the Body Menu select Data Display and

press the Enter key.

VY12D086

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-61

2. Scroll through the Data Display list using the

TECH 2 Up and Down arrows. To select the

required item, press the Enter key.

F0: Data List. If this mode is selected, a listing of

all serial data being sent by the audio system will

be displayed.

F1: System Information. Provides details of

system identification.

VY12D062

Data Displ ay

F0:

F1:

Data List

System Iden tificat ion

Figure 12D-62

F0: DATA LIST

1. The serial data from the audio system can be checked and tested by selecting the item and pressing the Select

Items soft key. The list can be scrolled by using the Up and Down arrow keys.

NOTE: Only the data relevant to the level of audio system installed will be displayed.

Data Display Data List

TECH 2 DISPLAY RANGE REMARKS

Ignition Status On / Off Ignition switch status at terminal X1-

Displays ON when ignition is on.

Security Wait Time Active / Inactive Security lockout timer status. Displays

CTIVE when an incorrect PIN Code has

been entered.

Audio System Linked to BCM Linked / Unlinked Status of Autocoding system. Shows

LINKED when the radio has been linked to

the vehicle.

Radio Status On / Off Displays audio system status.

Key Priority Signal 1 / 2 Current key setting in use by the audio

system. Setting is transmitted by BCM.

Antenna Up Required / Not Required Within 0.5 V of battery voltage when in AM

or FM mode, and 0 V in CD mode.

Antenna Main / Diversity Front or rear antenna selected (if fitted).

Antenna Signal Strength 0 to 100 Signal strength of received station.

100 = very strong signal.

Frequency AM and FM Frequency Range Displays the frequency of the current

station.

TECH 2 DISPLAY RANGE REMARKS

Frequency Unit AM = kHz / FM = MHz Displays the frequency of the current radio

mode.

Volume 0 to 63 Volume level set by the volume knob or

remote control.

Speed Dependent Volume

Control

0 to 20

mount of additional volume added due to

the vehicle speed. Speed is taken from the

serial bus.

Speed Volume Curve 0 to 5 Speed dependent volume compensation

curve selected in the Instrument Cluster

Customisation Mode (Options Menu).

Mute Control Input Active / Inactive Sound is muted by MUTE button on

steering wheel.

Park Lamp Switch On / Off Status of park lamp input. Displays ON

when park lamps are on.

Preset 1 to 6 Current radio Memory Preset selection.

0 = no preset selected.

Radio Band FM1, FM2, FM ASM, AM, AM ASM Current radio band and mode selection.

Search Sensitivity DX / LO Station searching sensitivity selection. DX

= Distant Stations, LO = Local Stations.

Stereo Status Mono / Intermediate / Full Stereo Displays the current FM stereo status.

Setting depends on antenna signal

strength, multipath and other factors.

Bass –6 to +6 Current Bass setting, adjusted with the

audio knob. –6 = Minimum, STD =

Standard Setting, +6 = Maximum

Treble –6 to +6 Current Treble setting, adjusted with the

audio knob. –6 = Minimum, STD =

Standard Setting, +6 = Maximum

Balance –6 to +6 Current Balance setting, adjusted with the

audio knob. L6 = Maximum Left, STD =

Standard Setting, R6 = Maximum Right

Fader –6 to +6 Current Fader setting, adjusted with the

audio knob. R6 = Maximum Rear, STD =

Standard Setting, F6 = Maximum Front

Loudness Bass Boost –6 to +6

mount of Bass added by the Loudness

function. Reduces to 0 as the volume is

increased. –6 = Minimum, STD = Standard

Setting, +6 = Maximum

Loudness Treble Boost –6 to +6 Amount of Treble added by the Loudness

function. Reduces to 0 as the volume is

increased. –6 = Minimum, STD = Standard

Setting, +6 = Maximum

Equaliser Off, Rock, Pop, Jazz, Classical, Vocal Displays the Equaliser Mode that is

currently active.

Equaliser Boost Off, –2 to +2 Displays the current Boost selection.

Audio Source Tuner, CD, External Source Displays the current audio source

selection.

Fascia Button Button Name / Key Released Displays the name of the audio system

head unit fascia button when that button is

pressed, or Key Released if no button is

pressed.

Steering Wheel Remote Control Button Name / Key Released Displays the name of the steering wheel

remote control button when that button is

press, or Key Released if no button is

pressed.

CD In Yes / No Indicates if a CD is currently in the

mechanism or not.

TECH 2 DISPLAY RANGE REMARKS

Current CD None, 1 to 6 Displays the number of the CD in the CD

Changer currently being played.

Current Track 0 to 99 Displays the current CD track being

played. Number displayed depends on the

number of tracks on the disc. 0 = no track

selected.

CD Mode Track Random, Track Repeat, Track Scan,

Disc Random, Disc Repeat, Disc Scan,

Play, Pause

Displays the current CD playing mode.

F1: SYSTEM IDENTIFICATION

The System Identification screen provides

production information relevant to the Audio

System.

The Identifier Number defines the Audio System

installed. The details are:

• 000 — Unidentified.

• 101 — System 1; Utility, Executive,

Commodore S, CV6 Coupe and Lumina LS.

• 201 — System 2; Not used.

• 202 — System 2; Acclaim.

• 301 — System 3; Berlina and Lumina LTZ.

• 302 — System 3; Commodore SS and

Lumina SS, and optional for Utility,

Executive, Acclaim, Commodore S and

Lumina LS.

• 401 — System 4; Calais and CV8 Coupe.

• 402 — System 4; No diversity antenna

fitted.

• 403 — System 4; Omega.

Figure 12D-63

VY12D057

Body

(3) 2003 VY Commodore

Au dio System

VAP Process Number

Co de Index

Code Version

VIN Digit 1-10 (Vehicl

VIN Digit 11-17 (Vehicl

6GIYK52AO3

L123456

Figure 12D-64

3.9 SNAPSHOT

1. From the Body Menu select Snapshot and

press the Enter key.

VY12D087

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-65

The TECH 2 can be used to record system

information that is occurring at a particular moment

in time, and this is called a snapshot. For more

details, refer to Section 0C, TECH 2.

VY12D063

Snapshot Opt ions

Trigger Type: Manual Trigger

F0: Manual Trigger

Trigger Point: Center

F4: Beginning

F5: Center

F6: End

Figure 12D-66

3.10 MISCELLANEOUS TESTS

The TECH 2 can be used to verify correct operation of the various functions of the audio system to assist in

isolating a fault condition. The TECH 2 can be used to force various functions on or off and monitors the response.

Note that if any test takes longer than 40 seconds to perform, the audio system will time-out and the test may have

to be started again.

NOTE: The following Miscellaneous Tests will not be available at the start of production, but will be introduced in a

later version of software:

• Speed Dependent Volume,

• Priority Key Selection,

• Illumination,

• Preset Memory, and

• Audio Source.

1. From the Body Menu select Miscellaneous

Tests and press the Enter key.

VY12D067

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-67

2. Scroll through the Miscellaneous Tests using

the TECH 2 Up and Down arrows. To select

the required test, press the Enter key.

NOTE: Only the Miscellaneous Tests relevant to

the level of audio system installed will be

displayed.

Figure 12D-68

VY12D069

Miscellaneous Tests

Preset Memory

Audio

CD Functi on

Eject CD

Au dio Source

Figure 12D-69

SPEED DEPENDENT VOLUME

NOTE: This test will not be available at the start of production, but will be introduced in a later version of software.

PRIORITY KEY SELECTION

NOTE: This test will not be available at the start of production, but will be introduced in a later version of software.

ILLUMINATION

NOTE: This test will not be available at the start of production, but will be introduced in a later version of software.

ANTENNA SELECTION

Some models are fitted with a dual antenna system, called Main and Diversity antennas respectively. When testing

the antenna systems it is useful to command to the radio which antenna to use when making comparisons in signal

quality between the two systems. The Antenna Selection test is performed using TECH 2.

1. Connect TECH 2 to the DLC. Select Diagnostics / Model Year / Vehicle Model / Body / Audio System /

Miscellaneous Tests / Antenna (Main / Diversity).

2. Switch the audio system on and select a strong local FM radio station. Set the volume to a comfortable

listening level.

3. Use the Main soft key on the TECH 2 to select the main antenna. Verify that the TECH 2 screen reflects the

appropriate antenna selection.

4. From the Body Menu select Data Display / Data List, then use the Down arrow key on the TECH 2 to scroll to

Antenna and verify that the Main antenna is selected.

5. Use the Down arrow key on the TECH 2 to scroll to Antenna Signal Strength and note the signal strength

indication.

6. From the Body Menu select Miscellaneous Tests / Antenna (Main / Diversity).

7. Use the Diversity soft key on the TECH 2 to select the diversity antenna. Verify that the TECH 2 screen reflects

the appropriate antenna selection.

8. From the Body Menu select Data Display / Data List, then use the Down arrow key on the TECH 2 to scroll to

Antenna and verify that the Diversity antenna is selected.

9. Use the Down arrow key on the TECH 2 to scroll to Antenna Signal Strength and note the signal strength

indication.

10. Compare signal strength figures to provide an objective comparison of antenna performance.

11. Press the Quit soft key to exit the test. The Main antenna will be selected on exiting the test.

12. If the Antenna Selection function does not operate correctly, replace the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

ANTENNA (UP / DOWN)

The Antenna (Up / Down) test is performed using

TECH 2, and directly controls the Main antenna by

driving it up or down.

1. Connect TECH 2 to the DLC. Select

Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Miscellaneous Tests /

Antenna (Up / Down).

2. Ensure that the ignition is on, and turn the

radio on.

3. The TECH 2 will display the current antenna

status at the bottom of the screen.

4. Using the Up soft key on the TECH 2, drive the

antenna up. Verify correct antenna operation,

and that this status is reflected on the TECH 2

screen.

5. Using the Down soft key on the TECH 2, drive

the antenna down. Verify correct antenna

operation, and that this status is reflected on

the TECH 2 screen.

6. Press the Quit soft key to exit the test. The

Main antenna will be left in the last test position

upon exiting the test.

7. If the Antenna (Up / Down) function does not

operate correctly, replace the audio system

head unit. Refer to 2.1 AUDIO SY STEM HE AD

UNIT in this Section.

Figure 12D-70

SECURITY LED

The LED on the top left of the radio fascia is used as a security indicator and to show the status of the CD/CDC

loading and ejecting. This test is performed using TECH 2, and directly controls the LED to verify correct

operation.

1. Connect TECH 2 to the DLC. Select Diagnostics / Model Year / Vehicle Model / Body / Audio System /

Miscellaneous Tests / LED.

2. Ensure that the ignition is on, and turn the radio on.

3. Press the On soft key on the TECH 2, and verify that the LED illuminates (orange). If LED illuminates green or

red, this indicates a fault and the audio system head unit should be replaced.

4. Press the Off soft key on the TECH 2 and verify that the LED extinguishes.

5. Press the Quit soft key to exit the test. The LED will extinguish upon exiting the test.

6. If the LED test function does not operate correctly, replace the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

DISPL AY

The audio system incorporates a large fixed segment or dot-matrix type display. This test is performed using the

TECH 2, and directly controls all segments on the display to verify correct operation.

1. Connect TECH 2 to the DLC. Select Diagnostics / Model Year / Vehicle Model / Body / Audio System /

Miscellaneous Tests / Display.

2. Ensure that the ignition is on, and switch the audio system on.

3. Press the On soft key on the TECH 2 and verify that all display segments are illuminated.

4. Press the Off soft key on the TECH 2 and verify that all display segments extinguish.

5. Press the Quit soft key to exit the test.

6. Switch the audio system off then on again to reset the display.

7. If the Display test function does not operate correctly, replace the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

POWER (ON / OFF)

This test is performed using the TECH 2, and verifies that the audio system head unit switches on or off correctly.

1. Connect TECH 2 to the DLC. Select

Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Miscellaneous Tests /

Power (On / Off).

2. Ensure that the ignition is on, and switch the

audio system off.

3. The TECH 2 will display the current radio

status at the bottom of the screen.

4. Press the On soft key on the TECH 2 and

verify that the audio system switches on, and

that this status is reflected on the TECH 2

screen.

5. Press the Off soft key on the TECH 2 and

verify that the audio system switches off, and

that this status is reflected on the TECH 2

screen.

6. Press the Quit soft key to exit the test. The

audio system will be left in the last test position

upon exiting the test.

7. If the Power (On / Off) function does not

operate correctly, replace the audio system

head unit. Refer to 2.1 AUDIO SY STEM HE AD

UNIT in this Section.

Figure 12D-71

RADIO BAND

This test is performed using the TECH 2, and

verifies that the audio system head unit switches

correctly between the AM and the FM bands.

