SECTION 12Q - TELEMATICS

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.

1. GENERAL INFORMA TION

The telem atics system has been de veloped usin g some of the most advanced Global Position System (GPS) and

telecommunications technology, Global System for Mobile (GSM) Communications available. The telematics

system provides in-vehicle safety, security and information services by providing a two way, hands free

communication to either the Holden Assist Centre or, in the case of an emergency, to the National Emergency

Response Centr e (NER C™ ) .

Holden Assist provides several services, some of which include remote door unlocking, connection to Holden

Roadside Assistance, Low Battery Alert and Accident Inquiry. In addition it will know if the theft of the vehicle is

attempted, can then track he vehicle and in certain circumstances, can remotely immobilise the engine. For a full

list of services provided by Holden Assist, refer to the Holden Assist Handbook Supplement.

The link between the vehic l e and the Holden Ass is t Ce ntre or th e Nat ion al Emergency Respons e C entr e use s G PS

for vehic le location a nd tracking an d the Australi an digital m obile phone n etwork to trans mit and recei ve voice and

SMS (S hort Mess age Serv ice) data. If the v ehicle is outside network coverag e, the link to and from the vehic le will

not be available and no services can be provided. Signal strength may be affected in locations like basement car

parks or tunnels. However, in most cases, as the vehicle emerges from the obstruction or re-enters the digital

phone network area the signal will be available again.

A vehic le equippe d with the te lematics s ystem will be de livered to the dealers hip with the te lematics system in the

pre deli very m ode. Dur ing t he pr e de li very of the v eh icl e the te lematic s module pre deli very m ode must be di s able d

and the service mode must be enabled using Tech 2. In service mode, limited service will be provided until the

custom er has signed the terms and conditions d ocument and the custom er has set up the system b y press ing the

Holden Assist button. The Holden Assist operator will then disable service mode and the system will be fully

operational. The set up procedure information is provided in the Holden Assist Handbook Supplement.

Figure 12Q-1

Techline

Figure 12Q-2

1. Theft deterrent horn 4. Driver’s door jamb switch 7. Passenger door jamb switches

2. Radio 5. Telematics antenna 8. Telematics speaker

3. Interior rear view mirror 6. Telematics module assembly

2. PRINCIPLES OF OPERATION

2.1 OPERATING MODES

The telematics system has six operating modes, Pre Delivery, Service, Active, Stand-by, Sleep and Battery Saver.

PRE DELIVERY MODE

In the pr e del iver y mode the s ystem is n ot opera tiona l. T he veh icle will b e d eliver ed f rom the ass em bly plant to the

dealer with the telematics system in the pre delivery mode. Before the vehicle is delivered to the customer, the

telematics system must be taken out of the pre delivery mode using Tech 2. Refer to 4.3 TECH 2 TEST MODES

F4: Program, F2: Oper atin g Mode, F 0: Pr e Del i ver y Mo de in t his S ec tio n. When in pr e del ivery mode the t el e matics

module will only communicate with Tech 2 when the driver’s door is open and for 30 minutes after the driver’s

doors is shut or 30 minutes after Tech 2 stops communicating with the telematics module.

SERVICE MODE

When the vehicle is scheduled to be serviced, the telematics system service mode should be activated. The

custom er may request the Holden Assist Centre to rem otely enable or d isable service mode. A service technician

can also activate or inactivate service mode with Tech 2. Refer to 4.3 TECH 2 TEST MODES F4: Program,

F2: Operating Mode, F1: Service Mode in this Section.

When the service mode is activated the telematics module will ignore all button presses except for the Holden

Assist button. In addition, the module will not transmit alert messages for unauthorised entry or low battery.

However the module will transmit an airbag activation alert.

ACTIVE MODE

This is the norm al telem atic s s ystem oper ating m ode. In this m ode the telem atic s system is fully function al a nd can

mak e and receive cal ls, and transm it data via the GSM net work. The c urrent draw of the telem atics module is this

mode will be approximately 330 mA.

STAND-BY MODE

Two m inutes after the ign ition has be en turned of f, or two m inutes after the conclusion of a call while t he ignition is

off , the telem atics module will enter s tand-b y mode. In s tand-b y mode the G PS, Aud io and th e ke ypad buttons ar e

turned off to reduce the standing current of the telematics module. The current draw of the telematics module is this

mode will be approximately 120 mA.

The telematics module will be “woken” from the stand-by mode by any of the following:

An incoming message / call

The ignition is turned on.

Any door is opened.

The alarm is triggered.

The vehicle batt ery is disconnec te d.

A Tech 2 diagnostic request.

SLEEP MODE

The telematics module will enter the sleep mode on request from the Holden Assist Centre or 30 minutes after a

low battery alert has been sent to Holden Assist Centre, or after five days of uninterrupted ignition off. In sleep

mode the telematics module only monitors the inputs required for it to be “woken” from sleep mode.

The system may be “woken” from sleep mode by any of the following:

Any door is opened.

The alarm is triggered.

A battery removal alert.

BATTERY SAVER MODE

The purpos e of the battery saver mode is to lim it the standing curr ent of the telem atics module while s till providi ng

the abilit y to rem otel y unlock the vehicle. After two days of no activit y (igniti on on, an y door opene d, SMS r eceived,

unauthorised entry alert, low battery alert) the telematics module will enter battery saver mode. In this mode, the

telematics module will switch between sleep mode and active mode. The telematics module will operate in sleep

mode for 15 minutes then switch to active mode for two minutes. During these two minutes of active mode

operation the telematics module will log onto the GSM network and any pending remote unlock SMS messages

stored in the network will be received by the telematics module, and the doors will be unlocked. If no SMS

messages are received, the telematics module will return to sleep mode for another 15 minutes. After five days of

intermittent mode operation and no activity, the telematics module will remain in sleep mode.

2.2 ALERTS

AI R BAG AC TI VAT I O N ALE R T

If the vehicle is involved in an accident where the air bags and/or the seat belt pre-tensioners are activated, an

“Airbag Activation Alert” message will be transmitted to the Holden Assist Centre. If the Holden Assist Centre

operator is unable to contact the driver via two-way voice communication in the vehicle, or if the driver cannot

respond, the operator will hand the call over to the National Emergency Response Centre, who will then contact the

Police. T he Police m ay the n contact the am bulance service. F or further information r egarding the air bag activati on

alert, refer to the Holden Assist Handbook Supplement.

LOW BATTERY VOLTAGE ALERT

If the vehicle battery voltage fails below a preset voltage for longer than 30 minutes, the telematics module will

transmit a “Low Battery Alert” message to the Holden Assist Centre. The low battery alert voltage is displayed in

the Tech 2 data list. For further information regarding the low battery alert refer to the Holden Assist Handbook

Supplement.

BATTERY REMOVAL ALERT

If the vehicle battery is disconnected, (battery voltage less than one volt), the telematics module will transmit a

“Batter y Rem oval A ler t” message to the Hol den As sis t Centre. F or f urther inf ormation regar din g the batter y removal

alert refer to the Holden Assist Handbook Supplement.

UNAUTHORISED ENTRY ALERT

If the veh icle entr y deterren t system is trigger ed for lon ger than 20 seconds , the telem atics module will trans mit an

“Unauthorised Entry Alert” message to the Holden Assist Centre. For further information regarding the unauthorised

entry alert refer to the Holden Assist Handbook Supplement.

2.3 HOLDEN ASSIST REMOTE REQUESTS

ENGINE IMMOBILISATION

In the event of the vehicle being stolen, it will be possible for the NERC™ to remotely immobilise the engine by

sending an “immobilise” message to the telematics module. This function can only be activated by the NERC™

under instruction from the Police. On receiving the “immobilise” message, the telematics module will then turn off

the fuel p ump rela y, cutting off the suppl y of f uel to the engi ne a nd c om mand the BCM (v ia t he s eria l da ta c ir c uit) to

flash the indicators. The engin e will remain imm obilised until the “re-mobilise” m essage is rece ived from NERC™.

There are two types of remote immobilisation:

Immediate Engine immobilisation

On receiving an “Immediate Engine Immobilisation” message from the NERC™, the telematics module will

imm ediatel y turn off the fuel pum p rela y, cutting of f the supply of f uel to the engin e and com m and the BCM ( via the

serial data circuit) to flash the indicators.

Under 10 kph Engine Immobilisation

On recei ving an “Under 10 k ph Engine Im mobilisat ion” m essage f rom the NERC™, the t elematic s m odule will wai t

until the ve hicle s peed is les s than 10 k ph befor e turning of f the f uel pum p rela y, cutting of f the s upply of f uel to the

engine and command the BCM (via the serial data circuit) to begin flashing the indicators.

REMOTE UNLOCKING

On recei ving a “Rem ote Un lock” m essage from the Holde n Assist C entre, the tel em atics m odule will comm and the

BCM (via th e seria l data circ uit) to un lock the doors. W hen an y door is ope ned aft er a r emote unloc k , the alarm will

be activated . To tur n the alar m off, loc ate the k eys and either press th e unlock button, or turn the ignit ion on. If the

telematics module is operating in Battery Saver Mode the remote unlock may be delayed as much as 15 minutes.

NOTE: A Remot e Unlock from the Holden Assist Centre w ill not function while the Tech 2 is accessing an y

telematics module diagnostic information.

2.4 TELEMATICS MODULE

The telematics module, located in the left hand

side of the rear compartment, controls the

operation of the telematics system. The telematics

module consists of a GPS and GSM engine and a

Serial Data Interface. The telematics module

interfac es with oth er contro l modules in the ve hicle

via the auxiliary serial data circuit normal mode

message. For further information regarding the

serial data bus and normal mode message refer

Section 1.1 SERIAL DATA COMMUNICATION in

Section 12J-1 Low Series Body Control Module

or 12J-2 High Series Body Control Module in

this Service Information.

Tech 2 is also capable of communicating with the

telematics module via the serial data circuit.

Note:

If at any time a new telematics module is installed

into the vehicle, then this new module must be

module with Holden Assist refer to the

Telematics Module Changeover Process in this

Section.

Figure 12Q-3

- BATTERY VO LTAGE

- BACKUP BATTERY VOLTAGE

- DRIVER’S DOOR JAMB SWITCH

- PASSENGERS DOOR JAMB SWITCHES

- SERIAL DATA

IGNITION ON

SRS DEPLOYED

VEHICLE SPEED

- EMERGENCY BUTTON

- HOLDEN ASSIST BUTTON

- END CALL / INFORMATION BUTTON

- MICROPHONE

- GSM ANTENNA

- GPS A NTENNA

SYSTEM INPUTS

- AUDI O SPEAKER

- RADI O MUTE

- GREEN STATUS INDI CATOR LED

- RED STATUS INDI CATOR LED

- KEY PAD VOLTAGE

- FUEL PUMP RELAY

- BACKUP BATTERY CHARGER

- GSM

SMS AND VOICE TRANSMISSION

- SERIAL DATA

DIAGNOSTIC S

REMOTE DOOR UNLOCK

INDICATORS

SYSTEM OUTPUTS

TELEMATICS

MODULE

VX12K114

Figure 12Q-4

2.5 INTERIOR RE AR VIEW MIRROR

The interior rear vie w mir ror assembl y contains th e

telematics button pad, microphone and the status

LEDs.

1. End Call / Inform ation Button

2. Holden Assist Button

3. Microphone

4. Emergency Button

5. Status Indicator LEDs

VX12K008

HOLDEN

ASSIST

124

Figure 12Q-5

TELEMATICS BUTTON PAD

The telem atic s button pad is a resistor encod ed switch , which m eans that each b utton has a sep arate and diff erent

value resistor connected to it. The telematics module uses a voltage divider circuit to determ ine which button has

been pressed. The telematics module (refer Figure 12Q-6) supplies a 12 volt signal voltage to terminal 12 of the

rear view mirror connector (Light Green/Black wire). Whenever a button is pressed the corresponding switch is

closed and circuit 2514 (Green/White wire) is connected to ground through a resistor, each switch having a

different value resistor. The telematics module m onitors the voltage on circuit 2514 (Green/W hite wire) at terminal

19 of the rear vie w mirr or connector , which will chang e when a ny of the butt ons ar e pressed. Each but ton m ust be

pressed until two beeps are heard from the telematics speaker. If a button is not pressed for long enough, three

beeps will be heard from the telematics speaker. In the event of multiple button presses at the same time, the

telematics module will ignore the button press until all buttons are released.

Emergency Button

When the emergency button is pressed, the voltage at terminal 19 of the telematics module will be approximately

3.8 Volts, the telematics module sees this voltage at terminal 19 as an emergency button press. The emergency

button must be pressed until two beeps are heard. You will then be connected to an operator at the National

Emergency Response Centre. If the button is not pressed for long enough three beeps will be heard. For safety

reasons (in case of the presence of an intruder), if a call has been made to the National Emergency Response

Centre b y pressi ng the emer genc y button, you c annot end th is cal l, you will have to re quest them to e nd the call . If

the vehic le is not with in G SM ne twork range the te lem atics m odule will m ake the em ergenc y call as s oon the G SM

network is available.

Holden Assist Button

When the Holden Assist button is pressed, the voltage at terminal 19 of the telematics module will be approximately

2.3 Volts, the telematics module sees this voltage at terminal 19 as an Holden Assist Button press. The Holden

Assist button must be pressed until two beeps are heard. You will then be connected to the Holden Assist Centre. If

the vehicle is not within GSM network range an additional 12 beeps will be heard. If the button is not pressed for

long enough three beeps will be heard.

End Call / Information Button

When the end call / information button is pressed, the voltage at terminal 19 of the telematics module will be

approxim ately 0.7 Volts, the telem atics module sees this voltage at terminal 19 a s an end call / information button

press. T o end a call m ade to the Holden Assist Centre, the end call / inf ormation butto n must be pres sed until two

beeps are heard. If the button is not pressed for long enough three beeps will be heard.

If end call / information button is pressed to make a call, you will be connected to Holden Assist information

services. The end call / information button must be pressed until two beeps are heard. If the vehicle is not within

GSM net work r ange an ad ditional 12 beeps will be heard. If the butto n is not press ed for lon g enough three bee ps

will be heard.

MICROPHONE

The active microphone in the interior rear view mirror provides a means for voice communication to the vehicle

occupants and Holden Assist Centre.

VX12K103

G (1488)

BR (814 )

BR / W (2517)

Y/B (2516)

MIC (+)

MIC (-)

TELEMATICS MODULE

REAR VIEW MIRROR,

KEY PAD & INDICATOR ASSEMBLY

YB186

G/W (2514)

PUSH

BUTTON

SUPPLY

VOLTAGE

PUSH BUTTON

SIG N AL VO LTAGE

LG/B (2515)

YR55

YB186

Ω

13K

1.5K

Figure 12Q-6

STATUS INDICATOR LEDS

The red a nd green s tatus indicat or L EDs in t he interio r rear view m irror indic ate the c urrent stat us of the te lem atic s

system. The telematics module activates the LEDs by switching a 12 power supply to each LED on or off. The

brightnes s of the LEDs is control led b y the int erior rea r vie w mir ror elec tronic s, which will vary the brig htnes s of the

LEDs depending on the ambient light and the ignition switch position. If the ambient light is low the brightness of

the LEDs will be decreased when the ignition is on. If the ambient light is high there will be no change to the

brightness of the LEDs when the ignition is turned on.

LED Condition Current Status

Green Continuous Call is connected.

Green Flashing Call is being connected.

Red Continuous Vehicle is not within GSM network range.

Red/Green Solid Red and

Flashing Green

(Will appear to be

flashing Red/Or a nge)

Attempting to make an emergency call while outside GSM network

range (“Em er genc y Call Mo de” )

Red/Green Alternate Flashing

(only active for 25

seconds after the

ignition is turned on)

Alert that Service Mode is active or a system malfunction has been

detected.

Potential malfunctions:

Backup battery is not charged or disconnected.

GSM Module not ac tive.

GPS Module not active.

2.6 SPEAKER

The telematics speaker, located behind the glove

compartment, is connected to the vehicle wiring

harness using a two-way connector YB181.

The speaker provides a means for voice

communication, from the call centre and audible

tones are also provided to indicate the system

status and are broadcast via the speaker to alert

the customer to certain operating conditions.

The speaker volume can be programmed using

Tech 2, from 1 being the quietest, to 8 being the

loudest.

VX12K015C

Figure 12Q-7

Figure 12Q-8

Tone Operating Condition

Twelve Tones Attempting to make call when vehicle is not within GSM network range, or if

the twelve tones occur after the ignition is turned off, the vehicle is not within

GSM network range.

Two Tones If button is held down for more than one second.

Three tones If button is held down for less than one second.

Five Tones

(After the ignition is turned

on)

Warning that Service Mode is active or a system malfunction has been

detected.

Potential malfunctions:

GSM Module not active. GPS Module not active.

Backup battery is not charged or disconnected.

2.7 RADIO MUTE

Whenever the telematics speaker is activated the radio mute signal is also activated and the telematics module

grounds the radio mute circuit 656 (Yellow/Black wire) causing the circuit voltage to be pulled low, less than 0.2

volts. This low voltage is seen by the radio as a radio mute request, when received, the radio will mute.

F16

O/B

(45) R

(2H)

(43)

VX12K111

TELEMATICS MODULE

GROUND

RADI O MUTE

BATTERY

IG NITION SWITC H

15a 15 50

30 ACC

IGN

START

F31

YB178

YB23

YB44

YR55

YB178

RADIO

MUTE

BATT

RADIO

F23

BATTERY

LOC. E1

R (2H)

YB72 YB73

CELLUAR

TELEPHONE

CONNECTOR

YB178

Figure 12Q-9

2.8 BACKUP BATTERY

The backup battery (1) is located in the left hand

side of the rear compartment and is housed a

bracket attached to the telematics module bracket.

The backup battery will provide power to the

telematics module for approximately 30 minutes in

the event of the ve hic l e bat tery being d isc harge d or

disconn ected. The telematics m odule has a bac k up

battery charging circuit that maintains the backup

battery state of charge. A 3A fuse (2) is used to

protect the backup battery circuitry.

Figure 12Q-10

2.9 BATTERY VOLTAGE

Battery voltage is applied to the telematics module terminal 1 at all tim es via circuit 740 (Orange/Black wire), fuse

F31 and fusible link FS (refer Figure 12Q-11). If the battery voltage f ails below a preset volt age for longer than 30

minutes, the telematics module will transmit a Low Battery Alert to the Holden Assist Centre. Refer 2.2 ALERTS,

Low Batt ery Vo ltage Aler t in th is Sect ion f or f urther inform ation. If the batter y is r em oved th e telem atic s m odule will

transmit a Battery Removal Alert to the Holden Assist Centre. Refer 2.2 ALERTS, Battery Removal Alert in this

Section for further information.

2.10 BACKUP B ATTERY CHARGER

The telematics module constantly monitors both vehicle battery voltage and backup battery voltage. The charging

circuit al lows the back up battery to dra w current of up to 300m A maximum fr om the vehic le batter y. As the batter y

voltages equalise the current drawn will decrease. The charging circuit is only active when the ignition is on, and

can only charge the backup battery to equal the voltage of the vehicle battery.

VX12K106

TELEMATICS MODULE

BATTERY

LOC. E1

GROUND

BACKUP

BATTERY

GROUND

BATTERY

BACKUP

BATTERY

CHARGER

F31

YB178

BACKUP

BATTERY

YR56

YR60YR61

YR55

Figure 12Q-11

2.11 SERIAL DATA

The telem atic s m odule m onitors the auxi liar y seria l dat a circuit 1 220 (G reen/W hite wire) norm al m ode m essage f or

the following information: Ignition Status from the BCM, Airbag Deployed this Ignition Cycle from the SRS SDM

and Vehicle Speed from the PCM. For further information regarding the serial data bus and normal

mode message, refer 1.1 Serial Data Communication in Section 12J-1 Low Series Body Control Module or

Section 12J-2 High Series Body Control Module in this Service Information.

If the telematics module receives a “Remote Unlock” message from the Holden Assist Centre, the telematics

module will request the BCM (via the serial data circuit) to unlock the doors. For further information regarding the

BCM door lock operation, refer Section 12J-1 Low Series Body Control Module or Section 12J-2 High Series

Body Control Module, 1.3 Central Door Locking Systems in this Service Information.

If the telematics module receives a “Immobilise” message from NERCTM, the telematics module will then turn off the

fuel pump relay (refer 2.16 Fuel Pump Relay Drive Circuit in this Section) cutting off the supply of fuel to the

engine and reques t th e BCM ( via the s eri al dat a c irc u it ) to f las h th e ind ic ators . For f urther i nf ormation r egard i ng t he

BCM indicator operation, refer Section 12J-2 HIGH SERIES BODY CONTROL MODULE, 1.4 Theft Deterrent

System in this Service Information.

TELEMATICS MODULE

LOC. E1

BATTERY

YB178

BATTERY

F31

YR55

YB178

BODY

CONTROL MODULE

R/B (1221) TO PCM

TO SRS

TO INSTRUMENTS

ECC, ABS/ETC &

G/W (1220)

W/G (1220)

SERIAL

DATA

MAIN

SERIAL

DAT A AUX.

GROUND

SERIAL

DATA

G/W (1220)

VX12K115

YB174

YB163

YB175

YB164

Figure 12Q-12

2.12 DRIVER’S DOOR JAMB SWITCH

The telematics module uses this input signal to determine if the driver's front door is opened or closed. W hen the

door is opened, the jamb switch earth’s terminal 23 via circuit 126 (Grey/White wire). This causes the voltage at

term inal 23 to be pul led lo w, less tha n 0.2 volts (dr ive r's door o pen). T his lo w volt age at term inal 23 is se en by the

telematics module as the driver's door open input signal. When a driver's door open input signal is received, the

telematics module will switch from its current operating mode to active mode. This signal is also used to initiate

communication with Tech 2 when the telematics module is in pre delivery mode. Refer 2.1 OPERATING MODES in

this Section

2.13 PASSENGER DOOR JAMB SWITCHES

The telematics module uses this input signal to determine if any of the passenger doors are opened or if all

passenger doors are closed. If the right hand rear, left hand front or left hand rear door is open, terminal 10 is

earthed thr ough cir cuit 125 (White wire). This causes the voltage at ter m inal 10 to be pul led lo w, less than 0. 2 volt s

(if any one of the passenger doors is opened). The telematics module sees this low voltage at terminal 10 as the

passengers door op en input sig nal. W hen a passenge rs door ope n input sign al is rec eived, the telematic s module

will switch from its current operating mode to active mode, refer 2.1 OPERATING MODES in this Section.

VX12K105

PASSENGER DOOR

OPEN

DRIVER’S DOOR

OPEN

PASSENGER DOOR

OPEN

12V 12V

12V

LHF

DOOR

JAMB

SWITCH

LHR

DOOR

JAMB

SWITCH

RHR

DOOR

JAMB

SWITCH

DRIVER'S DOOR

OPEN

RHF DOOR

JAMB SWIT CH

GY/W (126)

TELEMATICS MODULE

BODY

CONTROL MODULE

YR55

YB173

YB1

YB1 YB1

W (125)

Figure 12Q-13

2.14 THEFT DETERRENT HORN

The telematics module monitors the theft deterrent horn to determine if the entry deterrent system has been

triggered. If the entry deterrent system has bee n tri gge r ed, th e BCM pu ls es th e ve hic les horns at a r ate of on c e per

second. To pulse the theft deterrent horn the BCM grounds the theft deterrent horn relay drive circuit 1128

(Black/White wire). When the theft deterrent horn relay drive circuit is grounded, the voltage at terminal 15 of the

telema tics module is pulled lo w, less than 0.2 vol ts. The telem atics m odule sees this l ow voltage at terminal 15 as

the entry deterrent system triggered input. If the vehicle entry deterrent system is triggered for longer than 20

seconds, the telematics module will transmit an “Unauthorised Entry Alert” message to the Holden Assist Centre.

For further information regarding the unauthorised entry alert, refer to the Holden Assist Handbook Supplement.

BODY

CONTROL MODULE

B/W

(1128)

THEFT DETERRENT

HORN RE LAY

THEFT

DETERRENT

HORN

O/Y

(1340)

G (129)

VX12K110

TELEMATICS MODULE

BATTERY

LOC. E1

GROUND

THE FT D E TERR ENT

HORN

BATTERY

F31

F21

YB178

YE107

YE2

YE111

THEFT

DETERRENT

HORN A3

YB176

YR55YR55

R (2H)

YB178

Figure 12Q-14

2.15 TELEMATICS ANTENNA

The telematics antenna (1) contains both the GPS

and GSM antennas in one unit, and is located on

the rear parcel shelf, under the rear parcel shelf

trim. The antenna has two leads, one for the GPS

antenna and the other for the GSM antenna.

NOTE: The area directly above the telematics

antenna should be free from obstructions as they

may adversely affect antenna operation and the

system may not have full functionality. Aftermarket

window tinting may also affect the antenna

operation.

GSM ANTENN A

The GSM antenna is capable of transmitting and

receiving both voice and data signals via the GSM

network. The telematics module uses the GSM

network to transmit and receive voice and data.

Signal strength may be affected in locations like

basement car parks or tunnels. However, in most

cases, as the vehicle em erges fr om the obstruction

or re-enters the digital phone network area the

signal will be available again and any stored data

will be trans m itted. T he GSM antenn a is c onnected

to the telematics module by a screw-on type

connector (larger of the two antenna connectors).

VX12K011

Figure 12Q-15

G PS AN TEN NA

The G PS ant enn a re cei ves signa ls f r om s atellit es or bit ing t he e art h a nd tra ns mits these to the t e lematic s module to

determine the vehicles position. Signals from at least three GPS satellites must be received to accurately determine

the vehic le ’s two dimens ion al (2D) pos it io n. S ign als f rom at least f our G PS s atel lit es m us t be rec eive d to ac c ur ately

determine the vehicle’s three dimensional (3D) position. If signals from only three satellites are received, the

telematic s module c annot determ ine the veh icles altit ude. The G PS antenna m ust not be obs cured by an y ob jects,

such as underground car parks, tunnels, bridges or buildings any of these may affect GPS reception. The GPS

antenna is connected to the telematics module by a screw-on type connector (smaller of the two antenna

connectors).