1. Connect TECH 2 to the DLC. Select

Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Miscellaneous Tests /

Radio Band.

2. Ensure that the ignition is on, and switch the

audio system on.

3. The TECH 2 will display the current radio band

status at the bottom of the screen.

4. Using the AM and FM soft keys on the

TECH 2, switch between the two radio bands

and verify that the audio system switches radio

bands as follows:

• AM selects AM Preset 1.

• FM selects FM1 Preset 1.

Verify that the selected band is reflected on the

TECH 2 screen.

5. Press the Quit soft key to exit the test. The

audio system head unit will be left in the last

test position upon exiting the test.

6. If the Radio Band function does not operate

correctly, replace the audio system head unit.

Refer to 2.1 AUDIO SYSTEM HEAD UNIT in

this Section.

Figure 12D-72

P R ESET MEMOR Y

NOTE: This test will not be available at the start of production, but will be introduced in a later version of software.

AUDIO

This test is performed using the TECH 2, and verifies that the audio system head unit speaker output signals are

operating correctly. The Audio test checks the Treble and Bass outputs to each speaker.

NOTE: Only the speaker configuration fitted for the vehicle will appear in the following test.

1. Connect TECH 2 to the DLC. Select Diagnostics / Model Year / Vehicle Model / Body / Audio System /

Miscellaneous Tests / Audio.

2. Ensure that the ignition is on. Switch the audio system on and choose a strong local radio station.

3. Manually adjust the volume level as requested by TECH 2 and press the Confirm soft key.

4. The Right Rear Speaker will be selected for testing. Using the Increase and Decrease soft keys, vary the bass

setting from –6 to +6 and listen for the variation.

5. Use the TECH 2 soft keys to select the other speakers and repeat the test.

6. Repeat Steps 4 and 5 for the Treble Test.

7. Press the Quit soft key to exit the test.

8. If the Audio test function does not operate correctly, replace the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

CD FUNCTION

This test is performed using the TECH 2, and verifies that the CD changes correctly between the various operating

modes.

The Next CD Mode soft key on the TECH 2 is used to step through this test. If the Previous CD Mode soft key is

used the TECH 2 will command the modes in the reverse order.

1. Connect TECH 2 to the DLC. Select

Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Miscellaneous Tests /

CD Function.

2. Ensure that the ignition is on and switch the

audio system on. Press the LOAD button on

the audio system fascia and insert a disc, or

insert a CD on a single CD player

3. Press the Next CD Mode soft key to command

the CD to play the installed disc. The current

track and CD number will be shown on

TECH 2.

VY12D079

CD Functi on

(3) 2003 VY Commodore

Au dio System

Current CD

Cur re nt Tr a ck 3

Figure 12D-73

4. Press the Next CD Mode soft key to command the CD to change the disc. The current track and CD number

will be shown on TECH 2.

NOTE: On System 1 and 2 audio head units this step will be skipped.

5. Press the Next CD Mode soft key to command the CD to change to the next track. The current track and CD

number will be shown on TECH 2.

6. Press the Next CD Mode soft key to command the CD to fast forward the current track. The current track and

CD number will be shown on TECH 2.

7. Press the Next CD Mode soft key to command the CD to fast rewind the current track. The current track and

CD number will be shown on TECH 2.

8. Press the Next CD Mode soft key to command the CD to pause the current track. The current track and CD

number will be shown on TECH 2.

9. Press the Quit soft key to exit the test.

10. If the CD function does not operate correctly, replace the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

EJECT CD

This test is performed using the TECH 2, and commands the audio system to eject a single CD or multiple CDs. It

is useful when there is a problem with the radio fascia and the EJECT button is not functioning correctly.

1. Connect TECH 2 to the DLC. Select

Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Miscellaneous Tests /

Eject CD.

2. Ensure that the ignition is on, and switch the

audio system on.

3. To eject the current CD from a CD Changer,

press the Eject Curr. CD soft key on TECH 2.

VY12D080

Eject CD

(3) 2003 VY Commodore

Au dio System

CD In Yes

Figure 12D-74

4. To eject a specific CD, press the

Eject Spec. CD soft key on the TECH 2. Enter

the CD number then press the Enter key.

5. Press the Quit soft key to exit the test.

6. If the Eject CD function does not operate

correctly, replace the audio system head unit.

Refer to 2.1 AUDIO SYSTEM HEAD UNIT in

this Section.

AUDIO SOURCE

NOTE: This test will not be available at the start of

production, but will be introduced in a later version

of software.

3.11 PROGRAM

The Program function allows various Audio System parameters to be programmed.

1. From the Body Menu select Program and

press the Enter key.

VY12D088

Body

F0:

F1:

F2:

F3:

F4:

F5:

Normal Mode

Diagnostic Trouble Codes

Data Displ ay

Snapshot

Miscellaneous Tests

Program

Figure 12D-75

2. Scroll through the Program list using the

TECH 2 Up and Down arrows. To select the

required item, press the Enter key.

VY12D064

Program

F0:

F1:

Progra m C ode I ndex

Program Antenna

Figure 12D-76

F0: PROGRAM CODE INDEX

The Code Index number identifies the audio system and vehicle configuration, and the Code Version number

identifies the software version. Only the Code Index number can be changed. The following table details the Code

Index numbers for the various models in the MY2003 VY and V2 Series vehicles.

VEHICLE AUDIO SYSTEM CODE INDEX NUMBER

Executive System 1 (Standard), System 3 (Optional) 001

Acclaim System 2 (Standard), System 3 (Optional) 001

Commodore S System 1 (Standard), System 3 (Optional) 001

Commodore SS System 3 001

CV6 Coupe System 1 (Standard), System 3 (Optional) 001

Berlina System 3 001

Lumina LS (LHD) System 1 Gulf States (Standard), System 3 Gulf

States (Optional)

002

Lumina SS (LHD) System 3 Gulf States 002

Lumina LTZ (LHD) System 3 Gulf States 002

S Coupe (LHD) System 1 Gulf States (Standard), System 3 Gulf

States (Optional)

002

Utility System 1 (Standard), System 3 (Optional) 003

Calais System 4 004

Coupe CV8 System 4 004

SS Coupe (LHD) System 4 Gulf States 005

Omega (LHD) System 4 Brazil 006

Techline

1. From the Program Menu select F0: Program

Code Index and press the Enter key.

VY12D064

Program

F0:

F1:

Progra m C ode I ndex

Program Antenna

Figure 12D-77

2. The Code Index number and the Code Version

number are displayed. To change the Code

Index number, press the Modify soft key. To

exit without making a change, press the Okay

soft key.

Figure 12D-78

3. Enter the three-digit Code Index number,

including leading zeros, using the numeral

keys on TECH 2.

4. Press the Enter key to continue, or the Exit key

to exit without making a change.

5. Follow any TECH 2 screen prompts when

programming is completed.

Figure 12D-79

F1: PROGRAM ANTENNA

Audio systems are supplied with the antenna drive

disabled and are enabled on installation. If an

antenna drive fails to operate it may not have been

enabled upon installation.

1. From the Program Menu select F1: Program

Antenna and press the Enter key.

Figure 12D-80

2. Press the Okay soft key on the TECH 2 to

enable the antenna drive.

3. Follow any TECH 2 screen prompts when

programming is completed.

Figure 12D-81

3.12 AUDIO SYSTEM DIAGNOSTIC PROCEDURES

INTRODUCTION

The following charts are designed to provide fast and efficient fault location of the audio system. Each diagnostic

chart consists of: a ‘diagnostic chart’ and pertinent information including, where appropriate, Diagnostic Trouble

Code (DTC) setting parameters and circuit diagrams.

When carrying out wiring checks as directed by the diagnostic charts, rather than probe terminals and connectors

with incorrect sized multimeter connections, use the adaptors contained in connector test adaptor kit J35616-A

(KM609). This will prevent any possibility of spreading or damaging wiring harness terminals, which may later

cause a system intermittent failure. Figure 12D-82 illustrates the various connectors associated with the audio

system.

Fuses and relays associated with the audio system are located in the instrument panel fuse and relay panel (refer

to Figure 12D-83) and engine compartment fuse and relay panel (refer to Figure 12D-84).

Before commencing any diagnostic procedure, the Diagnostic Circuit Check should be carried out to ensure a

known starting point.

Figure 12D-82

Figure 12D-83

Figure 12D-84

DIAGNOSTIC CIRCUIT CHECK

When investigating any complaint of an audio system problem or malfunction, always begin diagnosis with the

following diagnostic circuit check. This check is a preliminary procedure that ensures that the audio system is

powered up, communicating on the serial data line, helping to identify a problem or malfunction, and directing the

reader to the appropriate diagnostic chart in this Section.

With TECH 2 connected to the DLC and the ignition switched on, TECH 2 should display serial data

communication. If TECH 2 does not display serial data, the serial data circuit may be open or shorted.

The entertainment system and several other control modules are connected to the serial data line. The control

modules are the PCM, PIM (GEN III V8 only) BCM, ABS or ABS / TCS, OCC and SRS. The entertainment system

or ANY one of the control modules could cause a fault on the serial data line. This fault could result in TECH 2 not

being able to display serial data.

DIAGNOSTIC CIRCUIT CHECK DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 1. Turn the ignition to the Accessories position.

2. Switch the audio system on and select FM Mode.

Does the antenna raise (electric antenna models only)

and does the radio function correctly?

Go to Step 2. Go to Step 3.

2 1. Insert a CD, label side upwards.

Does the antenna lower (electric antenna models only)

and does the CD function correctly?

Verify problem

with customer.

Go to Step 3.

3 At Step 1 or 2, did the audio system display illuminate? Go to Step 5. Go to Step 4.

4 1. Turn the ignition off.

2. Gain access to the instrument panel fuse and relay

panel by pulling outwards on the upper edge of the

instrument panel lower trim panel to disengage the

retaining clips.

3. Check the condition of the following fuses:

PARK LAMPS / INSTRUMENTS fuse F4,

HAZARD LAMPS / ANTENNA DRIVE fuse F7,

IGNITION fuse F10,

INSTRUMENT ILLUMINATION fuse F11,

RADIO / CELLULAR PHONE fuse F16,

RADIO / CELLULAR PHONE / SATNAV fuse F23,

and

SUBWOOFER AMPLIFIER fuse F24.

Are the fuses OK?

Go to Step 5. Replace faulty

fuse.

5 1. Turn the ignition off.

2. Connect TECH 2 to the DLC.

3. Turn the ignition on.

4. Push the power button on TECH 2.

Does TECH 2 power up? (Screen should illuminate and

display TECH 2).

Go to Step 6. Go to TECH 2

diagnosis. Refer to

Section 0C,

TECH 2.

6 1. At the TECH 2 title screen press the Enter key.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System.

Does TECH 2 display Audio System Identification (ie. Part

Number)?

Confirm the details

and go to Step 7.

Go to DTC 40 No

BCM Serial Data

In this Section.

7 1. Select Diagnostic Trouble Codes / Read Current

DTC Information.

Does TECH 2 display any DTC?

Refer to

corresponding

diagnostic chart.

Refer to

DIAGNOSING

FAULTS NOT

COVERED BY

DIAGNOSTIC

TROUBLE

CODES in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DIAGNOSING FAULTS NOT COVERED BY DIAGNOSTIC TROUBLE CODES

Some of components associated with the audio system do not set a DTC in the event of a component failure. The

following diagnostic procedures are devised to assist in these cases:

• Power On / Off • Electric Antenna — Height Adjustable

• No Sound or Distorted Sound • Single CD Player

• Audio Unit Display • CD Changer

• Radio Illumination • Radio Reception

• Hands-free Telephone Unit • Subwoofer Amplifier

• Electric Antenna — Full Up / Down

POWER ON / OFF

Figure 12D-85

The audio system uses an ISO standard radio connector with integral fuse. Terminal X1-A7 is supplied with

permanent battery power via circuit 1040. Connection to vehicle ground is made on terminal X1-A8 via circuit 851.

The connector contains a blade fuse of 10 A or 15 A rating depending on the audio system fitted.

The radio has many sub-circuits that can only operate properly when the battery voltage is above 9 V. When the

voltage drops below 9 V, for example during engine starting, the radio will turn-off to prevent unexpected operation.

The radio can request the accessories line to turn on even after the ignition is turned off and the key removed. To

do this, press the ON button. The accessories line will operate for approximately 1 hour, then will turn off unless the

radio is turned on once more.

POWER ON / OFF DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic Circuit

Check

in this Section.

2 1. Ensure that the ignition switch is in the Off position.

Is the clock visible on the display and does the Security

LED flash?

Go to Step 3. Go to Step 4.

3 1. Switch the audio system on.

Does the radio turn on and operate correctly?

Go to Step 11. Go to Step 4.

4 1. Check for uneven gaps around the unit and trim.

Is unit properly located in the console?

Go to Step 6. Go to Step 5.

5 1. Push the unit into the console using firm pressure

applied over the removal tool holes.

Is the problem rectified?

End of

diagnostics. Unit

not installed

correctly.

Go to Step 6.

6 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital multimeter, measure the power

supply voltage, circuit 1040 (Orange / Black wire),

between radio connector A133, terminal X1-A7 and

a known good ground.

Is the value as specified?

Within 0.5 V

of battery

voltage, and

above 9.0 V

Go to Step 8. Go to Step 7

7 1. Check the condition of the RADIO fuse F23, located

on the instrument panel fuse and relay panel.

Replace if necessary.

2. Check connectors for terminal retention. Repair if

necessary.

3. Install the audio system head unit (refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section)

and check operation in radio and CD modes.

Does the unit operate correctly?

End of

diagnostics.

Go to Step 8.

8 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Remove fuse F23 from the instrument panel fuse

and relay panel.

3. Using a digital ohmmeter, check continuity of the

power supply, circuit 1040 (Orange / Black wire),

between fuse holder and radio connector A133,

terminal X1-A7.

Is the value as specified?

Less than

1 ohm

Go to Step 9. Repair faulty

circuit 1040.

9 1. Using a digital ohmmeter, check continuity of the

ground connection, circuit 851 (Black / White wire),

between radio connector A133, terminal X1-A8 and

a known good ground.

Is the value as specified?

Less than

1 ohm

Go to Step 10. Repair faulty

circuit 851.

10 1. Using a digital ohmmeter, check the continuity of

the fuse located on the connector at the rear of the

audio system head unit.

Is the value as specified?

Less than

1 ohm

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Replace fuse.

11 1. Install the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Turn the ignition to the Accessories position.

3. Switch the audio system on.

4. Turn the ignition off and open the driver’s door.

Does the audio system also turn off?

Confirm fault with

customer. Go to Step 12.

STEP ACTION VALUE YES NO

12 1. Check the condition of the IGNITION fuse F10 and

the RADIO / CELLULAR PHONE fuse F16 on the

instrument panel fuse and relay panel.

Are the fuses OK?

Go to Step 13. Replace fuses as

appropriate.

13 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Connect a digital voltmeter between the

Accessories voltage input, circuit 43 (Yellow wire),

at radio connector A133, terminal X1-A4 and a

known good ground.

3. Check the Accessories voltage while turning the

ignition between the Off position and the

Accessories position.

Does the voltage appear at the Accessories position?

Battery

voltage

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Repair faulty

circuit 43.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

NO SOUND OR DISTORTED SOUND

Figure 12D-86

Figure 12D-87

The Audio Systems fitted to the MY2003 VY and V2 Series vehicles have modern amplifiers that deliver high power

and are internally protected against short circuits and connection to voltage sources.

Level 3 model vehicles feature a high power 4 x 30 W RMS amplifier that drives 2 ohm speakers in the doors and

tweeters in the instrument panel. Two subwoofers drive by a separate 2 x 40 W RMS amplifier are fitted to the

parcel shelf to increase the frequency response of the system. Other models have 4 x 20 W RMS amplifiers.

Speakers in these vehicles are 4 ohms for the doors and 2 ohms for the tweeters. The speaker circuit for Sedans

and Wagons is illustrated if Figure 12D-86, while the circuit for Utilities and Coupe models is illustrated in

Figure 12D-87.

All Audio Systems have a Distortion Limiting circuit. This circuit, when turned on, automatically limits the volume

level to the point where distortion begins. The amount of distortion will depend on the amount of bass in the music.

Listeners who find that the music does not play loud enough with the distortion limiting circuit activated can either:

• reduce the amount of bass, or

• turn the distortion limiting off using the instrument cluster MFD (refer to Section 12C, 1.8 CUSTOMISATION

MODE — AUDIO DISTORTION LIMITING).

Damaged speakers and wiring may not cause a failure when played at low volume levels. At low volume the

amplifier may cope with the additional load caused by the damage. Problems may only become obvious when

playing at loud volume levels. Typical symptoms will be

• one speaker dropping out,

• two speakers dropping out, or

• all speakers dropping out.

When the amplifier has cooled, the output may resume from the affected speaker or speakers.

NO SOUND OR DISTORTED SOUND DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic

Circuit Check

in this Section.

2 1. Turn the ignition to the Accessories position.

2. Switch the audio system on and set the volume at

medium level.

3. Play a CD.

Does the audio system turn on and seem normal apart

from no sound or distorted sound?

Go to Step 3. Go to Power On /

Off Diagnostic

Chart in this

Section.

3 1. Set EQ to OFF, and Bass, Treble, Fader and

Balance to STD.

2. Use the Fader and Balance settings to check that

each speaker is operating, including the instrument

panel tweeters and rear parcel shelf subwoofers (if

fitted).

Is no sound or distortion from one speaker only?

Go to Step 4. Go to Step 10.

4 1. Set Fader and Balance to STD.

2. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

3. Using a digital ohmmeter, check the resistance of

the defective speaker circuit at radio connector

A133:

• Left Front – X1-B5 and X1-B6

• Left Rear – X1-B7 and X1-B8

• Right Front – X1-B3 and X1-B4

• Right Rear – X1-B1 and X1-B2

Is the value as specified?

Between

2 ohms and

4 ohms

Go to Step 10. Go to Step 5.

5 1. Remove the defective speaker. Refer to

2. SERVICE OPERATIONS in this Section.

2. Inspect the speaker for damage or foreign material.

Do the speaker terminals appear damaged?

Remove foreign

material. Replace

speaker if

damaged. Refer

to 2. SERVICE

OPERATIONS in

this Section.

Go to Step 6.

6 Has the speaker or speaker terminals been making

contact with body metal components?

Rectify reason

for contact.

Install speaker.

Go to Step 7.

7 1. Using a digital ohmmeter, check the resistance

across the speaker terminals.

Is the value as specified?

Between

2 ohms and

4 ohms

Go to Step 8. Replace

speaker. Refer to

2. SERVICE

OPERATIONS in

this Section.

STEP ACTION VALUE YES NO

8 1. Using a digital ohmmeter, check for continuity

between each of the speaker circuits at radio

connector A133, and a known good ground:

• Left Front – X1-B5, circuit 201 (Tan wire)

• Left Front – X1-B6, circuit 118 (Grey wire)

• Left Rear – X1-B7, circuit 199 (Brown / Black

wire)

• Left Rear – X1-B8, circuit 116 (Yellow / Blue

wire)

• Right Front – X1-B3, circuit 200 (Light-green

wire)

• Right Front – X1-B4, circuit 117 (Green wire)

• Right Rear – X1-B1, circuit 46 (Blue / Orange

wire)

• Right Rear – X1-B2, circuit 115 (Blue / Black

wire)

Is any circuit shorted to ground?

Repair defective

circuit.

Go to Step 9.

9 1. Using a digital voltmeter, check for voltage between

each of the speaker circuits at radio connector

A133, and a known good ground:

• Left Front – X1-B5, circuit 201 (Tan wire)

• Left Front – X1-B6, circuit 118 (Grey wire)

• Left Rear – X1-B7, circuit 199 (Brown / Black

wire)

• Left Rear – X1-B8, circuit 116 (Yellow / Blue

wire)

• Right Front – X1-B3, circuit 200 (Light-green

wire)

• Right Front – X1-B4, circuit 117 (Green wire)

• Right Rear – X1-B1, circuit 46 (Blue / Orange

wire)

• Right Rear – X1-B2, circuit 115 (Blue / Black

wire)

Is voltage indicated at any circuit?

0 volts Repair defective

circuit.

Go to Step 10.

10 1. Using a digital ohmmeter, check the resistance

between radio connector A133, terminal X1-A8,

circuit 851 (Black / White wire) and body ground.

Is the value as specified?

Less than

1 ohm

Go to Step 11. Repair defective

circuit 851.

11 1. Install the audio system head unit (refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section),

and any speakers.

2. Turn the ignition to the Accessories position.

3. Switch the audio system on and play a CD.

4. Increase the volume to a loud level.

5. Allow the audio system to play for 5 minutes.

Has the problem appeared?

Go to Step 12. Confirm fault with

customer.

12 1. Allow the audio system to cool.

2. Using the Fader and balance settings, repeat

Step 11 for the front and rear / left and right

speakers.

Has the test found one speaker to be the cause?

Go to Step 13. Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

STEP ACTION VALUE YES NO

13 1. Replace the defective speaker. Refer to

2. SERVICE OPERATIONS in this Section.

Is the problem rectified?

End of

diagnostics.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

AUDIO UNIT DISPLAY

The audio system head unit is fitted with a large display on the fascia. There are two types of display fitted

depending on the radio type. Standard units have a fixed character display and the luxury version (Level 3 model

vehicles) has a dot-matrix display.

Both displays are fully illuminated when the ignition is in the Accessories position or the radio is on. When the park

lamps are on, the brightness can be adjusted.

AUDIO UNIT DISPLAY DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic

Circuit Check

in this Section.

2 1. Turn the audio system on and select an FM station.

Is the display easily readable with good contrast

between the displayed characters and the background?

NOTE: During periods of low temperature, the display

characters may take longer to change when changes

are made to the audio system selection.

Go to Step 3. Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

3 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Miscellaneous Tests /

Display.

3. Press the On soft key on the TECH 2.

Do all segments on the display illuminate?

Go to Step 4. Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

4 1. Press the Off soft key on the TECH 2.

Do all segments on the display extinguish?

Confirm fault with

customer.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

RADIO ILLUMINATION

Figure 12D-88

The radio has full night illumination for easy operation. With the accessories and ignition turned on, the display is

illuminated to make the clock easy to read. When the park lamps are turned on the display and buttons are fully

illuminated. The radio uses two signals to determine the illumination state:

• Park lamps switch to determine if illumination should be off or on.

• Dimming value from the vehicle serial communication bus to determine the illumination brightness.

Testing the operation of illumination functions will be easier if the vehicle is in a darkened area.

RADIO IL LUMINATION DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic

Circuit Check

in this Section.

2 1. Turn the ignition to the Accessories position.

2. Switch the audio system on.

3. Turn the headlamp switch to the Park position.

Does the audio system display illuminate evenly?

Go to Step 6. Go to Step 3.

3 Does every control button illuminate? Go to Step 6. Go to Step 4.

4 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Data Display / Data List.

3. Scroll to Park Lamp Switch in the TECH 2 menu.

4. Using the headlamp switch, turn the park lamps off

and on.

Does TECH 2 display OFF when the park lamps are

switched off, and ON when the park lamps are switched

on?

Go to Step 6. Go to Step 5.

STEP ACTION VALUE YES NO

5 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital voltmeter, check the voltage at radio

connector A133 between terminal X1-A6, circuit 32

(Brown / White wire) and a known good ground.

Is the value as specified?

Within 0.5 V

of battery

voltage

when park

lamps are

turned on

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Repair faulty

circuit 32.

6 1. Adjust the instrument dimming switch between

maximum and minimum brightness.

Does the unit illumination go to maximum and minimum

brightness also?

Confirm fault with

customer.

Go to Step 7.

7 1. On TECH 2, select Diagnostics / Model Year /

Vehicle Model / Body / Body Control Module /

Normal Mode.

2. Scroll to Instrument Lamps in the TECH 2 menu.

Is the dimming percentage message broadcast onto the

bus correctly?

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Refer to

Section 12J, 4.14

INSTRUMENT

DIMMING

CONTROL for

further

diagnostics.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

HANDS-FREE TELEPHONE INPUT

The Audio System has an electrical interface for a mobile telephone hands-free kit that may be used to:

• Mute the radio when a phone call is in progress.

• Play the caller’s voice through the car speakers instead of the hands-free speaker.

Using this circuit has the advantage of automatically silencing the radio or CD so the telephone can be heard

without distraction, and playing the voice through a higher power, higher quality sound system. When the voice is

played through the audio system the volume, bass and treble can be set to the best listening levels. The

Independent Tone Memory will always recall these settings when a phone call is received.

When the hands-free controller grounds the audio system mute input on terminal X1-A3, the audio system

automatically switches to Phone Mode, which is confirmed by the display showing ‘VOICE IN’. When in Phone

Mode the audio system switches to the telephone input lines on terminals X1-C8 and X1-C7. Any signal at those

inputs will be played through the audio amplifier and vehicle speakers. The inputs are high impedance, differential

type that accept a wide range of inputs from the majority of phone kits on the market. Connect the hands-free kit

speaker lines direct to these terminals, do not connect the hands-free speaker.