The telematics module uses a principle called triangulation to determine the location of the vehicle, this principle

states that you can determine the location of an object if you know its distance from three known locations. GPS

uses 24 satellites orbiting the earth, the location of each satellite is known at any given time. The satellites

constant l y broadc ast r ad io s ignals , the te lematic s G PS m odule compar es the amount of time it tak es for the s igna ls

from at least three different satellites to reach the GPS module. By converting time into distance, it can calculate

the modules location on earth. The telematics module receives GPS data, decodes it, and transmits the vehicles

location v ia SMS wh en req ues ted b y Holde n Assis t or NERCTM.

GSM

ANTENNA (-)

GSM

ANTENNA (+)

TELEMATICS MODULE

GSM ANTENNA

GSM

MODULE

VX12K119A

GPS ANTENNA

GPS

ANTENNA (-)

GPS

ANTENNA (+)

GPS

MODULE

Figure 12Q-16

2.16 FUEL PUMP RELAY DRIVE CIRCUIT

The PCM energises the fuel pump relay drive circuit via circuit 465 (Green/White wire), the telematics module

term inals 12 and 2 5, c irc uit 497 (Li ght/G re en wire). T he f uel pump relay drive circui t is ground ed thr o ugh c irc uit 152

(Black/White wire) at ground location E3. The telematics module can immobilise the vehicle by opening the fuel

pump relay drive circuit, causing the fuel pump to stop operating. This function can only be activated by the

National Emergency Response Centre (NERC™) under instruction from the Police. For further information refer

2.3 HOLDEN ASSIST REMOTE REQUESTS, Engine Immobilisation in this Section.

E10

J2-09 FUEL PUMP RELAY

CONTROL

FUEL PUMP RELAY

CONTROL

B/BLU

(156)

LOC. E7

LOC. E3

IN - TANK

FU EL PUMP

RELAY

L/G (497)

G/W (465)

TELEMATICS MODULE

V6 POWERTRAIN

CONTROL MODULE

V8 POWERTRAIN

CONTROL MODULE

12V12V

BATTERY

LOC E1

F28

(1040) O (240)

V (120)

B/W(152)

VX12K102

YB199

YB188

YB199, E10

NON S/C V6 ENGINE

YB188, A6

S/C V6 ENG INE

YR55

YE96

YE114

YE110

YB178

YR44

YR32

YB39

YR44

YR32

YE96

YE123

Figure 12Q-17

2.17 WIRING HARNESSES

VX Seri es vehicles equipped with th e telematic s system have specific m ain and bod y harnes ses, and a tele matics

patch harn ess . The telem atic s patch har nes s c onnec t o r 2 (YB178) plugs into th e main harnes s behin d the le f t hand

kick panel trim (view D) and the telem atics patch harness connector 1 (YB177) plugs into the bod y harness at the

bottom of the B pillar (view C). The telematics patch harness is also connected to the telematics module (YR55)

(view B), t he interior rear view mirror (YB186) (view G). T he telematics speaker (view F) is connected to the main

harness connector (YB181).

Figure 12Q-18

3. SERVICE OPERATIONS

When carrying out any service procedure on the v ehicle that involves disconnecting the batter y cables o r

any procedure that may cause the battery voltage to fall below 12 Volts, the telematics module Service

Mode MUST BE EN ABLED. Refer to 4.3 T ECH 2 TEST MODES F4: Program, F2 Operating Mode, F1: Service

Mode in this Section.

If the telematics module service mode is not enabled, a “Battery Removal Alert” will be t ransmitted to the

Holden Assist Centre whenever the battery is disconnected, or a “Low Battery Voltage Alert” when the

battery voltage is low.

3.1 TELEMATICS MODULE ASSEMBLY

REMOVE

1. Using Tech 2, enable the telematics module

service mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

2. Disconnect the negative battery cable from the

battery.

3. Remove the left side rear

compartment wheelhouse carpet, refer to

Section 1A1 BODY in this Service Information.

4. Disconnect telematics module harness

connector (5), GPS antenna connector (3),

GSM antenna connector (4), and the backup

battery harness connector (6).

5. Remove the backup battery harness retaining

clip (7) from the mounting bracket.

6. Loosen the four telematics module assembly

retaining screws (1).

7. Sl ide the contr ol module upward to re lease the

screw heads from the slots in the side inner

panel and remove telematics module

assembly.

Figure 12Q-19

REINST ALL

1. Reverse of the removal, noting the following.

2. Tighten the telematics module assembly

retaining screws to the correct torque

specification.

TELEMATICS MODULE ASSEMBLY

RETAINING SCREWS

TORQUE SPECIFICATION 3 – 3.5 Nm

3. Use Tech 2 to disable the telematics module

Service Mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

NOTE: If the telematics module service mode is

not disabled, the system will not have full

functionality.

3.2 TELEMATICS MODULE

REMOVE

1. Using Tech 2, enable the telematics module

service mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

2. Remove the telematics module assembly.

Refer 3.1 TELEMATICS MODULE

ASSEMBLY in this Section

3. Remove the four telematics module to

mounting bracket retaining screws (1) and

remove the telematics module from the

mounting plate (2).

REINST ALL

1. Reverse of the removal, noting the following.

2. Tighten the t elem atics module r eta ining sc re ws

to the correct torque specification.

TELEMATICS MODULE TO MOUNTING

BRACKET RETAINING SCREWS

TORQUE SPECIFICATION 3 – 3.5 Nm

3. Use Tech 2 to disable the telematics module

service mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

NOTE: If the telematics module service mode is

not disabled, the system will not have full

functionality.

TELEMATICS MODULE CHANGEOVER

PROCESS

If a new telematics Module has been installed into

the vehicle, then this new module must be

registered with Holden Assist, to register this new

module with Holden Assist the following procedure

must be performed.

1. Once the new module has been installed into

the vehic le turn the ignition on and mak e a call

to Holden Ass ist by pressin g the Holden Assist

button until two beeps are heard.

2. When the Holden Assist operator answers

inform the operator who you are and what

dealer you are from, and that you have just

installed a new telematics module into the

vehicle . You will a ls o be require d to pro vi de th e

operator with the complete Vehicle

Identif ication Num ber (VIN) and if the vehic le is

registered, the registration number of the

vehicle.

The new telematics module is now registered to

this vehic le.

VX12K014A

Figure 12Q-20

3.3 BACKUP BATTERY

REMOVE

1. Using Tech 2, enable the telematics module

service mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

2. Remove the telematics module assembly.

Refer 3.1 TELEMATICS MODULE

ASSEMBLY in this Section

3. Disconnect the two backup battery terminals

(4) from the backup battery (5).

4. Remove the six backup battery bracket (6)

retaining screws (7) and remove the backup

battery.

VX12K010

Figure 12Q-21

REINST ALL

1. Reverse of the removal noting the following.

2. Tighten backup battery retaining screws to the

correct torque specification.

TELEMATICS BACKUP BATTERY

RETAINING SCREWS

TORQUE SPECIFICATION 3 – 3.5 Nm

3. Use Tech 2 to disable the telematics module

Service Mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

NOTE: If the telematics module service mode is

not disabled, the system will not have full

functionality.

3.4 TELEMATICS ANTENNA

REMOVE

1. Using Tech 2, enable the telematics module

service mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

2. Disconnect the negative battery cable from the

battery.

3. Remove the rear parcel shelf trim, refer to

1A8 HEADLINING AND REAR END TRIM in

this Service Information.

4. Remove the left side rear

compartment wheelhouse carpet, refer to

Section 1A1 BODY in this Service Information.

5. Loosen and remove the GSM and GPS

antenna connectors from the telematics

module.

6. Remove the telematics antenna lead retaining

clips.

7. Using a commercial available paint scraper

prise the antenna from the rear parcel shelf.

VX12K009

Figure 12Q-22

REINST ALL

1. Ensure the rear parcel shelf to telematics

antenna mating surface is clean.

2. If you are reinstalling the original antenna

remove the used double sided tape, and apply

new double sided tape (3M 4428 or

equivalent), meeting Holden Standar d HN2021

Type 6 to the antenna mating surface.

3. Remove the backing from the double sided

tape.

4. Reinstall the antenna to the rear parcel shelf by

aligning the lead retaining clip (3) into the

retaining clip hole (2), then press down firmly

on the antenna.

5. Reinstall the telematics antenna lead retaining

clips.

6. Reinstall the GSM and GPS antenna

connectors to the telematics module.

7. Reinstall the rear parcel shelf trim, refer to

1A8 HEADLINING AND REAR END TRIM in

this Service Information.

8. Reinstall the left side rear compartment

wheelhouse carpet, refer to Section 1A1

BODY in this Service Information.

9. Reconnect the negative battery cable to the

battery.

10. Use Tech 2 to disable the telematics module

Service Mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

NOTE: If the telematics module service mode is

not disabled, the system will not operate.

VX12K012

Figure 12Q-23

3.5 TELEMATICS SPEAKER

REMOVE

1. Using Tech 2, enable the telematics module

service mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

2. Disconnect the negative battery cable from the

battery.

3. Remove the instrument panel compartment,

refer to Section 1A3 INSTRUMENT PANEL

A ND CONSOLE in this Service Information.

4. Disconnect the speaker wiring harness

connector (3), and remove the connector from

the speaker bracket.

5. Loosen and remove the telematics speaker

bracket retaining screws (1) and remove the

speaker assembly (2).

VX12K015

Figure 12Q-24

REINST ALL

1. Reverse of the removal noting the following.

2. Tighten speaker bracket retaining screws to

the correct torque specification.

TELEMATICS SPEAKER BRACKET

RETAINING SCREWS

TORQUE SPECIFICATION 3 – 3.5 Nm

3. Use Tech 2 to disable the telematics module

Service Mode. Refer to 4.3 TECH 2 TEST

MODES F4: Program, F2: Operating Mode,

F1: Service Mode in this Section.

NOTE: If the telematics module Service Mode is

not disabled, the system will not operate.

3.6 INTERIOR RE AR VIEW MIRROR

REMOVE

1. Remove mirror wiring harness cover (1) by

sliding cover upwards slightly (direction A) and

pull cover outwards (direction B).

VX12K022

Figure 12Q-25

2. Disconnect the interior rear view mirror wiring

harness connector.

VX12K024

Figure 12Q-26

3. Remove the interior rear view mirror retaining

screw and disengage the interior mirror from

the boss on the windscreen by sliding the

mirror (2) upwards.

VX12K023

Figure 12Q-27

REINST ALL

Reinstallation of the interior rear view mirror is the reverse of the removal procedure, noting the following:

Tighten the interior rear view mirror retaining screw to the correct torque specification.

INTERIOR REAR VIEW

MIRROR RETAINING SCREW

TORQUE SPECIFICATION 2.5 – 4.5 Nm

3.7 WIRING DIAGRAMS

For wiring diagram information, refer to Section 12P WIRING DIAGRAMS in this Service Information.

4. TECH 2 DI AGNOSIS FOR TELEMATICS

4.1 BASIC KNOWLEDGE REQUIRED

Before attempting to diagnose the telematics system, you must have a good understanding of electrical system

basics and the use of circuit testing tools. Without this basic knowledge it will be difficult to use the diagnostic

procedures detailed in this Section.

Some elec trical basics, tr oubl eshootin g procedures and h ints as well as the use of circuit testing tools are covered

in Section 12P WIRING DIAGRAMS in the VT Series I Service Information.

Basic Electrical Circuits - You should understand the basic theory of electricity, series and parallel circuits, and

voltage drops across series resistors. You should know the meaning of voltage (Volts), current (Amps), and

resistance (Ohms). You should understand what happens in a circuit with an open or shorted wire (shorted either to

voltage or earth). You should also be able to read and understand a wiring diagram.

Use of Circuit Testing Tools - You should know how to use a jumper lead to test circuits. You should be familiar

with the use of a high in put impedance ( 10 Meg O hm) digita l type multimeter s uc h as tool No. J39200 or e qu ivalent

and be able to measure voltage, current, and resistance. You should be familiar with the proper use of the Tech 2.

4.2 CONNECTING TECH 2

Tech 2, with the appropriate software, cables and

adaptors, when connected to the Data Link

Connector (DLC) is capable of reading telematics

module serial data. The DLC is connected to the

instrument panel lower right hand trim, to the right

of the steering column.

For additional general information on connecting

and operating Tech 2, refer to Section 0C Tech 2

in this Service Information.

1. DLC

2. DLC Adaptor

3. DLC Cable

4. Tech 2

Tech 2 has five test modes for diagnosing the

telematics module. The five test modes are as

follows:

Figure 12H-28

Mode F0: Data Display

In this test mode, Tech 2 displays the status of

inputs and outputs of the telematics module.

Mode F1: Snapshot

In this test mode, Tech 2 captures telematics

module data before and after a forced manual

trigger.

Mode F2: Miscellaneous Tests

In this test mode, Tech 2 performs various tests to

assist in problem isolation during troubleshooting.

Mode F3: Additional Functions

In this test mode, Tech 2 performs a system

function tes t, of the Microp hone, Speak er, End Call

/ Information Button, Holden Assist Button and the

Emergency Button.

Mode F4: Program

In this test mode, Tech 2 allows the programming

of various features by enabling or disabling the

feature or adjusting settings (ie. Speaker Volume).

Body

VX12K120

F0 : Data Display

F1 : Snapshot

F2 : Miscellaneous Tes ts

F3: Additional Functions

F4 : Program

Figure 12Q-29

4.3 TECH 2 TEST MODES

As a prerequisite to this diagnostic section the user must be familiar with the proper use of Tech 2. The following

information illustrates only the telematics module Tech 2 screen displays and provides an explanation of their

function for diagnosing the telematics module. If additional information is required on the operation of Tech 2,

reference should be made to either Section 0C Tech 2 in this Service Information, or the Tech 2 Operators

Manual.

SYSTEM SELECT MENU

With Tech 2 connected to the DLC and turned on,

and the F0: Diagnostics selected from the Main

Menu, the appropriate Model Year and Vehicle

Type must be selected for access to the System

Select Menu. From the System Select Menu,

Select F3: BODY.

This mode contains all functions to test, diagnose,

monitor and program the vehicles body systems

including the telematics module as well as

providing the opportunity to check all DTCs that

may be set in the vehicle.

VX12K121

System S elect Menu

(1) 2001 VX Comm odore

F0: Engine

F1 : Transmission

F2 : Ch assis

F3 : Body

Figure 12Q-30

Body Application Menu

Once F3: BODY has been selected from the

System Select Menu, the Telematics Module can

be selected from the body application menu.

Select Telematics Module and press enter to

continue.

Once the Telematics Module has been selected

and entered, the following Telematics Module

System Identification screen will be displayed,

once the ignition has been turned on (as

requested).

NOTE: If the telematics module pre delivery

mode is enabled, the telematics module will

only communicate with Tech 2 when the

driver’s is open and for 30 minutes after the

driver’s doors has been closed or Tech 2 stops

communicating with the module.

Vehicle Ide ntification

Select one of the following

Body

Body Con trol Mo dule

P ow e rtrai n Inte rfac e M o du le

SRS

Instrument

Electron ic Climate C ontr ol

Tele matic s Mo dule

DTC Check

Other

Tele matic s Mo dule

VX0C056

6 / 8

Figure 12Q-31

System Identification

The Telematics Module System Identification

screen will then display the following information:

Identifier

(Diagnostic Data Identifier)

Partnumber

(telematics module part number)

Production Date

(telematics module production date)

(DD/MM/YY)

BIM Software Version Number

(telematics module Body Interface Module

software version number)

IVU Software Version Number

(telematics module In Vehicle Unit software

version number)

VAP Process Number

(vehicle ass embly plant proc es s num ber)

Code Version

(sof tware vers io n num ber )

Code Index

(software index number)

Barcode

(telematics module barcode number)

TIS Hardware Key Number

(TIS 2000 Hardware Key Number)

VIN Digit 1-10

(Vehicle Identification Number digits 1-10)

VIN Digit 11-17

(Vehicle Identification Number digits 11-17)

Press the Confirm soft k ey, the telematics m odule

application menu will then be displayed.

Body

(1) 2001 V X Commodore

Tele matic s Modu le

Identifier

Partnumber

Production Date

BIM Software Versio n Number

IVU Software Ve rsion Nu m ber

VA P Pr oce ss N umb er

Identifier

101

92102690

200200

140000

VX0C062

Confirm

1 / 8

Figure 12Q-32

Application Menu

The following functions will now be available:

F0: Data Display

F1: Snapshot

F2: Miscella neous Tests

F3: Additional Functions

F4: Program

Body

VX12K120

F0 : Data Display

F1 : Snapshot

F2 : Miscellaneous Tes ts

F3: Additional Functions

F4 : Program

Figure 12Q-33

F0: DATA DISPLAY

F0: Data List

In this test mode, Tech 2 checks if the telematics module is actually receiving an input or inputs from the

appropriate sensor/s or antenna/s. If the sensor/s or antenna/s input/s are not being received, then carry out the

relevant system diagnosis as defined in the following chart.

Typical data list parameter nominal values, relevant telematics module pin number and specific diagnostic charts

are detailed in the following chart. If the actual data does not match the nominal value, then refer to the specific

diagnostic chart for that data parameter.

Data Parameter Display Pin No Nominal Values Diagnostic

Chart

Battery Voltage VOLTS 1 Should be within 0.5 volts of actual

vehicle battery voltage. Refer

Vehicle Battery Voltage

Diagnostic Chart in this

Section.

Backup Battery

Voltage Volts 13, 26 Backup Battery Voltage, should be

greater than 11.5 volts. Refer Backup Battery

Diagnostic Chart, in this

Section.

Backup Battery

Charger Active / Inactive 13, 26 Backup Battery Charger, will display

Active when the telematics backup

battery is being charged via the

telematics backup battery charging

circuit.

Refer Backup Battery

Diagnostic Chart in this

Section.

Ignition Switch On / Off SD Ignition Switch status, as read from

the serial data circuit normal mode

message. Should display On when

the ignition switch is on.

Refer No Serial Data

Diagnostic Chart in this

Section.

Operating Mode Pre-Delivery

Active

Service

Int Telematics module Operating Mode.

When the system is operating, should

display Active.

Refer 2.15 OPERATING MODES in

this Section for further information.

Refer

4.3 TECH 2 TEST MODES

F4: Program, F2: Operating

Mode, in this Section.

GPS Module Inactive / Active Int GPS Module status, should di splay

Active when the GPS engine is

operational.

Refer No GPS Signal

Diagnostic Chart in this

Section.

GPS Antenna Status Okay

Open Circuit

Short Circuit

Int Displays GPS antenna circ uit status,

should display Okay.

If Open Circ uit or Short Circuit is

displayed refer to diagnostic chart.

Refer No GPS Signal

Diagnostic Chart in this

Section.

2D or 3D GPS

Position Fix No / Yes Int Will display YES in the GPS has a 2D

or 3D satellite position fix. Will vary

depending upon vehicle and satellite

locations and time of day.

Refer No GPS Signal

Diagnostic Chart in this

Section.

GPS Satellites Not Visible /

Visible Int Should displa y Visible when at least

one GPS satellite has been detected.

Will vary depending upon vehicle and

satellite locations and time of day.

Refer No GPS Signal

Diagnostic Chart in this

Section.

GSM Module Active / Inactive Int Should display Active if GSM Module

is active and registered on the mobile

phone network.

Refer No GSM Signal

Diagnostic Chart in this

Section.

GSM Signal Strength NO SIGNAL OR 1 -

32 Int GSM Signal Strength, will vary from

1 – 32 depending on vehicle position

and GSM coverage. If No Signal is

displayed refer to diagnostic chart.

Refer No GSM Signal

Diagnostic Chart in this

Section.

SPEAKER VOLUME 1 - 8 11, 24 The speaker volume can be

programmed using Tech 2, 1 being

the quietest, to 8 being the loudest.

This displays the current speaker

volume setting.

Refer

4.3 TECH 2 TEST MODES

F4: Program, F1: Speaker

Volume Adjustment in this

Section.

SD = Serial Data, Int = Internal Telematics Module Value

Data Parameter Display Pin No Nominal Values Diagnostic

Chart

Fuel Pump Relay

Drive Circuit Active / Inactive 12, 25 Fuel pump relay drive circuit, should

be active at all times. Should only

display Inactive if remote

immobilisation has been requested.

Refer Fuel Pump Relay

Drive Circuit Diagnostic

Chart in this Section.

FUEL PUMP RELAY

DRIVE CIRCUIT

VOLTAGE

Volts 12

Voltage at terminal 12 of the

telematics module, should be at least

12 volts for three seconds when the

ignition is first turned on, t he engine

is cranking or when the engine is

running.

Refer Fuel Pump Relay

Drive Circuit Diagnostic

Chart in this Section.

Ke ypad Supply

Voltage On / Off 20 Displays the commanded state of the

interior rear view mirror key pad

supply voltage. Should be On

whenever this system is in active or

service mode.

Refer

4.3 TECH 2 TEST MODES

F3: Additional Functions, F1:

Function Test in this

Section.

Ke ypad Signal

Voltage Volts 19

Signal voltage from the resistor

encoded keypa d in the inter ior rear

view mirror. Will vary depending upon

which button is depressed.

Emergency Button 3.8 Volts.

Holden Assist Button 2.3 Volts.

End Call / Info Button 0.7 Volts.

Note: This will make a call to the

Holden Assist Centre.

The operation of this button

should only be tested using the

F1: Function Test.

Refer

4.3 TECH 2 TEST MODES

F3: Additional Functions, F1:

Function Test in this

Section.

End Call / Information

Button On / Off 19 End Call / Information Button status,

should display On when button is

depressed.

Note: This will make a call to the

Holden Assist Centre.

The operation of this button

should only be tested using the

F1: Function Test.

Refer

4.3 TECH 2 TEST MODES

F3: Additional Functions, F1:

Function Test in this

Section.

Holden Assist Button On / Off 19 Holden Assist Button status, should

display On when button is

depressed.

Note: This will make a call to the

Holden Assist Centre.

The operation of this button

should only be tested using the

F1: Function Test.

Refer

4.3 TECH 2 TEST MODES

F3: Additional Functions, F1:

Function Test in this

Section.

Emergency Button On / Off 19 Emergency Button stat us, sho uld

display On when button is

depressed.

Note: This will make a call to the

National Emergency Response

Centre.

The operation of this button

should only be tested using the

F1: Function Test.

Refer

4.3 TECH 2 TEST MODES

F3: Additional Functions, F1:

Function Test in this

Section.

Red Status LED On / Off 22 Displays the commanded state of the

interior rear view mirror red status

LED.

Refer Status Indicators Do

Not Illuminate Diagnostic

Chart in this Section.

Green Status LED On / Off 21 Displays the commanded state of the

interior rear view mirror green status

LED.

Refer Status Indicators Do

Not Illuminate Diagnostic

Chart in this Section.

SD = Serial Data, Int = Internal Telematics Module Value

Data Parameter Display Pin No Nominal Values Diagnostic

Chart

Indicator Drive On / Off SD Display should change from Off to

On when the telematics module is

commanding the indicators On.

Refer 4.3 TECH 2 TEST

MODES F2:

MISCELLANEOUS TESTS

F7: indicators in this Section.

Theft Deterrent Horn On / Off 15 Displays the commanded state of

the theft deterrent horn. Refer Theft Deterrent Horn

Circuit Diagnostic Chart in

this Section.

Driver’s Door DOOR CLOSED /

DOOR OPEN 23 Driver’s door jamb switch status,

should display Door Open when

the driver’s door is open.

Refer Driver’s Door Jamb

Switch Circuit Diagnostic

Chart in this Section.

Passenger Doors Door Closed /

Door Open 10 Passenger door jamb switch status,

should display Door Open when

any passenger door is open.

Refer Passenger Door Jamb

Switch Circuit Diagnostic

Chart in this Section.

Radio Mute Active / Inactive 8 When Active, radio mute is

required by the telematics module. Refer Radio Mute Diagnostic

Chart in this Section.

Entry Alert Delay Seconds Int Displays the amount of time in

seconds after the theft deterrent

system is activated that an

Unauthorised Entry Alert (UEA) is

sent to Holden Assist.

N/A

Low Battery Alert

Delay Seconds Int

Displays the amount of time in

seconds after the battery voltage

has reached the Low Battery Alert

(LBA) threshold that a LBA is sent

to Holden Assist.

N/A

Low Battery Alert

Threshold Volts Int

Displays the battery voltage at

which a Low Battery Alert (LBA) will

be sent to the Holden Assist centre.

N/A

SD = Serial Data, Int = Internal Telematics Module Value

F1: SNAPSHOT

In this mode, TECH 2 captures data before and

after a forced manual trigger.

The purpose of the SNAPSHOT test mode is to

help isolate an intermittent or transient problem by

storing telematics module data parameters just

before and just after a problem occurs.

VX12K123

Sna psh ot O ptions

Trigg er Ty pe : M an ual Trigge r

Trigg er Point : Ce nter

F0 : Manual Trigger

F4 : Beginning

F5 : Center

F6 : End

Record

Snapshot Review

Data

Figure 12Q-34

F2: MISCELLANEOUS TESTS

Miscel laneous tes ts al lo ws f or the tes ting of var ious

components of the telematics system, such as the

status LEDs, radio mute or fuel pump circuit to

assist in problem isolation during troubleshooting.

On entry to each miscellaneous test all other

outputs are turned off. Each test will run for four

seconds. Further activation of the soft key will run

the test for another four seconds. Once

miscellaneous tests has been selected, the

follo wing tes ts will be av ailable.

VX12K122

M isc ellane ous Tests

F0: Fuel Pump Circuit

F1: Red Status LED

F2 : G reen Status LED

F3 : Keypad Supply Voltage

F4: Radio Mute

F5: Backup Battery Charger

F6 : Un lock Doors

F7 : Indicators

Figure 12Q-35

F0: Fuel Pump Circuit

Provides a means of activating and deactivating

the fuel pump relay drive circuit by pressing the

Inactive or Active soft keys. By scrolling to the

screen opposite you can observe the fuel pump

relay circuit status and voltage.

When inactive the telematics module opens the

fuel pump relay drive ground circuit and the fuel

pump will stop. The fuel pump relay drive circuit will

change form approximately 12 Volts engine

running to 1.4 Volts when the engine is not

running.

Pressing the Quit soft key will exit the test.

Precondition: System not in pre delivery mode.