NOTE: Mobile phone signal quality can vary greatly affecting the quality of the sound through the speaker. When

diagnosing phone type problems it is recommended to move the vehicle to an area that has a strong signal.

Figure 12D-89 illustrates the hands-free connection for a system without Telematics, and Figure 12D-90 illustrates

the circuit with Telematics fitted.

Diagnostics — Without Telematics

Figure 12D-89

HANDS-FREE TELEPHON E INPUT DIAGNOSTIC CHART — WITHOUT TELEMATICS

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic

Circuit Check

in this Section.

STEP ACTION VALUE YES NO

2 1. Turn the ignition on.

2. Switch the audio system on.

3. Place the mobile phone in the vehicle kit and make

a call.

Does the audio system switch to VOICE IN mode?

Go to Step 11. Go to Step 3.

3 1. Switch the audio system and ignition off.

2. Access the phone kit wiring. Refer to Section 12G,

CELLULAR PHONE.

3. Check all phone connections for terminal retention

and that the connector is correctly located.

Are connections OK?

Go to Step 4. Repair faulty

connection.

4 1. Turn the ignition on.

2. Switch the audio system on.

3. Connect a digital voltmeter between the mute line at

the in-line connector A155 terminal X1-4, circuit

5211 Yellow / Black wire) and a known good

ground.

Is the value as specified?

10 V or

greater

Leave the

multimeter

connected. Go to

Step 7.

Go to Step 5.

5 1. Disconnect the phone kit wiring. Refer to

Section 12G, CELLULAR PHONE.

2. Switch the audio system on.

3. Connect a digital voltmeter between the mute line at

the in-line connector A155 terminal X1-4, circuit

5211 Yellow / Black wire) and a known good

ground.

Is the value as specified?

10 V or

greater

Go to Step 6. Go to Step 10.

6 1. Check that the mute line is correctly connected to

the phone kit.

2. Check that the voice signal and return lines are

correctly connected to the phone kit.

Are all connections OK?

Go to Step 7. Repair faulty

circuit.

7 1. With the phone installed in the vehicle kit, make a

phone call.

Is the value as specified?

Less than

1 V

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Go to Step 8.

8 1. Check that the mute line is correctly connected to

the phone kit.

2. Check that the voice signal and return lines are

correctly connected to the phone kit.

Are all connections OK?

Go to Step 9. Repair faulty

circuit.

9 1. Connect the mute line to a known good ground.

Does the audio system switch to VOICE IN mode?

Repair faulty

hands-free kit.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

10 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital ohmmeter, check the continuity of

the mute line, circuit 5211 (Yellow / Black wire),

between radio connector A133 terminal X1-A3, and

the mute line in-line connector A155 terminal X1-4.

Is the value as specified?

Continuity Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Repair faulty

circuit.

STEP ACTION VALUE YES NO

11 1. Adjust the phone volume and audio system volume

to approximately 50% while the call is in progress.

Does the caller’s voice play through the audio system

speakers?

Go to Step 15. Go to Step 12.

12 1. At the hands-free kit wiring, check that the speaker

+ wire is connected to circuit 655 (Blue / Black wire)

and the – wire is connected to circuit 2506 (Blue

wire).

Are the speaker wires connected correctly?

Go to Step 13. Correct wiring

connection.

13 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Disconnect the phone kit wiring. Refer to

Section 12G, CELLULAR PHONE.

3. Using a digital ohmmeter, check the continuity of

the voice signal line, circuit 655 (Blue / Black wire),

between radio connector A133 terminal X1-C7 and

the in-line connector A155 terminal X1-5.

4. Using a digital ohmmeter, check the continuity of

the voice signal return line, circuit 2506 (Blue wire),

between radio connector A133 terminal X1-C8 and

the in-line connector A155 terminal X1-6.

Is the value as specified?

Continuity Go to Step 14. Repair faulty

circuit.

14 1. Disconnect circuit 655 and circuit 2506 and connect

a hands-free type speaker to the hands-free

controller.

Is the problem as rectified?

Permanently

installed speaker.

Audio system

cannot accept

this type of input.

Refer to Hands-

free Kit

manufacturer.

15 1. Ensure that the phone volume and the audio

system volume are set at approximately 50%. If

either is set too high or too low, then the sound

quality may be distorted or feedback may be heard.

Is the voice clear, with no distortion?

Go to Step 16. Adjust phone

and radio

volume, radio

bass and treble

until clear sound

is produced.

16 Can digital type noise be heard when a phone call is

being made.

Ensure that an

antenna system

is connected to

the phone kit and

that all

connections are

tight.

Confirm

complaint with

customer

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

Diagnostics — With Telematics

Figure 12D-90

HANDS-FREE TELEPHONE INPUT DIAGNOSTIC CHART — WITH TELEMATICS

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic

Circuit Check

in this Section.

2 1. Turn the ignition on.

2. Switch the audio system on.

3. Place the mobile phone in the vehicle kit and make

a call.

Does the audio system switch to VOICE IN mode?

Go to Step 12. Go to Step 3.

3 1. Switch the audio system and ignition off.

2. Access the phone kit wiring. Refer to Section 12G,

CELLULAR PHONE.

3. Check all phone connections for terminal retention

and that the connector is correctly located.

Are connections OK?

Go to Step 4. Repair faulty

connection.

4 1. Turn the ignition on.

2. Switch the audio system on.

3. Connect a digital voltmeter between the mute line at

the in-line connector A155 terminal X1-4, circuit 693

Yellow wire) and a known good ground.

Is the value as specified?

10 V or

greater

Leave the

multimeter

connected. Go to

Step 7.

Go to Step 5.

STEP ACTION VALUE YES NO

5 1. Disconnect the phone kit wiring. Refer to

Section 12G, CELLULAR PHONE.

2. Switch the audio system on.

3. Connect a digital voltmeter between the mute line at

the in-line connector A155 terminal X1-4, circuit 693

Yellow wire) and a known good ground.

Is the value as specified?

10 V or

greater

Go to Step 6. Go to Step 10.

6 1. Check that the mute line is correctly connected to

the phone kit.

2. Check that the voice signal and return lines are

correctly connected to the phone kit.

Are all connections OK?

Go to Step 7. Repair faulty

circuit.

7 1. With the phone installed in the vehicle kit, make a

phone call.

Is the value as specified?

Less than

1 V

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Go to Step 8.

8 1. Check that the mute line is correctly connected to

the phone kit.

2. Check that the voice signal and return lines are

correctly connected to the phone kit.

Are all connections OK?

Go to Step 9. Repair faulty

circuit.

9 1. Connect the mute line to a known good ground.

Does the audio system switch to VOICE IN mode?

Repair faulty

hands-free kit.

Refer to

Section 12K,

TELEMATICS for

further diagnosis.

10 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital ohmmeter, check the continuity of

the mute line, circuit 5211 (Yellow / Black wire),

between radio connector A133 terminal X1-A3, and

the telematics transceiver connector A158 terminal

X2-6.

Is the value as specified?

Continuity Go to Step 11. Repair faulty

circuit 5211.

11 1. Using a digital ohmmeter, check the continuity of

the mute line, circuit 693 (Yellow wire), between

telematics transceiver connector A158 terminal

X2-12 and the in-line connector A155 terminal X1-4.

Is the value as specified?

Continuity Refer to

Section 12K,

TELEMATICS for

further diagnosis.

Repair faulty

circuit 693.

12 1. Adjust the phone volume and audio system volume

to approximately 50% while the call is in progress.

Does the caller’s voice play through the audio system

speakers?

Go to Step 16. Go to Step 13.

13 1. At the hands-free kit wiring, check that the speaker

+ wire is connected to circuit 658 (Grey wire) and

the – wire is connected to circuit 659 (Dark-green

wire).

Are the speaker wires connected correctly?

Go to Step 14. Correct wiring

connection.

STEP ACTION VALUE YES NO

14 1. Disconnect the telematics. Refer to Section 12K,

TELEMATICS.

2. Disconnect the phone kit wiring. Refer to

Section 12G, CELLULAR PHONE.

3. Using a digital ohmmeter, check the continuity of

the voice signal line, circuit 658 (Grey wire),

between telematics connector A158 terminal X1-6

and the in-line connector A155 terminal X1-5.

4. Using a digital ohmmeter, check the continuity of

the voice signal return line, circuit 659 (Dark-green

wire), between telematics connector A158 terminal

X1-5 and the in-line connector A155 terminal X1-6.

Is the value as specified?

Continuity Go to Step 15. Repair faulty

circuit.

15 1. Using a digital ohmmeter, check the continuity of

the voice signal line, circuit 655 (Blue / Black wire),

between telematics connector A158 terminal X1-10

and radio connector A133 terminal X1-C7.

2. Using a digital ohmmeter, check the continuity of

the voice signal return line, circuit 2506 (Blue wire),

between telematics connector A158 terminal X1-9

and radio connector A133 terminal X1-C8.

Is the value as specified?

Continuity Install a known

good audio

system head unit

and check

operation. If fault

still persists,

install old audio

system and refer

to Section 12K,

TELEMATICS for

further diagnosis.

Repair faulty

circuit.

16 1. Ensure that the phone volume and the audio

system volume are set at approximately 50%. If

either is set too high or too low, then the sound

quality may be distorted or feedback may be heard.

Is the voice clear, with no distortion?

Go to Step 17. Adjust phone

and radio

volume, radio

bass and treble

until clear sound

is produced.

17 Can digital type noise be heard when a phone call is

being made.

Ensure that an

antenna system

is connected to

the phone kit and

that all

connections are

tight.

Confirm

complaint with

customer

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

ELECTRIC ANTENNA — FULL UP / DOWN

Figure 12D-91

Some models are fitted with a non-adjustable, fully up or down electric antenna system. In these vehicles when the

audio system is in Radio Mode the electric antenna is fully raised. The antenna is retracted when the audio system

is in CD Mode, or turned off.

Battery voltage is applied at all times to the antenna motor via connector W6, terminal X1-A (circuit 1040), which is

protected by the RADIO fuse F23. Antenna operation is controlled from the audio system by the Radio On signal,

circuit 314, which controls the internal antenna control relay via connector W6, terminal X1-B (circuit 314).

New Audio Systems are delivered with the antenna system disabled. This is to prevent the antenna raising and

potentially becoming damaged in the Assembly Plant. As the vehicle passes through final testing the antenna drive

is enabled and will remain enabled thereafter. In the event of an antenna system not functioning, verify that the

antenna system has been programmed correctly using TECH 2 (refer to 3. 11 PR O G R AM in this Section).

FULL UP / DOWN ELECTRIC ANTENNA DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to Diagnostic

Circuit Check in

this Section.

2 1. Turn the audio system on.

2. Switch between Radio Mode and CD Mode (it may

be necessary to insert a CD).

Does the power antenna extend in Radio Mode and

retract in CD Mode?

Go to Step 14. Go to Step 3.

3 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Data Display / Data List.

3. Scroll to Antenna Up in the TECH 2 menu.

4. Ensure that the audio system is turned on.

5. Switch between Radio Mode and CD Mode (it may

be necessary to insert a CD).

Does TECH 2 display REQUIRED in Radio Mode, and

NOT REQUIRED in CD Mode?

Go to Step 4. Enable the

antenna drive

using TECH 2.

Refer to

3.11 PROGRAM

in this Section.

4 1. Remove the passenger’s side fender inner liner to

gain access to the antenna motor. Refer to

Section 1A1, 3.1 FRONT WHEELHOUSE LINER.

2. Check that the antenna is mounted correctly and

that all bolts and electrical connections are tight.

3. Check that the head of the antenna is visible

through the bezel on the fender and is not snagged

on the fender.

4. Check that the antenna mast is straight and not

jammed within the housing.

Are all checks OK?

Go to Step 5. Repair or replace

the antenna.

Refer to

2.9 POWER

ANTENNA in this

Section.

5 1. Connect a digital voltmeter between the power

antenna connector W6 terminal X1-A, circuit 1040

(Green wire) and a known good ground.

Is the value as specified?

Battery

voltage

Go to Step 8. Go to Step 6.

6 1. Disconnect the main wiring harness to body wiring

harness connector X201 (located above the BCM).

2. Using a digital ohmmeter, check for continuity of

circuit 1040 (Green wire), between power antenna

connector W6 terminal X1-A, and harness

connector X201, terminal B12.

Is the value as specified?

Continuity Go to Step 7. Repair faulty

circuit.

7 1. Gain access the instrument panel fuse and relay

panel by pulling outwards on the upper edge of the

instrument panel lower trim panel to disengage the

retaining clips.

2. Remove the RADIO fuse F23 from the instrument

panel fuse and relay panel.

3. Using a digital ohmmeter, check for continuity of

circuit 1040 (Orange / Black wire), between harness

connector X201, terminal B12, and the output side

of fuse F23.

Is the value as specified?

Continuity Check condition

of fuse and fuse

holder and repair

as necessary.

Repair faulty

circuit.

8 1. Connect a digital voltmeter between the power

antenna connector W6 terminal X1-B, circuit 314

(Grey wire) and a known good ground.

2. Switch the audio system on and select FM Mode.

Note the voltage indication.

3. Switch the audio system off and note the voltage

indication.

Is the value as specified?

Radio Mode

= 10 V or

greater

Off = 0 V

Go to Step 13. Got to Step 9.

STEP ACTION VALUE YES NO

9 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital ohmmeter, check for continuity of

circuit 314 (Grey wire), between power antenna

connector W6 terminal X1-B, and radio connector

A133, terminal X1-A5.

Is the value as specified?

Continuity Go to Step 10. Go to Step 11.

10 1. Ensure that Step 2 was completed.

Is the Antenna Drive enabled?

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Complete Step 2

and test again.

11 1. Disconnect the main wiring harness to body wiring

harness connector X201 (located above the BCM).

2. Using a digital ohmmeter, check for continuity of

circuit 314 (Yellow / Red wire), between harness

connector X201, terminal B1, and radio connector

A133 terminal X1-A5.

Is the value as specified?

Continuity Go to Step 12. Repair faulty

circuit.

12 1. Using a digital ohmmeter, check for continuity of

circuit 314 (Grey wire), between harness connector

X201, terminal B1, and power antenna connector

W6 terminal X1-B.

Is the value as specified?

Continuity Confirm fault with

customer.

Repair faulty

circuit.

13 1. Using a digital ohmmeter, check the resistance

between the body of the antenna motor and a

known good ground.

Is the value as specified?

Continuity Replace the

antenna. Refer to

2.9 POWER

ANTENNA in this

Section.

Repair faulty

antenna ground

circuit. Check all

attachment bolts

for tightness.

14 Does the antenna raise and lower smoothly and fully? Confirm fault with

customer.

Go to Step 15.

15 1. Clean the antenna mast.

Does the antenna raise and lower smoothly and fully?

Confirm the

repair.

Replace the

antenna. Refer to

2.9 POWER

ANTENNA in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

ELE CTRIC ANTEN NA — HE IGHT ADJU STABL E

Figure 12D-92

Some models are fitted with an adjustable height electric antenna system. In these vehicles the audio system has

up and down antenna buttons fitted. While in Radio Mode these buttons are used to raise or lower the antenna to a

height that suits the user. In CD Mode the buttons have no effect.

The adjustable height antenna is under direct control of the BCM. The audio system Radio On signal on circuit 314

is applied to the BCM on terminal X3-10 and, together with information on the serial data bus, instructs the BCM to

raise or lower the antenna. Antenna motor power is supplied via the BCM (terminal X4-23) and is applied to the

antenna connector W6 terminal X1-A (circuit 160). Antenna direction control is also controlled by the BCM (terminal

X4-7) and is applied to the antenna connector W6 terminal X1-B (circuit 161).

New Audio Systems are delivered with the antenna system disabled. This is to prevent the antenna raising and

potentially becoming damaged in the Assembly Plant. As the vehicle passes through final testing the antenna drive

is enabled and will remain enabled thereafter. In the event of an antenna system not functioning, verify that the

antenna system has been programmed correctly using TECH 2 (refer to 3. 11 PR O G R AM in this Section).

HEIGHT ADJUSTABLE ELECTRIC ANTENNA DIAGNOSTIC CH ART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic Circuit

Check

in this Section.

2 1. Turn the audio system on.

2. Switch between Radio Mode and CD Mode (it may

be necessary to insert a CD).

Does the power antenna extend in Radio Mode and

retract in CD Mode?

Go to Step 15. Go to Step 3.

3 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Data Display / Data List.

3. Scroll to Antenna Up in the TECH 2 menu.

4. Ensure that the audio system is turned on.

5. Switch between Radio Mode and CD Mode (it may

be necessary to insert a CD).

Does TECH 2 display REQUIRED in Radio Mode, and

NOT REQUIRED in CD Mode?

Go to Step 4. Enable the

antenna drive

using TECH 2.

Refer to

3.11 PROGRAM

in this Section.

4 1. Select Diagnostics / Model Year / Vehicle Model /

Body / Body Control Module / Data Display / Inputs

and Outputs.

2. Scroll to Radio Status in the TECH 2 menu.

3. Switch between Radio Mode and CD Mode (it may

be necessary to insert a CD).

Does TECH 2 display ON in Radio Mode, and OFF in

CD Mode?

Go to Step 7. Go to Step 5.

5 1. Gain access to the BCM. Refer to Section 12J,

2.1 BODY CONTROL MODULE.

2. Connect a digital voltmeter between BCM module

A15 connector X3-10, circuit 314 (Yellow / Red

wire), and a known good ground.

3. Switch the audio head unit on and select FM Mode.

Note the voltage indication.

4. Switch the audio head unit off and note the voltage

indication.

Is the value as specified?

Radio Mode

= 10 V or

greater

Off = 0 V

Refer to

Section 12J,

4.18 POWER

ANTENNA

CONTROL for

further

diagnostics.

Go to Step 6.

6 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Check for continuity of circuit 314 (Yellow / Red

wire) between the audio system head unit P133

connector X1-A5 and BCM module A15 connector

X3-10, using an ohmmeter to back probe the

connectors.

Is the value as specified?

Continuity Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Repair faulty

circuit.

7 1. On TECH 2, select Diagnostics / Model Year /

Vehicle Model / Body / Body Control Module / Data

Display / Inputs and Outputs.

2. Scroll to Radio Status in the TECH 2 menu.

3. Turn the audio system on and select FM Mode.

4. Alternately press the Antenna Up and Down buttons

on the audio system fascia.

Does TECH 2 display Antenna UP and DOWN as

required?

Go to Step 8. Refer to Fascia

Button Jammed

diagnosis in this

Section.

STEP ACTION VALUE YES NO

8 1. On TECH 2, select Diagnostics / Model Year /

Vehicle Model / Body / Body Control Module /

Miscellaneous Tests.

2. Scroll to Antenna in the TECH 2 menu and press

the Enter key.

3. Follow the test precondition prompts as detailed on

the TECH 2 screen.

4. Raise and lower the antenna using the TECH 2 UP

and DOWN soft keys.

Does the antenna operate correctly?

Refer to

Section 12J,

4.18 POWER

ANTENNA

CONTROL for

further

diagnostics.

Go to Step 9.

9 1. Remove the passenger’s side fender inner liner to

gain access to the antenna motor. Refer to

Section 1A1, 3.1 FRONT WHEELHOUSE LINER.

2. Check that the antenna is mounted correctly and

that all bolts and electrical connections are tight.

3. Check that the head of the antenna is visible

through the bezel on the fender and is not snagged

on the fender.

4. Check that the antenna mast is straight and not

jammed within the housing.

Are all checks OK?

Go to Step 10. Repair or replace

the antenna.

Refer to

2.9 POWER

ANTENNA in this

Section.

10 1. Connect a digital voltmeter between power antenna

connector W6 terminal X1-A, circuit 160 (Green

wire), and a known good ground.

2. Turn the audio system on.

3. Using the Antenna Up and Down switches on the

audio system front fascia, raise and lower the

antenna.

Is the value as specified?

Battery

voltage

while raising

or lowering

the antenna

0 V at all

other times

Go to Step 12. Go to Step 11.

11 1. Gain access to the BCM. Refer to Section 12J,

2.1 BODY CONTROL MODULE.

2. Connect a digital voltmeter between BCM module

A15 connector X4-23, circuit 160 (Green wire), and

a known good ground.

3. Turn the ignition on.

4. Switch the audio system on and select FM Mode.

Note the voltage indication.

5. Using the Antenna Up and Down switches on the

audio system front fascia, raise and lower the

antenna.

Is the value as specified?

Battery

voltage

while raising

or lowering

the antenna

0 V at all

other times

Repair faulty

circuit.

Refer to

Section 12J,

4.18 POWER

ANTENNA

CONTROL for

further

diagnostics.

12 1. Connect a digital voltmeter between the power

antenna connector W6 terminal X1-B, circuit 161

(Grey wire) and a known good ground.

2. Switch the audio system on and select FM Mode.

Note the voltage indication.

3. Using the Antenna Up and Down switches on the

audio system front fascia, raise and lower the

antenna.

Is the value as specified?

Battery

voltage

while raising

or lowering

the antenna

0 V at all

other times

Go to Step 14. Go to Step 13.

13 1. Connect a digital voltmeter between BCM module

A15 connector X4-7, circuit 161 (Grey wire), and a

known good ground.

2. Turn the ignition on.

3. Switch the audio system on and select FM Mode.

Note the voltage indication.

4. Switch the audio system off and note the voltage

indication.

Is the value as specified?

Radio Mode

= 10 V or

greater

Off = 0 V

Repair faulty

circuit.

Refer to

Section 12J,

4.18 POWER

ANTENNA

CONTROL for

further

diagnostics.

STEP ACTION VALUE YES NO

14 1. Gain access to the antenna motor.

2. Using a digital multimeter, check the resistance

between the body of the power antenna motor and

a known good ground.

Is the value as specified?

Continuity Replace the

antenna. Refer to

2.9 POWER

ANTENNA in this

Section.

Repair the

antenna ground

circuit.

15 Does the antenna raise and lower smoothly and fully? Confirm fault with

customer.

Go to Step 16.

16 1. Clean the antenna mast.

Does the antenna raise and lower smoothly and fully?

Confirm the

repair.

Replace the

antenna. Refer to

2.9 POWER

ANTENNA in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

SINGLE CD PLAY ER

The System 1 and System 2 audio systems feature a single CD player. The CD is inserted into the CD player

through the slot on the fascia above the display. Unlike the models with CD Changer, the CD is loaded by pushing

it into the CD slot until the mechanism senses the CD and automatically loads it into the playing position.

The CD player will play all commercially recorded 120 mm music CDs, and most CDRs that have been recorded

using good quality CD Writers. CD-RWs may not play satisfactorily.

The CD Player will not play non-standard sized CDs, eg 80 mm CDs. Using CDs smaller than 120 mm without an

adaptor may result in damage to the CD, CD player or both.

Foreign objects, eg credit cards, placed in the CD slot will prevent loading and unloading of CDs.

Loading two CDs at once will jam the mechanism.

The CD Player cannot decode files recorded in compressed format, eg MP3.

CDs should not have labels attached to them. The label may peel off or buckle due to heat and rub or jam the CD

mechanism. Damage caused by these labels is not covered under warranty.

The CD mechanism is a high quality unit with mechanical shock absorbers. There is no electronic anti-skip memory

buffer fitted, therefore the CD player may skip when given a sharp jolt, for example hitting a large pothole while

driving. Under normal circumstances the CD player will resume playback within 1 second of the shock. No damage

to the CD mechanism or CD should occur during the skip.

NOTE: CD DOES NOT EJECT In cases where fascia button damage or no operation prevents a customer’s CD

from being ejected, use the TECH 2 to remove the CD prior to returning the unit for repair (refer to

3.10 MISCELLANEOUS TESTS in this Section). Where this is not possible and the unit is returned for repair with a

customer’s CD trapped inside, attach a note to the Exchange Request form detailing:

• Name of CD (for example Carmina Burana).

• Owner’s name.

• Owner’s mailing address, or Holden Dealer’s address – if CD is to be returned to the customer by the Holden

Dealer.

• Contact name and telephone number within the Holden Dealer.

IMPORTANT: It is recommended that the audio system head unit does not contain a CD when being removed or

installed. Under some circumstances, a CD may become dislodged it the unit is treated roughly during removal or

installation.

SINGLE CD PL AYER DIAGNOST IC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic

Circuit Check

in this Section.

2 1. Turn on the audio system, select Radio Mode and

tune to a strong station.

Does the system work as expected in Radio Mode?

Go to Step 3. Diagnose other

system related

problems first.

3 1. Switch to CD Mode.

2. Load a CD (if necessary), label facing upwards.

3. Eject the CD.

Does CD load and eject smoothly and quietly?

Go to Step 4. Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

4 1. Load the CD, label facing upwards.

Does the CD play correctly without interruption?

NOTE: Verify the CD plays correctly on another unit

before deciding to replace the CD player.

Go to Step 5. Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

5 1. With the CD playing, test drive the vehicle and note

if the CD skips over average road surfaces.