If this miscellaneous test is unsuccessful

replace the telematics module refer

3.2 Telematics Module in this Section.

Fu el Pump Circuit

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Fuel Pu m p Relay Drive C

Key Pad Supply Voltage

Keypad s ignal Vo ltage

End Call/I nforma tion Bu

Ho lden Assist Button

Em erg ency Button

Fuel Pu m p Relay Drive C

Active

0.7 V

13.8 V

Off

Active

VX12K124

Quit

17 / 29

Inactive Active

Figure 12Q-36

F1: Red Status LED

Provid es a means of turnin g the red status LED on

and off using the On and Off soft keys.

Pressing the Quit soft key will exit the test.

Precondition: System not in pre delivery mode.

If this miscellaneous test is unsuccessful refer

Status Indicator LEDs Do Not Illuminate

diagnostic chart in this Section.

Red Status LED

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Battery Voltage

Backup Battery Voltage

Backup Battery Charger

Ign itio n Sw itch

Operating Mode

GPS Module

GPS Antenna Status

Red Status LED

13.8 V

Active

Okay

Active

Off

VX12K125

Quit

1 / 29

Off On

Figure 12Q-37

F2: Green Status LED

Provides a means of turning the green status LED

on and off using the On and Off soft keys.

Pressing the Quit soft key will exit the test.

Precondition: System not in pre delivery mode.

If this miscellaneous test is unsuccessful refer

Status Indicator LEDs Do Not Illuminate

diagnostic chart in this Section.

Gr een Status LED

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Battery Voltage

Backup Battery Voltage

Backup Battery Charger

Ign itio n Sw itch

Operating Mode

GPS Module

GPS Antenna Status

Gr een Status L ED

13.8 V

Active

Okay

Active

Off

VX12K126

Quit

1 / 29

Off On

Figure 12Q-38

F3: Keypad Supply Voltage

This test provides the means of turning the supply

voltage from the telematics module to the keypad

on and off using the On and Off soft keys. When

the keypad supply voltage is turned off the keypad

illumination will go out and the keypad buttons will

not function.

Pressing the Quit soft key will exit the test.

Precondition: System not in pre delivery mode.

If this miscellaneous test is unsuccessful refer

Status Indicator LEDs Do Not Illuminate

diagnostic chart in this Section.

Keypad S upply Voltage

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Battery Voltage

Backup Battery Voltage

Backup Battery Charger

Ign itio n Sw itch

Operating Mode

GPS Module

GPS Antenna Status

Keypad S upp ly Voltage

13.8 V

Active

Okay

Active

VX12K127

Quit

1 / 29

Off On

Figure 12Q-39

F4: Radio Mute

Provides a means of activating and deactivating

the telematics radio mute circuit. To activate the

radio mute press the Active soft key, to deactivate

the radio mute press the Inactive soft key.

Precondition: System not in pre delivery mode.

If this miscellaneous test is unsuccessful refer

Radio Mute Circuit diagnostic chart in this

Section.

Radio Mute

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Battery Voltage

Backup Battery Voltage

Backup Battery Charger

Ign itio n Sw itch

Operating Mode

GPS Module

GPS Antenna Status

Radio Mute

13.8 V

Active

Okay

Active

Inactive

VX12K128

Quit

1 / 29

Inactive Active

Figure 12Q-40

F5: Backup Battery Char ger

Provides a means of activating and deactivating

the telematics backup battery charging circuit. To

activate the backup battery charger press the

Active soft key, to inactivate the backup battery

charger press the Inactive soft key.

Precondition: System not in pre delivery mode.

If this miscellaneous test is unsuccessful refer

Backup Battery diagnostic chart in this Section.

Backup Battery Charger

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Battery Voltage

Backup Battery Voltage

Backup Battery Charger

Ign itio n Sw itch

Operating Mode

GPS Module

GPS Antenna Status

Backup Battery Charger

13.8 V

Active

Okay

Active

VX12K129

Quit

1 / 29

Inactive Active

Figure 12Q-41

F6: Unlock Doors

Provides a means of locking and unlocking the

doors.

Precondition: System not in pre delivery mode.

When the Lock soft key is pressed, Tech 2 will

send a lock command to the BCM via the serial

data bus. On receiving this request the BCM will

then lock all doors.

NOTE: It is not possible for the telematics

module to lock the doors. To lock the doors,

Tech 2 sends the lock command to the BCM,

the BCM will then lock the doors.

W hen the Unlock soft k e y is depres sed T ech 2 will

request the telematics module to send an unlock

request to the BCM via the serial data bus. On

receiving this request from the telematics module

the BCM will then unlock all doors.

If this miscellaneous test is unsuccessful refer 2

Diagnosis in Section 12J-1 Low Series Body

Control Module or Section 12J-2 High Series

Body Control Module in this Service Information.

Unlock Doo rs

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Press L ock or Unlock!

VX12K130

Quit UnlockLock

Figure 12Q-42

F7: Indicators:

Provid es a m eans of caus ing the i ndic ators to flas h

On and Off.

Precondition: System not in pre delivery mode.

When the On soft key is depressed Tech 2 will

request the telematics module to send an

indicators on off request to the BCM via the serial

data bus. On receiving this request the BCM will

then flash the indicators on and off.

When the OFF soft key is depressed Tech 2 will

request the telematics module to stop sending

indicators on off request to the BCM.

If this miscellaneous test is unsuccessful refer 2

Diagnosis in Section 12J-1 Low Series Body

Control Module or Section 12J-2 High Series

Body Control Module in this Service Information.

Indicators

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Press O n to Flash Indicators!

VX12K155

Quit OnOff

Figure 12Q-43

F 3: ADDITIONAL F UNCTIONS

In this test mode the following function test is

available:

F1: Function Test

When this test is initiated the telematics module

checks the functionality of the following:

microphone circuit, speaker circuit and the keypad

buttons. During this test you will be requested to

press each of the keypad buttons. Each button

must be pressed before the function test is

completed, with the function test taking 45

seconds.

NOTE: When the keypad buttons are pressed

during the function test, the telematics will not

make any calls, this allows you to test the keypad

buttons without making a call to the Holden Assist

Centre or NERCTM.

If any of the components fail during the function

test, you should refer to the specific diagnostic

chart for each component as detailed in the table at

the end of this test.

Additional Functions

VX12K138

F0: Function Test

Figure 12Q-44

Once F1: Function Test has been selected the

screen opposite will be displayed. Once you have

read the information on the screen press the

Confirm soft key to continue. You will be required

to press al l t hr ee keypad b uttons ind i vid ua lly durin g

this test.

Confirm

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K140

Du ring the Fu nction Test You M ust Press

All Th ree Keypad Bu ttons

Func tion Test

Figure 12Q-45

Tech 2 will then request that you press the End

Call / Information Button. You will be given five

seconds to press the button and Tech 2 will then

display Please Wait before automatically moving

on to the next screen.

Confirm

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K140

Pres s En d C all / Inform a tion Button

Func tion Test

Figure 12Q-46

Tech 2 will then request that you press th e Holden

Assist Button. You will be given five seconds to

press the button and Tech 2 will then display

Please W ait before automatically moving on to the

next screen.

Confirm

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K141

Press Ho lden A ssist Button

Func tion Test

Figure 12Q-47

Tech 2 will then request that you press the

Emergency Button. You will be given five seconds

to press the button and Tech 2 will then display

Please W ait before automatically moving on to the

next screen.

Confirm

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K142

Press E mergen cy Button

Func tion Test

Figure 12Q-48

Tech 2 will then display the results of the function

test.

If any of the components fail the function test you

should refer to the specific diagnostic chart for

each component as detailed in the following table.

Confirm

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K143

Func tion Test

Microphone

Speaker

End Call / In form ation But

Ho lden Assist Button

Em erg ency Button

Short Circuit

Open Cir cuit

Not Okay

Okay

Figure 12Q-49

Function Test Failure Diagnostic Charts

Failure Description Function Test Failure

Diagnostic Chart

Microphone Open or Short

Circuit The telematics m odule has detecte d that

there was and open or short in the

telematics microphone circuit during the

function test.

Refer to Microphone Open or

Short Circuit Diagnostic Chart in

this Section.

Speaker Open or Short Circuit The telematics module has detected that

there was and open or short in the

telematics speaker circuit during the

function test.

Refer to the Speaker Open or

Short Circuit Diagnostic Chart in

this Section.

Emergency Button Not Okay The telematics module has detected that

the Emergency Button was not pressed

during the function test.

Refer to the Emergency Button

Not Okay diagnostic Chart in this

Section.

Holden Ass ist Butto n Not Okay T he telematics m odule has detec te d that

the Holden Assist Button was not

pressed during the function test.

Refer to the Holden Assist Button

Not Okay Diagnostic Chart in this

Section.

End Call / Information Button

Not Okay The telematics m odule has detecte d that

the End Call / Information Button was

not pressed during the function test.

Refer to the End Call / Information

Button Not Okay Diagnostic Chart

in this Section.

F4: PROGRAM

In this mode, Tech 2 allows the programming of the

telematics module. When the Program option is

selected, the following three choices will be

available:

F0: Program Code Index

F1: Speaker Volume Adjustment

F2: Operating Mode

VX12K132

Program

F0 : Progra m C ode Index

F1 : Spe aker Volume Ad justment

F2 : Operating Mode

Figure 12Q-50

F0: Program Code Index

In this mode, the code index and programmed

code version are displayed, as well as providing

the operator the option of reprogramming the code

version.

Code Index: The code index identifies the

telematics software level. A higher number

indicates the latest ver s i on of sof tware.

Code Version: The code version identifies the

calibration level. Each software level may have

different code versions, a higher number indicates

the latest versi on of calibr at ion.

Precondition: System not in Pre Delivery Mode.

Once F0: Program Code Index has been sel ected

the screen opposite showing the current code

index and code version numbers will be displayed.

If you wish to change the software level, press the

Modify soft key.

Modify Okay

Co de Inde x

Co de Ve rsion 1

Co de Inde x

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K153

Figure 12Q-51

You will then be r equested to enter the c ode i ndex.

Once the code index has been entered using the

numerical keypad, press the Enter key to program.

NOTE: Leading zeros will have to be entered.

Code Index

Enter Ecu Code Index

001

Co de Inde x

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K161

Figure 12Q-52

Model Code Index

VX 1

WH 1

F1: Speaker Volume Adjustment

This programm ing mode allows you to program the

speaker volume from one to eight, one being the

quietest and eight being the loudest.

Precondition: System not in Pre Delivery Mode.

Once F1: Sp eaker Volume Adjustment has been

selected the s creen oppos it e wil l be displayed. T he

default audio level is f ive. If you wish to chan ge the

audio level, press the Modify soft key.

VX12K152

Program

F0 : Progra m C ode Index

F1 : Spe aker Volume Ad justment

F2 : Operating Mode

Figure 12Q-53

When the screen opposite is displayed enter the

audio level required from 1 – 8 and the press

ENTER to continue.

Spe aker Volum e Ad justm en t

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Enter Audio Level (1-8)

Press ENTER key to con tinue

VX12K134

Figure 12Q-54

To progr am the audio l evel you have ent ered pres s

the Okay soft key. Tech 2 will then display

Programming Active please wait, before returning

to the Program Menu. If you have entered an

incorrect value press the Not Okay soft key to

return to the previous screen.

Not Okay Okay

Spe aker Volum e Ad justm en t

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

Pro gram Au dio Lev el ?

VX12K135

Figure 12Q-55

F2: Operating Mode

This programm ing mode allows you to program the

system operating mode. There are two

programming options are available.

F0: Pre Delivery Mode

F1: Service Mode

Operating Mo de

VX12K136

F0 : Pre D elivery Mod e

F1 : Service Mode

Figure 12Q-56

F0: Pre Delivery Mode

In this mode, the telematics module pre delivery

mode can be enabled or disabled. Vehicles will be

delivered to the dealer with the pre delivery mode

enabled. With the pre delivery mode enabled the

telematics system is turned off. The pre delivery

mode must be disabled using this programming

function during the pre delivery inspection.

NOTE: When in pre delivery mode the

telematics module will only communicate with

Tech 2 when the driver’s is open and for 30

minutes after the driver’s doors has been

closed or T ech 2 stops commun icating w ith the

module.

Once F0: Pre Delivery has been selected, Tech 2

will request that you “Please get programming

approval from TIS”. Refer Section 0C TECH 2,

ENABLING PROGRAMMING in this Service

Information.

Once enable programming has been successful,

return to and select F0: Pre Delivery Mode and

Tech 2 will continue to the following screen.

Confirm

Pre D eliv ery Mode

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K148

Please ge t prog ram m ing appr oval from

TIS!

Figure 12Q-57

The current telematics module operating mode will

be displayed. If you wish to enable or disable the

pre deliver y mode pres s the Modify soft key, if you

do not wish t o modify the operating mode pres s the

Abort soft key.

Abort Modify

Operating Mode Pre Delivery

Pre D eliv ery Mode

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K149

Figure 12Q-58

To disable the pre delivery mode press the Disable

soft key. The pre delivery mode will be disabled

and the telematics module will be fully functional.

NOTE: When pre delivery mode is disabled

service mode will be automatically enabled.

To enable the pre delivery mode press the Enable

soft key. The pre delivery mode will be enabled

and the telematics module will not be functional.

Tech 2 will then display programming in progress,

once program m ing has be en completed T ech 2 wil l

return to the Operating Mode menu.

Disable Enable

Pres s En able Or Disable S oft Ke y To

Program!

Pre D eliv ery Mode

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K150

Figure 12Q-59

F1: Service Mode

In this mode, the telematics module service mode

can be enabled and disabled.

Precondition: System not in pre delivery mode.

Once F1: Service Mode is selected the current

operating mode will then be displayed.

Operating Mo de

VX12K151

F0 : Pre D elivery Mod e

F1 : Service Mode

Figure 12Q-60

If you wish to enable or disable the service mode

press the Modify soft key. If you do not wish to

modify the operating mode press the Abort soft

key.

Abort Modify

Service Mode

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K137

Operating Mode Active

Figure 12Q-61

To dis able the ser vice m ode pres s the Disable soft

ke y. T o enable the ser vice m ode press the Enable

soft key. Tech 2 will then display programming in

progress. Once programming has been completed

Tech 2 will return to the Operating Mode menu.

Disable Enable

Service Mode

(1) 2001 V X Commodore

Electronic Syste m : Telem atics Modu le

VX12K138

Pres s En able or Disab le Soft K ey To

Program

Figure 12Q-62

5. DIAGNOSIS

The General Information contained in this Section is where to start all system diagnosis. Once you have read

and understood the General Information Section, which contains reference material: wiring diagrams,

control module terminal end views and nominal voltages, and component locations. (Remember, this

information is for reference; do not start diagnosis using these pages). Always start diagnosis on the page titled

On-Board Diagnostic System Check. This check first verifies that the diagnostic circuits are operating properly

and then sends you to the correct chart for diagnosis.

If the initial steps in the On-Board Diagnostic System Check reveal a problem, it will direct you to the appropriate

diagnostic chart.

5.1 BASIC KNOWLEDGE AND TOOLS REQUIRED

To us e the Servic e Inf orm ation eff ective ly, you sho uld unders tand the basic theor y of electr ic ity, s eries and par allel

circuits, and voltage drops. You should know the meaning of voltage (Volts), current (Amps), and resistance

(Ohms). You should understand what happens in a circuit with an open or shorted wire (shorted either to

voltage or ground). You should also be able to read and understand a wiring diagram, refer to

Section 12P WIRING DIAGRAMS in the VT Seri es 1 Servic e Inf ormation.

To per f orm s ystem diagnos is , th e us e of a Tech 2 is re quir e d. Tech 31 or a dig ita l vo lt-ohmm eter with 10 megohms

impedanc e, a t es t l ig ht, an d j umper wir es ar e a ls o re q uir ed. Ple as e bec ome acqu aint ed with the too ls a nd th eir use

before attempting to diagnose a vehicle.

Exercise care when taking readings from wiring harness connectors. It is preferred that the back probing method

with individual connectors is employed wherever possible, to avoid terminal damage and subsequent connection

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

connectors with incorrect sized multimeter connections, use the adaptors contained in connector test adaptor kit

KM-609. T his will pre ven t an y possib ilit y of spread ing or dam aging wir ing har ness term inals .

Testing of the various systems will also involve gaining access to specific wiring harness connectors. For the

location of these connectors, refer to Section 12P WIRING DIAGRAMS in this Ser vice Information.

5.2 DIAGNOSTIC PRECAUTIONS

The following requirements must be observed when working on vehicles:

1. 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.

2. Disconnect the negative battery cable before removing any system component.

3. Never start the engine without the battery being connected correctly.

4. Never separate the battery from the on board electrical system while the engine is running.

5. When charging the battery, disconnect it from the vehicle's electrical system.

6. Nev er subject t he any tele matics module to temperat ures above 8 0 degrees C i.e. paint o ven. Alwa ys remove

the telematics module first, if this temperature is to be exceeded.

7. Ensure that all cable harness plugs are connected solidly and that battery terminals are thoroughly clean.

8. The harness con nectors are des igned to f it in onl y one wa y, forc ing connect ors into place is not n ecessar y if it

is being ins ta lled with t he proper or ienta t io n. Fa il ur e to tak e c ar e to match the ind ex ing t abs a nd s lo ts to e ns ur e

the connector is being installed correctly can cause dam age to the connector, the telematics module, or other

vehicle components or systems.

9. Never connect or disconnect telematics module cable harness connectors when the ignition is switched on.

10. Before attempting any electric arc welding on the vehicle, disconnect the battery leads and the telematics

module connectors.

11. W hen steam c leaning en gines, do no t direc t the s team cleaning no zzle a t s ystem components . If this happens ,

corrosion of the terminals can take place.

12. Use only the test equipment specified in the diagnostic charts, since other test equipment may either give

incorrect results or damage good components.

13. All v olt ag e measur em ents us ing a vol tmeter m us t us e a d igital v oltmeter with a n i nter na l impedanc e r at ing of at

least 10 million ohms per volt (10 meg ohms).

14. W hen a test light is spec ifie d, a lo w-power tes t lig ht must be us ed. Do not use a hig h - watta ge tes t light. W hile

a particu lar brand of tes t light is not sugges ted, a sim ple test on an y test li ght will ensure it to be OK for circ uit

testing. Connect an accurate ammeter (such as the high-impedance digital multimeter) in series with the test

light being tested, and power the test light-ammeter circuit with the vehicle battery.

If the ammeter indicates less than 3/10 amp current flow (0.3 A or 300 mA), the test light is OK to use.

If the ammeter indicates more than 3/10 amp current flow (0.3 A or 300 mA), the test light is NOT OK to use.

Blocking Drive Wheels

The vehicle drive wheels should always be blocked and the parking brake firmly applied while checking the system.

Visual/Physical Inspection

A careful visual and physical inspection must be performed as part of any diagnostic procedure. This can

often lead to fixing a problem without further steps. Inspect all electrical wires f or correct routing, pinches, cuts, or

disconnections. Be sure to inspect wires that are difficult to see. Inspect all the wires for proper connections,

burned or chafed spots, or contact with sharp edges or hot exhaust manifolds. This visual/physical inspection is

very important. It must be done carefully and thoroughly.

5.3 DIAGNOSTIC CHART

The diagnostic charts are design ed to provide fast and efficient m eans of fault location f or all functions associated

with the te lematics m odule. Each diagnos tic chart use s 2 pages; a chart on th e right side pag e, and a facing pag e

on the left side page. The left side "facing page" contains pertinent information, and circuit diagrams. The chart

steps are explained by the corresponding numbered paragraph on the left side facing page.

When diagnosing any problem, always begin with the On-Board Diagnostic System Check. The On-Board

Diagnostic System Check will lead you to the other charts. DO NOT GO DIRECTLY TO A SPECIFIC CHART or

false dia gn os is an d rep lac e ment of ser viceabl e p ar ts coul d r es ult. After a f ault is cor rec ted a nd al l DTCs hav e bee n

cleared, repeat the On-Board Diagnostic System Check to assure that the proper repairs have been made.

The box at the top of the left page contains a circuit diagram showing the components involved in each circuit.

Immediately below the box is a brief circuit description. On the facing right hand page a troubleshooting chart for

diagnosing conditions. Step numbers on the right-hand page next to the action boxes in the chart relate to the

items in the Test Description on the left-hand page. These items provide an explanation of each test in the chart.

The facing right hand page also contains a three quarter view of the connectors that are listed in the diagnostic

charts.

The appropriate step in any of the trouble shooting chart will instruct you either to make a specific repair or to

continue diagnosis. If further diagnosis is needed, the step will specify where to continue.

The Yes or No column in any diagnostic chart will instruct you either to make a specific repair or to continue

diagnosis. If further diagnosis is needed, the Yes or No column will specify where to continue.

If the condition is intermittent, the trouble shooting chart will direct you to the diagnostic aids on the facing page.

This Section gives suggestions for diagnosing intermittent conditions and explains how some faults can occur.

Remember, charts are for solving active conditions, not intermittent conditions.

Figure 12Q-63

5.4 STRATEGY BASED DIAGNOSTICS

The s trategy based d iagnos tic is a un iform appr oach to r epair all E lectrica l/Electr onic s ystem s. The dia gnostic flow

can always be used to resolve an Electrical/Electronic system problem and is a starting point when repairs are

necessar y. The steps below ar e defined to instruc t the techn ician ho w to proceed with a diagn ostic proc ess. Ste ps

below also refer to step numbers found on the Strategy Based Diagnostic chart.

1. Verify the Driver Concern: To verify the driver concern, the technician should know the normal operation of

the system.

2. Preliminary Check: Conduct a thorough visual and operational inspection, review the service history, detect

unusual sounds or odours, and gather diagnostic trouble code information to achieve effective repair.

3. Service information (Manual) System Check(s): System checks verif y proper operation of the system. This

will lead the technician in an organised approach to diagnostics.

4. Check Bulletins and Other Service Information: This should include, Service Techlines, All Dealer letters,

and Service T r ain ing Pu bl icatio ns .

5. Service Diagnostics (Paper/Electronic)

5.1 DTC Stored: Follow the designed DTC chart exactly to make an effective repair.

NOTE: The telematics module does not have any Diagnostic Trouble Codes.

5.2 Symptom, No DTC: Select the symptom from the symptom charts and follow the diagnostic paths or

suggestions to complete the repair, or refer to the applicable component/system checks in Section 6C3-2C

in the Service Information.

5.3 No Published Diagnostics: Analyse the complaint and develop a plan for diagnostics. Utilise the wiring

diagrams and theory of operation.

Call Technical Assistance for similar cases where repair history may be available. Combine technician

knowledge with efficient use of the available service information.

5.4 Intermittent faults: Conditions that are not always present are intermittent. To resolve intermittence,

perform the following steps:

5.4.1 Observe history DTCs, DTC modes and Freeze Frame data if available.

5.4.2 Evaluate the symptoms and conditions described by the driver.

5.4.3 Use a check sheet or other method to identify the circuit or electrical system component.

5.4.4 Follow the suggestions for intermittent diagnosis found in the service documentation.

The Tech 2, Tech 31 and MM have data capturing capabilities that can assist in detection of intermittents.

5.5 Vehicle Operates As Designed/No Trouble Found: This conditi on exists when the veh icle is f ound to be

operating normally. The condition described by the driver may be normal. Verify against another vehicle

that is operating normally. The condition may be intermittent. Contact Technical Assistance if the concern

is common. Verify the complaint under the conditions described by the driver before releasing the vehicle.

6. Re-examine the Concern: When the complaint cannot be successfully found or isolated, a re-evaluation is

necessary. The complaint should be re-verified and could be intermittent or normal as per step 5.3 or 5.5.

7. Repair and Verific ation Test s: After is olating th e cause, the r epair sho uld be m ade. Then v alidate for pr oper

operation and verify that the symptom has been corrected. This may involve road testing or other methods to

verify the complaint has been resolved under the following conditions:

• Conditions noted by the driver.

• If a DTC was diagnosed, verify a repair by duplicating conditions present when a DTC was set.

5.5 ON-BOARD DIAGNOSTIC SYSTEM CHECK

After the visual/physical vehicle inspection, the On-Board Diagnostic System Check is the starting point

for all diagnostic procedures or finding the cause of a system malfunction or failure.

All Diagnostic procedures must always begin with the On-board Diagnostic System Check.

Diagnostic procedures must begin with the On-Board Diagnostic System Check, which represents an organised

approach for identifying system problems.

The ON-BOARD DIAGNOSTIC SYSTEM CHECK makes an initial check of the system, then will direct the

technician to other charts in the Service Information. It must be used as a starting point for all procedures. The

entire diagnostic section in the Service Information is set up in a specific order, that is, the ON-BOARD

DIAGNOSTIC SYSTEM CHECK will lead the technician to other charts, and those charts may lead to still other

charts. THE SEQUENCE MUST BE FOLLOWED. The telematics module uses many input signals and controls

many output functions. If the correct diagnostic sequence is not followed, incorrect diagnosis and replacement of

good parts may happen.

Diagnostic charts incorporate diagnosis procedures using a Tech 2 where possible. Tech 2 is a small hand-held

computer in itself. Its job is to give information to a technician about what is happening in the system.

The Data Link Connector (DLC) is used by the as sembl y plant to perf orm end of line tests. T his c onnector c an also

be used b y technicians to monitor c ertain inputs an d outputs as s een by the tel ematics module. T he Tech 2 r eads

and displays the information (serial data) supplied to the data link connector from the telematics module.

The correct procedure to diagnose a problem is to follow three basic steps.

1. Are the On-Board Diagnostics working? This is determined by performing the On-Board Diagnostic System

Check. Since this is the starting point for the diagnostic procedures or finding the cause of a failure, always

begin here.

If the On-Board Diagnostics are not working, the On-Board Diagnostic System Check will lead to a diagnostic

chart to correct the problem. If the On-Board Diagnostics are working correctly, the next step is:

2. Is there a Diagnostic Trouble Code stored? If a diagnostic trouble code is stored, go directly to the numbered

diagnostic trouble code chart. This will determine if the fault is still present. If no diagnostic trouble code is

stored, then:

NOTE: The telematics module does not use Diagnostic Trouble Codes, Go to Step 3.

3. Obs erve Serial Data transm itted by the telem atics module: T his invol ves readin g the Tech 2 inf ormation. T ech

2 Information and the meaning of the various displays can be found in the Service Information. Typical data

readings un der a particu lar operatin g condition ca n be found on t he Tech 2 Data page. If the actu al data does

not match the typical data, then refer to the specific diagnostics for that data parameter.