Is the performance as expected?

NOTE: This test must be performed with a CD in good

condition. Dirty or badly scratched CDs will skip much

easier due to the poor laser signal received from them.

Verify fault with

customer.

Go to Step 6.

6 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Check that the audio head unit cradle and

surrounding escutcheon are securely held in place

by their retaining screws.

Is the assembly securely mounted?

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Repair as

necessary.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

CD CHANGER

The System 3 and System 4 audio systems feature an integrated six-disc CD Changer built into the audio system

head unit. CDs are loaded and ejected one at a time through the single slot on the fascia. Display messages,

audible beeps and flashing of the fascia LED co-ordinate the loading and removal of CDs. A 7 second memory is

fitted to prevent music interruption due to strong vibration.

The CD Changer will play all commercially recorded 120 mm music CDs, and most CDRs that have been recorded

using good quality CD Writers. CD-RWs may not play satisfactorily. The CD Changer will not play non-standard

sized CDs, eg 80 mm CDs. Using CDs smaller than 120 mm without an adaptor may result in damage to the CD,

CD Changer or both.

The CD Changer uses a LOAD button on the fascia to start the loading process. Pushing CDs into the CD slot will

not cause automatic loading and may cause the mechanism to jam.

Foreign objects, eg credit cards, placed in the CD slot will prevent loading and unloading of CDs.

Loading two CDs at once will jam the mechanism.

The CD Changer cannot decode files recorded in compressed format, eg MP3.

CDs should not have labels attached to them. The label may peel off or buckle due to heat and rub or jam the CD

mechanism. Damage caused by these labels is not covered under warranty.

NOTE: CD DOES NOT EJECT In cases where fascia button damage or no operation prevents a customer’s CD

from being ejected, use the TECH 2 to remove the CD prior to returning the unit for repair (refer to

3.10 MISCELLANEOUS TESTS in this Section). Where this is not possible and the unit is returned for repair with a

customer’s CDs trapped inside, attach a note to the Exchange Request form detailing:

• Name of CDs (for example Carmina Burana).

• Owner’s name.

• Owner’s mailing address, or Holden Dealer’s address – if CD is to be returned to the customer by the Holden

Dealer.

• Contact name and telephone number within the Holden Dealer.

IMPORTANT: It is recommended that the audio system head unit does not contain any CDs when being removed

or installed. Under some circumstances, a CD may become dislodged it the unit is treated roughly during removal

or installation.

CD CHANGER DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Leave TECH 2

connected. Go to

Step 2.

Go to

Diagnostic

Circuit Check

in this Section.

2 1. Turn on the audio system, select Radio Mode and

tune to a strong station.

Does the system work as expected in Radio Mode?

Go to Step 3. Diagnose other

system related

problems first.

3 Does the display show that any CD’s are loaded? This

will be confirmed by numbers inside the circles at the

bottom of the display.

Press CD button.

Go to Step 6.

Go to Step 4.

4 1. Press the LOAD button.

Does the CD player make normal loading noises and

request a CD after a few seconds?

Go to Step 5. Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

5 1. Load the CD.

Does the CD load smoothly and quickly?

Go to Step 6. Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

STEP ACTION VALUE YES NO

6 Does the CD play normally? Press the CD button if

necessary.

NOTE: Verify the CD plays correctly on another unit

before deciding to replace the CD player.

Go to Step 7. Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

7 Is excessive noise coming from the mechanism? Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Go to Step 8.

8 1. Using the TRACK>> button step through the tracks

on the CD stopping at each briefly to confirm correct

playback.

Does each track play properly?

NOTE: Verify the CD plays correctly on another unit

before deciding to replace the CD player.

Go to Step 9. Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

9 1. Load and play a second CD, or select another if one

is already loaded.

2. Using the TRACK>> button step through the tracks

on the CD stopping at each briefly to confirm correct

playback.

Does the operation complete successfully?

Go to Step 10. Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

10 1. Repeat Step 9 until six CDs have been loaded and

tested.

Did the operation finish successfully?

Go to Step 11. Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

11 1. Eject, load and briefly play each CD again.

Were any errors encountered?

Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Go to Step 12.

STEP ACTION VALUE YES NO

12 1. Put the CD player into DISC RANDOM mode.

2. Set the volume to a medium level.

3. Allow to play unattended for one hour or more.

Were any errors encountered that stopped playback?

Record any

DTCs and eject

the CDs.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Go to Step 13.

13 1. With a CD playing, test drive the vehicle on smooth

and rough roads and note if any errors occur.

Change the CD several times during the test.

Were any abnormalities noted?

Record DTCs

and eject the

CDs. Replace

the audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Verify fault with

customer.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

RADIO REC EPTION

The audio system has a sophisticated radio tuner. Primary emphasis is on consistent sound quality without the

effects of external interference. The AM section has good sensitivity for weak stations and strong selectivity to

prevent interference from other stations. FM includes a multipath detection circuit to stop unwanted noise being

amplified and a treble cut circuit to reduce noise when signals are weak. The circuit is under continuous computer

control to adjust its characteristics as reception conditions vary. Apart from Local (LOC) and Distance (DX) search

switching there are no user adjustable parameters.

With TECH 2 it is possible to monitor the signal strength received by the radio. This is a good tool for diagnosing

radio and antenna problems. On models fitted with a diversity antenna, TECH 2 may be used to switch between

the front antenna and the diversity antenna for diagnostic purposes.

The diversity antenna system is used to minimise the normal disturbances associated with FM transmissions.

Using the two antennas the radio monitors the signal from both antennas and dynamically selects the antenna with

the better signal. Compared to a standard single antenna, this achieves a more even sound quality without the

frequent disturbances of a single antenna design. Refer to the Diversity Antenna Fault Diagnosis in this Section

for details and diagnosis of the Diversity Antenna.

Multipath detector: The audio system has a special circuit to detect the presence of multipath in the FM signal.

When multipath is detected, the tuner switches to mono output mode so that the multipath distortion is not heard.

The computer requires several seconds of multipath free reception before it will allow the output to return to full

stereo. Due to this circuitry, the radio will sometimes be in mono reception mode during city and urban driving

where multipath is most common. The delay in switching from mono to stereo is to reduce the effects of the music

suddenly switching modes. Switching between mono and stereo is often perceived as a volume change. In some

cases the customer will notice the volume fluctuation, particularly if a high value of treble has been selected in the

audio setting.

Treble control: When signals become weaker the background noise seems to become stronger. The background

noise in fact remains constant but the radio station is not strong enough to overcome it. In these circumstances the

radio automatically reduces the amount of treble (called High Frequency Cut) to help hide the background noise.

On Calais, CV8 Coupe and Omega radios the High Frequency Cut is partially selectable with the LOC function.

When in LOC mode, there is no High Frequency Cut. In non-LOC Mode or Distance Mode, the treble is reduced by

half to cut down on the background noise. It is recommended to leave the LOC ON to achieve the best

performance from local radio stations.

NOTE: When performing radio diagnosis it is recommended that the vehicle be moved outside the workshop.

Radio signals are blocked by the metal structure of most workshops making testing difficult. AM particularly is

affected by being in an enclosed space. Radio reception varies significantly with location. When testing for radio

performance it is advisable to have another car available for a comparison check.

Vehicle interference is often caused by a bad earth connection within the vehicle. To isolate the source of

interference turn circuits on and off until the source of the noise is found, eg indicators, wipers, horn. Then study

the circuit diagram paying attention to the location of earth points (refer to Section 12P, WIRING DIAGRAMS).

Check each earth point for tightness.

RADIO RECEPTION DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic Circuit

Check

in this Section.

2 1. Move the vehicle to an outside location that is

known to have good reception.

2. Ensure that the radio is installed in the instrument

panel correctly. If the radio is not fully installed

connection to the antenna lead will be affected.

3. Switch the audio system on.

4. Ensure that the antenna is fully extended.

Is the antenna damaged or not extending properly?

Refer to Electric

Antenna – Full

Up/Down or

Electric Antenna

– Height

Adjustable

Diagnosis in this

Section.

If vehicle is NOT

fitted with a

diversity

antenna, go to

Step 3.

If vehicle is

fitted with a

diversity

antenna, go to

Step 4.

STEP ACTION VALUE YES NO

3 1. If possible, select a local FM station.

2. Connect TECH 2 to the DLC.

3. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Data Display / Data List.

4. Scroll to Antenna Signal Strength in the TECH 2

menu.

Can the signal strength be made to read 60 or more? If

necessary move the vehicle to find a better signal.

Go to Step 13. Go to Step 6.

4 1. If possible, select a local FM station.

2. On TECH 2, select Diagnostics / Model Year /

Vehicle Model / Body / Audio System / F4

Miscellaneous Tests.

3. Scroll to Antenna Signal Strength in the TECH 2

menu.

4. Switch between the main and diversity antennas

using the TECH 2 soft keys.

NOTE: The audio system will switch off 10-15 seconds

after selecting ‘Deversity Antenna’. Selecting ‘Main

Antenna’ will switch the audio system back on.

5. Drive the vehicle in a small circle while monitoring

the main and diversity antenna signal strengths.

Is the displayed signal strength within 20 for each

antenna and above 40?

Go to Step 13. Go to Step 5.

5 Is the diversity antenna signal strength always about

30 units below the main antenna signal strength?

Go to Diversity

Antenna System

Test Procedure

in this Section.

Go to Step 6.

6 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Check that the antenna connector is plugged into

the radio cradle properly.

3. From inside the vehicle, remove the passenger’s

side hinge pillar trim assembly to gain access to the

antenna connector. Refer to Section 1A8,

2.8 HINGE PILLAR TRIM ASSEMBLY. Check that

the antenna extension lead is correctly connected to

the front antenna lead.

4. Install the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

5. Switch the audio system on.

Has the signal strength improved?

Go to Step 13. Go to Step 7.

7 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital ohmmeter, check the resistance at

radio connector A133 between terminal X1-A8,

circuit 851 (Black / White wire) and a known good

ground.

Is the value as specified?

Less than

1 ohm

Go to Step 8. Repair faulty

circuit 851.

8 1. Using a digital ohmmeter, check the resistance

between body ground and the centre terminal of the

main antenna lead.

Is the value as specified?

Open circuit,

or greater

than

100 Megohms

Go to Step 9. Replace

damaged

antenna or

antenna

extension lead.

Refer to

2. SERVICE

OPERATIONS in

this Section.

9 1. Using a digital ohmmeter, check the resistance

between the body ground and the outer metal

spring connections of the main antenna lead.

Is the value as specified?

Less than

1 ohm

Go to Step 10. Repair faulty

ground

connection.

STEP ACTION VALUE YES NO

10 1. Disconnect the antenna extension lead from the

antenna lead connector.

2. Using a digital ohmmeter, check continuity of the

antenna extension lead centre conductor from the

radio connector A133 terminal X2-A, circuit 5172

(Black wire) to the other end of the extension lead.

Is the value as specified?

Less than

1 ohm

Install antenna

lead. Go to

Step 11.

Replace antenna

extension lead.

Refer to

2. SERVICE

OPERATIONS in

this Section.

11 1. If possible, remove suspect radio and install in

another vehicle. If not available go to Step 12.

Has reception improved?

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Refer to Electric

Antenna – Full

Up/Down or

Electric Antenna

– Height

Adjustable

Diagnosis in this

Section.

12 1. Temporarily fit a substitute front antenna.

Has reception improved?

Install new main

antenna. Refer to

2.9 POWER

ANTENNA in this

Section.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

13 1. Choose AM and tune to a weak station.

2. Confirm expected sound quality on another vehicle

at the same location.

3. Turn the Ignition off (if it was on).

4. From the Body Menu, select Audio System / Data

Display / Data List on the TECH 2.

5. Scroll to Antenna Signal Strength in the TECH 2

menu.

6. Note the signal strength and sound quality.

7. Turn the ignition on (do not start engine) and

operate electrical items in the vehicle – wipers,

indicators, fan, lights etc.

Has the sound quality reduced significantly by turning

the ignition on?

Check for poor

ground

connections.

Isolate the cause

by switching

circuits on and

off. Repair faulty

circuit.

Go to Step 14.

14 1. Start the engine.

Has the sound quality reduced significantly by starting

the engine?

Go to Step 15. Go to Step 16.

15 1. Rev the engine.

Does the interference change frequency with changes in

engine speed?

Check charging,

fuel and ignition

system for bad

connections.

Check the

electronic

modules and

motors for poor

connections, eg,

starter motor and

PCM.

16 1. Move the vehicle.

Does the level of interference also change, i.e.

interference is external?

Compare with

another similar

vehicle. If the

performance is

similar, the

interference is

caused by

external sources

and cannot be

overcome.

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

SUBWOOF ER AM PLIFI ER

Figure 12D-93

Level 3 models are fitted with an auxiliary amplifier to improve the low frequency output of the system using two

parcel shelf mounted subwoofer speakers. The unit is a two channel, high powered design that features self-

protection circuitry to stop overload in the event of damage to wiring or speakers, or high temperatures. Signal

inputs to the amplifier are taken from the corresponding left and right rear door speakers, as per the system

diagram, and the signals are then combined to produce a mono output.

Output gain can be varied by turning the small adjuster mounted on the end of the casing at the opposite end to the

connector. The centre position is the default setting. From the centre position the subwoofer effect can be

increased by 6 dB or decreased by 3 dB from the factory setting for customers who prefer more or less subwoofer

effect. A 10 Amp fuse mounted in the end of the unit will protect the wiring in event of an internal amplifier failure.

SUBWOOFER AMPLIFIER DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic Circuit

Check

in this Section.

2 1. Switch the audio system on, increase bass to

maximum, fade speakers to the rear, set balance to

STD, and adjust the volume to a medium level.

Can you hear the subwoofer system operating from inside

the vehicle or in the rear compartment?

Go to Step 7. Go to Step 3.

3 Are the corresponding rear door speakers operating? Go to Step 5. Go to Step 4.

4 1. Check the door speaker wiring for an open circuit or

short circuit and repair as necessary. Refer to No

Sound or Distorted Sound Diagnostic Chart in this

Section.

2. Test the audio system again as detailed in Step 2.

Is the system working?

Return audio

system settings to

normal. Go to

Step 10.

Go to Step 5.

STEP ACTION VALUE YES NO

5 1. Remove the subwoofer amplifier, refer to

2.12 SUBWOOFER AMPLIFIER in this Section.

2. Check the 10 A fuse located at end of the unit.

Replace if necessary.

3. Check the wiring connection on the subwoofer

amplifier wiring harness. Repair as necessary.

4. Using a digital voltmeter, check for battery voltage

between the following terminals of amplifier

connector N6 and a known good ground. Repair as

necessary:

• Terminal X1-4, circuit 1540 (Orange / Blue wire).

• Terminal X1-11, circuit 1540 (Orange / Blue

wire).

5. Using a digital ohmmeter, check for continuity

between a known good ground and the following

terminals of amplifier connector N6. Repair as

necessary:

• Terminal X1-5, circuit 650 (Black / Blue wire).

• Terminal X1-12, circuit 650 (Black / Blue wire).

6. Install the amplifier (refer to 2.12 SUBWOOFER

AMPLIFIER in this Section) and test the audio

system again as detailed in Step 2.

Is the system working?

End of

diagnostics.

Go to Step 6.

6 1. Check the wiring connections on the subwoofer

speakers for damage or incorrect connection. Repair

as necessary.

2. Using a digital ohmmeter, check for open circuit

between each of the speaker circuits and a known

good ground at amplifier connector N6. Repair as

necessary.

3. Test the audio system again as detailed in Step 2.

Is the system working?

End of

diagnostics.

Go to Step 7.

7 1. Disconnect the subwoofer amplifier connector N6.

Ensure that each subwoofer speaker connector is

firmly connected to its speaker. Using a digital

ohmmeter, check for continuity between each of the

speaker circuits at amplifier connector N6.

• Left Speaker – X1-9, circuit 346 (Yellow / White

wire) and X1-10, circuit 1794 (Yellow / Red wire).

• Right Speaker – X1-3, circuit 1795 (Green/

White wire) and X1-8, circuit 315 (Green/ Red

wire).

Is the value as specified?

Approximately

2 ohms

Replace the

subwoofer

amplifier. Refer to

2.12 SUBWOOFER

AMPLIFIER in this

Section.

Go to Step 8.

8 1. Disconnect the subwoofer speaker connector on the

speaker that gives the faulty reading.

2. Using a digital ohmmeter, check for continuity

between the speaker terminals.

Is the value as specified?

Approximately

2 ohms

Go to Step 9. Replace the

subwoofer

speaker. Refer to

2.5 SUBWOOFER

SPEAKERS in this

Section.

9 1. Repair open or short circuit in speaker wiring circuits

346, 1794, 315 or 1795 as appropriate.

2. Install the amplifier and speakers and test the audio

system again as detailed in Step 2.

Is the system working?

End of

diagnostics.

Replace the

subwoofer

amplifier, refer to

2.12 SUBWOOFER

AMPLIFIER in this

Section.

10 Are both speakers working equally and free from unusual

vibrations, buzzes or distortion?

Verify fault with

customer.

Go to Step 11.

STEP ACTION VALUE YES NO

11 1. Check the speaker cone for foreign materials, such

as screws, stones or wiring.

2. Verify the sealing foam on the parcel shelf is seated

correctly and not touching the speaker cone. Repair

as necessary.

3. Verify the parcel shelf is tightly mounted and not free

to vibrate.

4. Test the audio system again as detailed in Step 2.

Is the system working as expected?

End of

diagnostics.

Replace the

subwoofer

speaker. Refer to

2.5 SUBWOOFER

SPEAKERS in this

Section.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

DTC 10 — FASCIA BUTTON JAMMED

With the ignition in either the Accessories position or the On position, DTC 10 will set if a fascia panel control

button remains pressed or stuck for more than 40 seconds.

FASCIA BUTTON JAMMED DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic Circuit

Check

in this Section.

2 1. Check the fascia and every button for signs of

damage, foreign objects, poor or sticking operation.

Check the escutcheon surrounding the radio is not

distorted and exerting pressure on the radio fascia.

Is there damage or foreign objects present to cause the

problem?

Go to Step 3. Go to Step 4.

3 1. Clear any objects and clean any residue.

Does the button function correctly?

End of

diagnostics.

Replace the audio

system head unit.

Refer to

2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

4 1. Check the stuck button for signs of poor operation.

Does the button stick for no apparent reason?

Replace the audio

system head unit.

Refer to

2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Go to Step 5.

5 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Diagnostic Trouble Codes /

Clear DTC Information.

3. Press all buttons several times.

4. Allow the radio to operate for several minutes. Do not

press any buttons during this time.

Does the DTC set again?

Replace the audio

system head unit.

Refer to

2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Verify fault with

customer.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DTC 11 — STEERING WHEEL REMOTE BUTTON JAMMED

Figure 12D-94

Control buttons located on the steering wheel provide remote operation of various audio system functions. The

remote controls constitute a resistive network. When a button is pressed, the change in resistance is interpreted by

the radio as a button press, and the appropriate function is actioned.

With the ignition in either the Accessories position or the On position, DTC 11 will set if a steering wheel control

button remains pressed or stuck for more than 30 seconds.

STEERING WHEEL REMOTE CONTROLS DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 Was the Diagnostic Circuit Check performed? Go to Step 2. Go to

Diagnostic Circuit

Check

in this Section.

2 1. Switch the audio head unit on.

2. Press each of the steering wheel remote control

buttons and note if the unit follows the command.

Does the audio system operate as expected?

Confirm fault with

customer.

Go to Step 3.

3 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Data Display / Data List.

3. Scroll to Steering Wheel Remote Control in the

TECH 2 menu.

4. Do not press any button.

Does TECH 2 display KEY RELEASED?

Go to Step 4. Go to Step 5.

4 1. Press each of the steering wheel remote control

buttons in turn.

Does TECH 2 display the name of each button when

pressed?

Go to Step 8. Go to Step 6.

STEP ACTION VALUE YES NO

5 1. Remove the audio system head unit. Refer to

2.1 AUDIO SYSTEM HEAD UNIT in this Section.

2. Using a digital ohmmeter, check the resistance at

radio connector A133 between terminal X1-C11,

circuit 1796 (Brown wire) and terminal X1-C12,

circuit 1375 (Black / Yellow wire).

3. Do not press any button.

Is the resistance as specified?

Between

3.5 kohms

and

3.9 kohms

Go to Step 7. Repair faulty

circuit 1796 or

1375.

6 1. With the ohmmeter connected as in Step 5, press

and hold the MUTE button.

Is the resistance as specified?

Between

270 ohms

and

300 ohms

Go to Step 7. Replace steering

wheel remote

controls. Refer to

2.11 HORN BAR

STEREO

CONTROLS in

the Section.

7 1. Using a digital ohmmeter, check the resistance at

radio connector A133 between terminal X1-C11,

circuit 1796 (Brown wire) and a known good ground.

2. Using a digital ohmmeter, check the resistance at

radio connector A133 between terminal X1-C12,

circuit 1375 (Black / Yellow wire) and a known good

ground.

Is the resistance as specified?

Open circuit Go to Step 8. Repair faulty

circuit 1796 or

1375.

8 1. Turn the headlamp switch to the Park position.

2. Using a digital ohmmeter, check the resistance at

radio connector A133 between terminal X1-C11,

circuit 1796 (Brown wire) and terminal X1-C12,

circuit 1375 (Black / Yellow wire).

3. Do not press any button.

Is the resistance as specified?

Between

3.5 kohms

and

3.9 kohms

Replace the

audio system

head unit. Refer

to 2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Repair faulty

circuit 1796 or

1375.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

DTC 21 — CD MECHANISM ERROR (CD CHANGER MODELS ONLY)

With the ignition in either the Accessories position or the On position, DTC 21 will set to indicate that an error

message has been received from the CD Changer due to an internal mechanical error.

This error may indicate the following:

• Mechanism has an internal fault.

• Conditions were too severe for the mechanism to operate properly. Mechanism may operate properly after

conditions improve.

CD MECHANISM ERROR DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 1. Switch the audio system on.

2. Select CD Mode (it may be necessary to try and load

a CD).

Does a Mechanism Error appear on the display of the

audio system?

Replace the audio

system head unit.

Refer to

2.1 AUDIO

SYSTEM HEAD

UNIT in this

Section.

Refer to CD

Changer

Diagnosis.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DTC 22 — CD PLAY ERROR (CD CHANGER MODELS ONLY)

With the ignition in either the Accessories position or the On position, DTC 22 will set to indicate that an error

message has been received from the CD Changer due to a disc playing error. This error is due to problems in

reading the CD, and it may be set due to the following actions:

• CD was loaded upside down. CD mechanism was unable to play it.

• Computer Data CD was loaded. CD mechanism was unable to play it.

• Disc was badly damaged and could not be read.

• Disc was blank.

• Conditions were too severe for the CD player to read the CD. For example, too much vibration.

The DTC will remain set even though a faulty CD might have been removed already or the fault was cleared.

CD PLAY ERROR DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 1. Eject all CDs from the unit.

2. Load a known good CD.

Does the CD play correctly?

Go to Step 2. Refer to CD

Changer

Diagnosis.

2 1. Turn the ignition off.

2. Connect TECH 2 to the DLC.

3. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Diagnostic Trouble Codes /

Clear DTC Information.

4. Play a CD for 30 minutes.

Does the DTC set again?

Refer to CD

Changer

Diagnosis.

End of

diagnostics.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DTC 24 — CD LOADING ERROR (SINGLE CD MODELS ONLY)

With the ignition in either the Accessories position or the On position, DTC 24 will set to indicate that an error

message has been received from the CD Player due to a jammed disc or the disc being held during the loading or

ejecting process.

CD LOADING ERROR DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 1. Switch the audio system on.

2. If a CD is loaded, eject it with the EJECT button.

3. Insert a CD.

4. Eject the CD.

Does the mechanism load and eject a CD normally?

Verify fault with

customer.

Refer to Single CD

Diagnosis.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DTC 25 — CD DEFECT (SINGLE CD MODELS ONLY)

With the ignition in either the accessories position or the on position, DTC 25 will set to indicate that an error

message has been received from the CD Player as the loaded CD cannot be read. This could be caused by the

disc being installed upside down, the disc being scratched or broken, or a data CD being installed.

This DTC will remain set after the fault has cleared.

CD DEFECT DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 1. Switch the audio system on.

2. Eject the loaded CD if necessary.

3. Check customer’s CDs for:

• Damage, excessive scratching, dirt, labels, pen.

• Data CD (not an audio CD).

• Blank CD (not recorded).

• Upside down.

Are the CDs in good condition and loaded with label

surface upwards?

Go to Step 2. Advise customer

of the problem and

how to avoid it in

future.

2 1. Load a known good CD.

Does the CD play correctly?

End of

diagnostics.

Refer to Single CD

Player Diagnosis.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DTC 26 — CD GENERAL ERROR (SINGLE CD MODELS ONLY)

With the ignition in either the Accessories position or the On position, DTC 26 will set to indicate that an error

message has been received from the CD Player as the installed disc could not be played and the cause is not

evident. This could be caused by a defective laser pickup or the laser pickup being jammed.