12K DIAGNO ST IC CHAR T

VERIFY DRIVER CONCERN

PRELIMINARY CHECKS

(VISUAL AND OPERATIONAL)

PERFORM

TELEMATICS SYSTEM

OBD SYSTEM CHECK

CHEC K FOR

BULLENTINS

STORED

DTC(S)

PUBLISHED

DTC

DIAGNOSTICS

PUBLISHED

SYMPTOM

DIAGNOSTICS

ANALYSE &

DEVELOP

DIAGNOSTICS

FROM WIRING

DIAGRAMS

& THEORY

REFER TO

INTERMITTENT

DIAGNOSTIC

DETAILS

Ex p lain Operat ion to Driv er

Call Technical Assistance

DRIVER MISUNDERSTANDING OF SYSTEM

PRODUCT PROBLEM

ISOLATE

THE PROBLEM RE-EXAMINE

THE CONCERN

YES

REPAIR/RESOLVE

& VERIFY

SYMPTOM

NO DTC(S)

PUBLISHED

DIAGNOSTICS

OPERATING AS DESIGNE D

INTERMITTENT

5.1 5.2

5.3 5.4

5.5

Figure 12Q-64 Strategy Based Diagnostic

5.6 DIAGNOSTIC CHARTS

ON-BOARD DIAGNOSTIC SYSTEM CHECK

VX12K113

TELEMATICS MODULE

BATTERY

LOC. E1

GROUND

BACK UP

BATTERY

GROUND

BATTERY

BACK UP

BATTERY

CHARGER

F31

YB178

YR55

BACK UP

BATTERY

YR55

YR60YR61

BR / W (2517)

Y/B (2516)

REAR VIEW MIRROR

TELEMATICS

STATUS LE DS

YB186

Figure 12Q-65

Circuit Description

The On-Board Diagnostic System Check is an organised approach in identifying a telematics system problem. It

must be the s tarting p oint for an y system diag nostics, as it directs the s ervice tec hnician to th e next logic al step in

diagnosing a complaint. Understanding the diagnostic chart and using it correctly will reduce diagnostic time and

prevent the replacement of good parts.

Test Description

1. The telematics Module Service Mode must be disabled and the Telematics Module operating in Active Mode

for this diagnostic chart to function correctly.

2. Confirms if the telematics module has detected a system fault or if the module is in Service Mode. In Service

Mode only the Holden Assist button is operational. This prevents unnecessary calls and alerts being made to

Holden Ass ist while the vehic le is being ser viced. All s ervice procedur es should be car ried out with th e Servic e

Mode enabled, unless otherwise specified.

3. Confirms Tech 2 operation.

4. Confirms that Tech 2 can communicate with the telematics module. If the telematics module is in the Pre

delivery mode the driver’s door must be open before the telematics module will communicate with Tech 2.

5. The VIN in the telematics module should always match the actual vehicle VIN. The correct VIN is critical for

proper telematics system operation.

6. If the engine starts and runs then the fuel pump relay drive circuit if OK.

7. This test determines if the telematics module is in pre delivery mode. In pre delivery mode the telematics

module is turned off. If the pre delivery mode is enabled it should be disabled and the On-Board Diagnostic

System Check should be performed again.

8. During the function test the telematics module checks the following components for correct operation:

Microphone, Speaker and the Key Pad Buttons. If any of these components fail the function test, you should

refer to the applicable diagnostic chart.

9. In this test you should refer to the telematics data list nom inal values. If the values in the Tech 2 Data List do

not meet the nominal values listed, refer to the applicable diagnostic chart.

10. In this test step all of the Tech 2: Miscellaneous Tests should be conducted and should pass the test

successfully, if any test fails you should refer to the applicable diagnostic chart for that miscellaneous test.

11. The vehicle must be positioned where the GSM signal strength is at least 20 and the GPS has a 2 or

3D fix. You can then begin the Holden Assist Telematics System Test. You must refer to the

Holden Assist Telematics System Test in this Section.

12. This test step confirms that the connector terminal retention is OK, Terminal retention should always be

checked before any component is replaced.

13. T he telematic s system is operati ng as desi gned and h as passed t he On-Board Diagnost ic System Check . You

should discuss the system complaint with the driver (System Subscriber) of the vehicle to ensure that they

understand the correct operation of the system, have them demonstrate the problem, discuss the complaint

with the driver (System Subscriber), and have them demonstrate the problem.

STEP ACTION YES NO

1. Disable Telematics Module Service Mode.

Has Service Mode been disabled? Go to Step 2. Disable Service Mode.

Refer F4: Program /

Operating Mode /

Service Mode

in this Section.

2. 1. Turn ignition on, engine off.

Did you hear five beeps and/or did the Holden Assist

Status LEDs flash Red and Green for 25 seconds?

Go to Status LEDs Indicate a

System Malfunction Chart in

this Section.

Go to Step 3.

3. 1. Turn ignition off, install Tech 2 to DLC, turn ignition

on and turn on Tech 2.

Does Tech 2 power up and display the title display

screen?

Go to Step 4. Refer Tech 2 Diagnosis,

Section 0C Tech 2 in

this Service Information.

4. 1. Open the driver’s door.

2. With Tech 2 still connected and ignition on, press

the ENTER key, then select Diagnostics / (1) 2001 /

VX Commodore / F4: Body / Telematics Module and

then follow the screen instructions.

Does Tech 2 display telematics system identification

information?

Go to Step 5. Refer No Telematics

Serial Data Diagnostic

Chart, in this Section.

5. Did the VIN displayed in the step 4 match the actual VIN

of the vehicle? Go to Step 6. Go to Step 12.

6. Does the engine start and run. Go to Step 7. Refer Fuel Pump Relay

Drive Circuit Diagnostic

Chart in this Section.

7. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Operating Mode.

Does Tech 2 display “Pre Delivery”?

Disable Pre Delivery Mode.

Refer F4: Program /

Operating Mode / Pre

Delivery Mode

in this Section.

Go to Step 8.

8. 1. From the Telematics Application Menu,

Select F3: Additional Functions / F0: Function Test.

(Refer, F0: Function Test in th is Section).

Did the Telematics System pass the Function Test?

Go to Step 9. Refer Function Test

Failure Diagnostic

Charts in this Section.

9. 1. From the Tech 2 Telematics application menu

Select / F0: Data Display

(Refer Telematics Data List in this Section).

Do the Telematics Data List parameters match the

Nominal Values?

Go to Step 10. Refer 4.3 TECH 2 TEST

MODES, F0: Data

Display in this Section.

10. 1. From the Tech 2 Telematics application menu

Select / F2: Miscellaneous Tests

(Refer F2: Miscellaneous Tests in this Section).

2. Perform all the Miscellaneous Tests.

Where all the Miscellaneous Tests successful?

Go to Step 11. Refer to the Applicable

Miscellaneous Test

Failure Diagnostic Chart

in this Section.

11. 1. Ignition on.

2. Position the vehicle where the GSM Signal strength

is at least 20 and the GPS has a 2 or 3D Fix.

3. Perform a Holden Assist Telematics System Test.

(Refer Holden Assist Telematics System Test in this

Section).

Was the Telematics System Test successful?

Go to Step 13. Go to Step 12.

STEP ACTION YES NO

12. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace tele mati cs mo dule . Repair connec tor

terminal retention.

13. Telematics system is operating correctly.

If the owner (System Subscriber) was complaining about a system fault, discuss the complaint with the owner, and

have them demonstrate the problem.

STATUS LEDS INDICATE A SYSTEM MALFUNCTION

TELEMATICS MODULE

LOC. E1

BATTERY

YB178

BATTERY

F31

YR55

YB178

BODY

CONTROL MODULE

R/B (1221) TO PCM

TO SRS

TO INSTRUMENTS

ECC, ABS/ETC &

G/W (1220)

W/G (1220)

SERIAL

DATA

MAIN

SERIAL

DAT A AUX.

GROUND

SERIAL

DATA

G/W (1220)

VX12K157

YB174

YB163

YB175

YB164

BR / W (2517)

Y/B (2516)

REAR VIEW MIRROR

TELEMATICS STATUS LEDS

YB186

Figure 12Q-66

Circuit Description

W hen the ser vic e a lert is a ctiva ted the sta tus i ndica tor LEDs wil l f lash r ed an d gr e en f or 25 sec on ds and f ive beeps

will be heard when the ign ition is turned from off to on. The service alert will be activated if the telematics module

service m ode is active or the telem atics module has detected that the G SM module is not active, the G PS module

is not active, or the backup battery is not charged or disconnected.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. Confirms that Tech 2 is being powered and is operational.

3. Confirms that Tech 2 can communicate with the telematics module.

4. When the telematics module is in service mode the telematics module service alert will be activated i.e. the

status in dicator LEDs will flash r ed and green f or 25 seconds an d five beeps will be hear d when the ign ition is

turned on.

5. Low backup battery voltage will also cause the service alert to be activated i.e. the status indicator LEDs will

flash red and green for 25 seconds and five beeps will be heard when the ignition is turned on.

6. The GPS Module should always be active, unless the telematics module is in pre delivery mode.

7. The GSM Module should always be active, unless the telematics module is in pre delivery mode.

8. The Tech 2 F0: Function Test when in itiated checks the functionalit y of the microphone circuit, speaker circuit

and the keypad buttons. If any components fail the function test, you should refer to the specific diagnostic

chart.

9. The Tech 2 F0: Data L ist should be ch eck to determine if the ac tual data val ues m atch the typical dat a valu es.

If they do not match then you should refer to the specific data list diagnostic chart.

10. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. 1. Has a Telematics On-Board Diagnosis System

Check been performed? Go to Step 2. Refer Telematics

On-Board

Diagnostic

System Check in

this Section.

2. 1. Turn ignition off, connect Tech 2 to DLC, turn

ignition on and turn on Tech 2.

Does Tech 2 power up and display the title display

screen?

Go to Step 3. Refer, Tech 2

Diagnosis

Section 0C Tech

2 in this Service

Information.

3. 1. From the Tech 2 title display screen press Enter,

then select the appropria te M odel Y ear (2001)/

VX Commodore/Body/Telematics Module.

Does the Tech 2 display Telematics Identification Data?

Go to Step 4. Refer No Serial

Data Diagnostic

Chart in this

Section.

4. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Operating Mode.

Does Tech 2 display Operating Mode “Service”?

Disable Service

Mode.

Refer F4:

Program /

Operating Mode /

Service Mode

in this Section.

Go to Step 5.

5. 1. Scroll to Backup Battery Voltage.

2. Turn the ignition off.

Is the backup battery voltage greater than the specified

value?

11.5 Volts? Go to step 6. Refer Backup

Battery

Diagnostic Chart

in this Section.

6. 1. Scroll to GPS Module.

Does the Tech 2 display GPS Module “Active”?

Go to step 7. Go to step 10.

7. 1. Scroll to GSM Module.

Does the Tech 2 display GSM Module “Active”?

Go to step 8. Go to step 10.

8. 1. From the Telematics Application Menu,

Select F3: Additional Functions / F0: Function Test.

(Refer, F0: Function Test in th is Section).

Did the Telematics System pass the Function Test?

Go to step 9. Refer Function

Test Failure

Diagnostic Chart

in this Section.

9. 1. From the Tech 2 Telematics Application Menu

Select / F0: Data Display

(Refer Telematics Data Display in this Section).

Do the Telematics Data Display parameters match the

Nominal Values?.

Go to step 10. Refer 4.3 TECH

2 TEST MODES,

F0: Data Display

in this Section.

10. 2. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace

telematics

module.

Repair connector

terminal

retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

NO SERIAL DATA

GEN III V8

VX12K112

BODY CONTROL MODULE

BATTERY

F31

5/A6

O/B (740)

(1040)

BATTERY MAIN POWER

R (2)

F14

E20/D6

P/B

(39) IGNITION ON

15a 15 50

IGN

START

IGNITION SWITCH

(3)

YB165

YB176

HIG H SERIES

BCM TERMINALS

NO MINATED FIRST

YB44

YB164

YB175

YE112

B/Y (155)

B/G (151)

LOC. E3

R/B (1221)

G/W (1220)

W/G (1220)

YE114

ELECTRONIC

CLIMATE CONTRO L

YE87

LOC.E3

2B/Y (155)

SERIAL

DATA

YE114

ABS/ETC

YE98

LOC.E3

19 B (150)

SERIAL

DATA

INSTRUMENTS

YB66

B/Y(155)

SERIAL

DATA

ELECTRONIC EARTH

HIGH CURRENT

EARTH

A1/A5

B10/

B11

YB176

YB165

YB174

YB163

YB164

YB175

E2/D2

E9/D3

E3/D13

SERIAL

DATA

MAIN

SERIAL

DATA AUX.

LOC. E5/E15

GEN III V8 POWERTRAIN

CONTROL MODULE

J1-58

J2-01

J2-40

J1-40

J1-01

CLASS II

SERIAL DATA

YE122

B/R (750)

YB215

B/R (750)

POWERTRAIN

INTERFACE MODULE

SERIAL

DATA

12V

DIAG . ENA BLE

CLASS 2

SER IAL DATA

LOC.