CD GENERAL ERROR DIAGNOSTIC CHART

STEP ACTION VALUE YES NO

1 1. Connect TECH 2 to the DLC.

2. Select Diagnostics / Model Year / Vehicle Model /

Body / Audio System / Diagnostic Trouble Codes /

Read Current DTC Information.

3. Switch the audio system on.

4. If necessary, insert a CD.

Is DTC 26 set?

Refer to Single CD

Player Diagnosis.

End of

diagnostics.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, CLEAR ALL DTC AND VERIFY CORRECT OPERATION

DTC 30 — INTERNAL BUS FAILURE

With the ignition in either the Accessories position or the On position, DTC 30 will set to indicate that an error has

occurred with one of the internal communications data busses.

If DTC 30 is set, replace the audio system head unit. Refer to 2.1 AUDIO SYSTEM HEAD UNIT in this Section.

DTC 33 — SINGLE COMMUNICATION BUS FA ILURE

With the ignition in either the Accessories position or the On position, DTC 33 will set to indicate that an error has

occurred in communication between the main PCB and the single CD mechanism.

If DTC 33 is set, replace the audio system head unit. Refer to 2.1 AUDIO SYSTEM HEAD UNIT in this Section.

DTC 34 — MULTI COMMUNICATION BUS FAILURE

With the ignition in either the Accessories position or the On position, DTC 34 will set to indicate that an error has

occurred in communication between the main PCB and the CD Changer mechanism.

If DTC 34 is set, replace the audio system head unit. Refer to 2.1 AUDIO SYSTEM HEAD UNIT in this Section.

DTC 35 — FASCIA COMMUNICATION BUS FAILURE

With the ignition in either the Accessories position or the On position, DTC 35 will set to indicate that an error has

occurred in communication between the main PCB and the audio system fascia.

If DTC 35 is set, replace the audio system head unit. Refer to 2.1 AUDIO SYSTEM HEAD UNIT in this Section.

DTC 40 — NO BCM SERIAL DATA

With the ignition in either the Accessories position or the On position, DTC 40 will set to indicate that the radio has

not received any data from the BCM for more than 10 seconds. This does not necessarily mean the radio has a

fault, it usually indicates that the radio has been in operation on a workbench and the bus has not been connected.

If DTC 40 is set, refer to Section 12J, 4.2 SERIAL DATA COMMUNICATION for further diagnosis.

DIVERSITY ANTENN A F AULT DIAGNOSIS

Before commencing the diagnostic procedure for the diversity antenna system the following should be checked:

Determine whether the reception problem is apparent with FM, AM or both. Faults affecting both FM and AM

reception are not caused by the diversity antenna system due to the fact that the diversity antenna system only

affects FM reception. The conventional fender mounted mast type antenna system is more likely to be cause of

such faults.

Ensure that the customer complaint is not due to normal operation or the limitations of FM transmissions. The

diversity antenna system is designed to minimise distortion in the sound quality of FM reception and not to give

large increases in FM reception range.

Compare reception quality with that of another vehicle equipped with a diversity antenna system in the same

location and under the same conditions.

DIVERSITY ANTENNA SYST EM TEST PROCEDURE

NOTE: When the vehicle’s conventional antenna is lowered, disconnected or faulty, the radio will not use the

diversity antenna system to receive FM radio signals. If no FM stations can be received then the fault is not due to

the diversity antenna system.

Refer to Radio Reception Diagnostic Chart in this Section before commencing to diagnose a diversity antenna

related system fault..

1. Remove the passenger’s side hinge pillar trim

assembly. Refer to Section 1A8, 2.8 HINGE

PILLAR TRIM ASSEMBLY.

2. Leaving the wiring harnesses connected to the

exposed module, manoeuvre the module from

the plastic mounting bracket.

3. Remove the plastic mounting bracket.

Legend

1. Diversity antenna coaxial cable

2. Diversity antenna amplifier module power cable

3. Power antenna coaxial cable

4. Disconnect the diversity antenna amplifier

module power cable (2).

5. Test the voltage at the diversity antenna

module-to-main wiring harness connector with

the key in Accessories position. If 12 V is

indicated, continue with next step. If 0 V is

indicated, trace wire back to fault and repair.

Figure 12D-95

6. Remove the parcel shelf, refer to

Section 1A8, 2.9 REAR WINDOW TRIM

PANEL ASSEMBLY.

7. Check the connection from the diversity

antenna module connector (3) to the rear

window connector. Check the ground terminal

(2) for a good electrical ground. If necessary,

tighten to the correct torque specification.

DIVERSITY ANTENNA

GROUNDING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

8. Measure the resistance from the mounting tab

(5) of the diversity antenna amplifier module (4)

to a good ground point. If greater than 1 ohm,

tighten the module-to-parcel shelf retaining

screw (1) to the correct torque specification and

check the resistance again.

DIVERSITY ANTENNA MODULE

MOUNTING SCREW

TORQUE SPECIFICATION 1.0 – 3.0 Nm

Figure 12D-96

9. Check the diversity antenna for continuity.

Refer to 2.10 DIVERSITY ANTENN A in this

Section. If the antenna continuity is acceptable

then replace the diversity antenna amplifier

module. Refer to 2.10 DIVERSIT Y ANTENNA

in this Section.

4. SPECIFICATIONS

SYSTEM 1 / 2 ENTERTAINMENT SYSTEM

Radio / CD Player ................................................... AM/FM Stereo Tuner / Single CD Player

Power Output .......................................................... 80 watts

Speakers

Type

– Instrument Panel mounted.............................. Two speakers – instrument fascia mounted tweeters

– Front Door ....................................................... Two speakers – front door trim mounted 150 mm full

range dual cone

– Rear Door (except Utility................................. Two speakers – rear door trim mounted 150 mm full

range dual cone (rear side panel mounted in Coupe)

Impedance ......................................................... Instrument panel speakers – 2 ohms

Front and rear door speakers – 4 ohms

SYSTEM 3 ENTERTAINMENT SYSTEM

Radio / CD Changer................................................ AM/FM Stereo Tuner / Six Disc CD Changer

Power Output .......................................................... 80 watts

Speakers

Type

– Instrument Panel............................................. Two speakers – instrument fascia mounted tweeters

– Front Door ....................................................... Two speakers – front door trim mounted 150 mm full

range dual cone

– Rear Door ....................................................... Two speakers – rear door trim mounted 150 mm full

range dual cone

Impedance ......................................................... Instrument panel speakers – 2 ohms

Front and rear door speakers – 4 ohms

SYSTEM 4 ENTERTAINMENT SYSTEM

Radio / CD Changer................................................ AM/FM Stereo Tuner / Six Disc CD Changer

Power Output .......................................................... Head unit – 120 watts

Subwoofer amplifier 2 x 70 watts max.

Speakers

Type

– Instrument Panel............................................. Two speakers – instrument fascia mounted tweeters

– Front Door ....................................................... Two speakers – front door trim mounted 150 mm full

range dual cone

– Rear Door ....................................................... Two speakers – rear door trim mounted 150 mm full

range coaxial

– Rear Parcel Shelf............................................ Two speakers – rear parcel shelf mounted 200 mm

subwoofer

Impedance ......................................................... All speakers – 2 ohms

5. TORQUE WRENCH SPECIFICATIONS

Instrument Panel Speaker Retaining Screw (all models) ...... 1.0 – 3.0

Defroster Grille Retaining Screw ........................................... 1.0 – 3.0

Instrument Panel Outer Cover Retaining Screw.................... 1.0 – 3.0

Front Door Speaker Retaining Screw (all models) ................ 1.0 – 3.0

Rear Door Speaker Retaining Screw (all models)................. 1.0 – 3.0

Subwoofer Speaker Retaining Screw.................................... 1.0 – 3.0

Rear Quarter Speaker to Mounting Bracket

Retaining Screw..................................................................... 1.0 – 3.0

Speaker Mounting Box to Rear Parcel Shelf

Retaining Screw..................................................................... 1.0 – 3.0

Rear Parcel Shelf Speaker to Mounting Box

Retaining Screw..................................................................... 1.5 – 3.0

Antenna Bracket to Inner Fender Panel

Retaining Bolt .................................................................... 14.5 – 19.5

Manual Antenna Bracket Bolt ................................................ 2.0 – 5.0

Manual Antenna Ground Braid to Inner Fender Screw ......... 1.0 – 3.0

Power Antenna Bracket to Inner Fender Panel

Retaining Bolt .................................................................... 14.5 – 19.5

Power Antenna to Mounting Bracket

Retaining Nuts ..................................................................... 5.0 – 12.0

Diversity Antenna Module to Parcel Shelf Attaching Screw .. 1.0 – 3.0

Diversity Antenna Grounding Screw...................................... 1.0 – 3.0

Stereo Switch to Steering Wheel Retaining Screw ............... 1.0 – 3.0

Subwoofer Amplifier Attaching Screw ................................... 0.5 – 1.5

6. SPECIAL TOOLS

TOOL NUMBER ILLUSTRATION DESCRIPTION TOOL

CLASSIFICATION

7000086I

TECH 2

DIAGNOSTIC SCAN TOOL

Used for diagnosis of vehicle

electrical system.

Previously released.

Mandatory

J35616-A

(KM609)

CONNECTOR TEST ADAPTOR

KIT

Used when carrying out electrical

diagnostic circuit checks.

Previously released.

Desirable

KM6067

RADIO REMOVAL TOOLS

Used for removing VY audio unit from

it’s mounting location.

New tool for VY.

Mandatory

3588

(J39200)

DIGITAL MULTIMETER

Must have at least 10 MΩ input

impedance and be capable of

reading frequencies.

Previously released.

Available

Revised February 2003

BLAUPUNKT AUDIO REPLACEMENT / REPAIR

AUTHORISATION REQUEST FORM

Date: ……………….. Time: -………… am/pm Dealer Code: ……..…… Warranty: YES / NO

Contact Name:………………………… Dealer Name: ………………………………………….………………..……..

Phone No.: (………)………………… Dealer Address: ……………………………………………………………….

Fax No.: (………)……..……………… ……………………………………………………………………………………

R / O No:-……..………………… …………………………………………………………………………………….

Service Manager or Nominee Signature: ……………………………………………..……………………………………

Vehicle Detail s:

ISOVIN: ……………………………………………………. TAG No……………………………. Delivery Date:-………………….

Build Date: ……………………… Odometer:…………. Vehicle Model Code: eg VY Berlina, TS CD, JS etc. ………………

Audio System Details:

Holden Part Number

9………………………………..

Blaupunkt Serial Number of failed unit eg BP8382W0608664

BP…………………………..………………………………

Component Description: eg VY Acclaim single CD, JS CD Changer: …………………………………………………………

CD’s stuck inside? Yes No If Yes, complete CD ENCLOSED form and fax with the PRIOR APPROVAL FORM

AND attach a copy to the radio.

Is there any physical damage or modifications done to the unit? YES / NO (Please circle)

A. CUSTOMER COMPL AINT DE TAIL S

………………………………………………………………………………………………………………………

B. TITLE of DIAGNOSIS CHART(S) USED ie “Radio Illumination”

…………………………………………………………………………………..

Stored DTC’s.

C. FAULT DIAGNOSIS STEPS COMPLETED (insert applicable steps – refer Diagnosis Procedure)

D. DIAGNOSIS COMMENTS

………………………………………………………………………………………………………………………

NOTE: For Diag nostic assistance, please call Blaupunkt Servi ce Cent re on 1300 30 70 36.

Please return faul ty uni t usin g the provided return consignmen t note and original shipping

carton. To book courier, please call Mayn e on 131 531, account number 3006ZT.

AUTHORISATION NUMBER (Blaupunkt to provide)

……………………………

FAX this completed for m to Blaupu nkt on (03) 9541 5432

Revised February 2003

CDs ENCLOSED

ATTENTIO N: Thi s unit contains Customer’s CDs. Please be extra careful with them, th e

customer would like them back as soon as possible.

Serial number of Radio/CD: BP

The following CDs are thought to be inside;

Eg. Queen – Greatest Hits

We woul d like the CDs returned to the followin g address;

Name: Phone: ( )

Address:

Suburb: State:

Post Code:

Returned b y: (please print)

Dealership:

Date:

Blaupu nkt Service use: CDs removed:

Technician: Date:

Returned to abo ve on: (date)

Consignment No te:

Include this form with the faxed BLAUPUNKT AUDIO REPLACEMENT/REPAIR

AUTHORISATION REQUEST FORM, AND attach it to the unit being returned.

Please provide the Customer with a copy of this completed form, it is their

receipt for tracki ng the CDs.