E5/E15

SUPPLEMENTAL

RESTRAINT SYSTEM

YB190

YB189

LOC.G11

EARTH

SERIAL

DATA

B (3 05)

YB191

6 POWERTRAIN

CONTROL MODULE

SERIAL

DATA

R/B (1221) C13

YB198

YB199

YB187

LOC. E 15

LOC. E 5

B/R

(750)

B/R

(750)

R/B (1221)

LOC. E5

SUPERCHARGED V6

POWERTRAIN

CONTROL MODULE

SERIAL

DATA

B188

LOC. E 15

B/R

(750)

B/R

(750)

LOC.E12

B/W(1151)

B/Y

(155)

(150)

LO C. E3 YB128

642516 91

DATA LINK

CONNECTOR

TELEMATICS

YB178

YR55

SERIAL

DATA

Figure 12Q-67

Circuit Description

The telem atic s m odule m onitors the auxi liar y seria l dat a circuit 1 220 (G reen/W hite wire) norm al m ode m essage f or

the follo wing information: Ignit ion Stat us f r om the BCM, Air ba g Dep loyed this Ign it i on C ycle f r om the SRS SD M and

Vehicle Speed from the PCM. For further information regarding the serial data bus and normal mode

message, refer 1.1 Serial Data Communication in Section 12J-1 Low Series Body Control Module or

Section 12J-2 High Series Body Control Module in this Service Information.

If the telematics module receives a “Remote Unlock” message from the Holden Assist Centre, the

telematics module will request the BCM (via the serial data circuit) to unlock the doors. For further

information regarding the BCM door lock operation, refer Section 12J-1 Low Series Body Control Module or

Section 12J-2 High Series Body Control Module, 1.3 Central Door Locking Systems in this Service Information.

If the telematics module receives a “Immobilise” message from the Holden Assist Centre, the telematics module will

then turn of f the fuel pum p r elay cutting off the supp ly of f uel to the e ngine and re ques t th e BC M ( v ia t he s eri al d at a

circuit) to flash the indicators. For further information regarding the BCM indicator operation, refer Section 12J-2

HIGH SERIES BODY CONTROL MODULE 1.4 Theft Deterrent System in this S ervic e Inf or mation.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. This test step determines if Tech 2 is able communicate with the BCM.

3. This test step determines if Tech 2 is able to communicate with other control modules on the auxiliary serial

data circuit.

4. This test step checks for an open circuit in the BCM data bus isolator.

5. This test step determ ines if the te lem atics module is r ec eiving a driver’s door input signal. When in pre delivery

mode, the telematics module must see a driver’s door input signal before it will communicate with Tech 2.

6. This test step checks the voltage at the on the auxiliary data circuit at the telematics module connector. The

voltage should be vary between three to five volts.

7. If the auxiliary data circuit is steady or greater that five volts then there is a short to voltage on this circuit.

8. Eac h control m odule on the serial d ata circuit shoul d be disconnected t o determ ine if that m odule is the caus e

of the short to voltage.

9. Eac h control m odule on the serial d ata circuit shoul d be disconnected t o determ ine if that m odule is the caus e

of the short to ground.

10. This test step checks that battery voltage is being applied to terminal 13 of the telematics module.

11. This test step checks the telematics module ground circuit.

12. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. 1. Has a Telematics On-Board Diagnosis System

Check been performed? Go to Step 2. Refer, Telematics

On-Board

Diagnostic System

Check, in this

Section.

2. 1. From the Tech 2 Body Application Menu select

DTC Check / F0: DTC Check and follow screen

instructions, Ignition On.

Does Tech 2 Display “BCM DTC Status, No Data”?

NOTE: If “No Data” is displayed next to BCM DTC

Status, then there is no communication between Tech

2 and the BCM.

Refer BCM Serial

Data

Communication

diagnostics in

Section 12J-1 LOW

SERIES BCM or

12J-2 HIGH

SERIES BCM in this

Service Information.

Go to Step 3.

3. In step 2 did Tech 2 display “No Data” for the all of the

following con trol mod ules?

INS DTC Status No Data.

ABS DTC Status No Data.

ECC DTC Status No Data.

Go to Step 4. Go to Step 5.

4. 1. Ignition on.

2. Disconnect telematics module connector YR55.

3. Using a DVM, check the voltage at terminal 9

circuit 1220 (Green/White wire) of the telematics

module connector YR55.

Is the voltage varying between specified value?

3 – 5

Volts Go to step 9. Go to step 5.

5. In step 4 is voltage steady or above specified value? Go to step 6. Go to step 7.

6. 1. Repair for short to voltage in circuit 1220.

NOTE: Disconnect each control module in circuit

1220 one at a time to isolate the fault in the circuit

or to identify the control module causing the fault.

Is action complete.

Verify Repair. Complete Action.

7. 1. Using a DVM, check continuity of circuit 1220

(Green/White wi re) between terminal 9 of the

telematics module connector YR55 and terminal

D3 (Low Series BCM) or terminal E2 (High Se ries

BCM).

Does continu ity ex ist?

Go to Step 8. Repair open in

circuit 1220.

8. 1. Using a DVM, check continuity of circuits 1220

(Green/White wire) and 1221 (Red/Black wire)

between BCM connector YB164, terminals D2 and

D3 (Low Series BCM) or YB175, terminals E2 and

E9 (High Series BCM).

Does continu ity ex ist?

Check for

intermittent open in

circuit 1220.

Refer BCM

diagnostics in

Section 12J-1 Low

Series BCM 12J-2

High Series BCM in

this Service

Information.

9. 1. Ignition on.

2. Open the driver’s door.

3. Using a DVM, check the voltage at terminal 23

circuit 126 (Grey/White wire) of the telematics

module connector YR55.

Is the voltage at the specified value?

Less than

0.2 Volts. Go to Step 10. Refer Driver’s Door

Jamb Switch Circuit

Diagnostic Chart in

this Section.

10. 1. Using a DVM, check the voltage at terminal 13

circuit 740 (Orange/Black wire) of the telematics

module connector YR55.

Is the voltage at the specified value?

B+ Go to Step 11. Repair open in

circuit 740.

STEP ACTION VALUE YES NO

11. 1. Check the integrity of the telematics module earth

circuit, by performing a voltage drop on circuit

1151 (Black/White wire) between telematics

module connector YR55, terminal 2 and a known

good ground.

With connector YR55 connected to the telematics

module and the ignition on, is voltage less than the

specified value?

0.15 Volts Go to Step 12. Repair earth circuit

as necessary.

12. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace telematics

module. Repair con nec tor

terminal retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

STATUS INDICATOR LEDS DO NOT ILLUMINATE

TELEMATICS MODULE

LOC. E1

BATTERY

F31

YR55

YB178

VX12K161

BR / W (2517)

Y/B (2516)

REAR VIEW MIRROR

TELEMATICS STATUS LEDS

YB186

Figure 12Q-68

Circuit Description

The red a nd green s tatus indicat or L EDs in t he interio r rear view m irror indic ate the c urrent stat us of the te lem atic s

system. The telematics module activates the LEDs by switching a 12 power supply to each LED on or off. The

brightnes s of the LEDs is control led b y the int erior rea r vie w mir ror elec tronic s, which will vary the brig htnes s of the

LEDs depending on the ambient light and the ignition switch position. If the ambient light is low the brightness of

the LEDs will be decreased when the ignition is on. If the ambient light is high there will be no change to the

brightness of the LEDs when the ignition is turned on.

LED Condition Current Status

Green Continuous Call is connected.

Green Flashing Call is being connected.

Red Continuous Vehicle is not within GSM network range.

Red/Green Alternate Flashing

(Will appear to be

flashing Red/Orange)

Attempting to make an emergency call while outside GSM network range

(“Emergency Call Mode”)

Red/Green Alternate Flashing

(only active for 25

seconds afte r the

ignition is turned on)

Alert that Service Mode is active or a system malfunction has been

detected.

Potential malfunctions:

GSM Module not active. GPS Module not active.

Backup battery is not charged or disconnected.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. If Tech 2 is capable of commanding the red status LED on and off the LED and circuit are OK.

3. Checks red status LED supply voltage on circuit 2517 (Brown/White wire).

4. Checks that the telematics module can command the red status LED supply on and off.

5. If Tech 2 is capable of commanding the green status LED on and off the LED and circuit are OK.

6. Checks green status LED supply voltage on circuit 2516 (Yellow/Black).

7. Checks that the telematics module can command the green status LED supply on and off.

8. Checks integrity of the Rear View Mirror ground circuit 156.

9. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. 1. Has a Telematics On-Board Diagnosis System

Check been performed? Go to Step 2. Refer, Telematics

On-Board

Diagnostic System

Check, in this

Section.

2. 1. From the Telematics Application Menu,

Select F2: Miscellaneous Tests / F1: Red Status

LED.

2. Command the LED on and off.

Did the Red Status LED turn on?

Red status LED is

OK.

Go to Step 5.

Go to Step 3.

3. 1. Using a DVM, check the voltage at the rear view

mirror connector YB186 circuit 2517 (Brown/White

wire).

2. Command the LED on, as in step 2.

Is voltage as specified?

12 volts Go to Step 8. Go to Step 4.

4. 1. Using a DVM, check the voltage at the telematics

module connector YR55 circuit 2517 (Brown/White

wire).

2. Command the LED on, as in step 2.

Is voltage as specified?

12 volts Repair open circ uit

2517.

Go to Step 9.

5. 1. From the Telematics Application Menu,

Select F2: Miscellaneous Tests / F2: Green Status

LED.

2. Command the LED on and off.

Did the Green Status LED turn off and on?

Green status LED is

OK. Go to Step 6.

6. 1. Using a DVM, check the voltage at the rear view

mirror connector YB186 circuit 2516 (Yellow/Black

wire).

2. Command the LED on, as in step 5.

Is voltage as specified?

12 volts Go to Step 8 Go to Step 7.

7. 1. Using a DVM, check the voltage at the telematics

module connector YR55 circuit 2516 (Yellow/Black

wire).

2. Command the LED on, as in step 5.

Is voltage as specified?

12 volts Repair open circ uit

2516.

Go to Step 9.

8. 1. Using a DVM, measure the continuity of circuit 156

(Black/Blue wire) between and terminal 8 of the

rear view mirror connector YB186 and a known

good ground.

Is there continuity?

Less than

1 Ohm. Replace rear view

Mirror. Repair open circuit

156 between the

rear view mirror and

ground LOC. E6.

STEP ACTION VALUE YES NO

9. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace telematics

module. Repair con nec tor

terminal retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

VEHICLE BATTERY VOL TAGE

VX12K106

TELEMATICS MODULE

BATTERY

LOC. E1

GROUND

BACKUP

BATTERY

GROUND

BATTERY

BACKUP

BATTERY

CHARGER

F31

YB178

BACKUP

BATTERY

YR56

YR60YR61

YR55

Figure 12Q-69

Circuit Description

Battery voltage is applied to the telematics module terminal 1 at all tim es via circuit 740 (Orange/Black wire), fuse

F31 and f us ib le l ink FS. If the battery vo lta ge f ai ls be low a pres et vo lta ge for long er tha n 3 0 minutes, t he tel e matics

module will transmit a Low Battery Alert to the Holden Assist Centre. If the battery is removed the telematics

module will transmit a Battery Removal Alert to the Holden Assist Centre.

The backup battery will provide power to the telematics module for approximately 30 minutes in the event of the

vehicle b attery being dis c h arged or d isc onn ec ted. The telematics m odule has a b ac k up battery charg in g c ircuit that

maintains the backup battery state of charge. A 3A fuse is used to protect the backup battery circuitry.

The telematics module constantly monitors both vehicle battery voltage and backup battery voltage. The charging

circuit al lows the back up battery to dra w current of up to 300m A maximum fr om the vehic le batter y. As the batter y

voltages equalise the current drawn will decrease. The charging circuit is only active when the ignition is on, and

can only charge the backup battery to equal the voltage of the vehicle battery.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. Checks the open circuit voltage of the vehicle battery.

3. The displayed battery voltage should be within 0.5 volts of the battery open circuit voltage in step 2.

4. This test step measures that actual voltage at the telematics module connector YR55.

5. This test step checks the continuity of circuit 740.

6. This test step checks the continuity of circuit 1151.

7. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. Has a Telematics On-Board Diagnosis System Check

been performed? Go to Step 2 Refer Telematics

On-Board

Diagnostic

System Check in

this Section.

2. 1. Using a DVM measure the vehicle battery open

circuit voltage.

Refer SECTION 12A BATTERY AND CABLES,

3. DIAGNOSIS in this Service Information.

Is the vehicle battery open circuit voltage as specified?

Greater than

12.4 Volts. Go to Step 3. Refer SECTION

12A BATTERY

AND CABLES,

3. DIAGNOSIS in

this Service

Information.

3. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Battery Voltage.

Is the voltage as specified?

B+ Vehicle battery

voltage OK. Go to Step 4.

4. 1. Using a DVM measure the voltage at the telematics

module connector YB55 terminal 1 circuit 740

(Orange/Black wire) and a known good ground.

Is the voltage as specified?

B+ Go to Step 6. Go to Step 5.

5. 1. Using a DVM measure the resistance of circuit 740

(Orange/Black wire) between fuse F31 and

terminal 1 of the telematics module connector

YR55.

Is resistance as specified?

Less than

1 Ohm. Go to Step 6. Repair open in

circuit 740.

6. 1. Using a DVM measure the resistance of circuit

1151 (Black/white wire) between term inal 2 of the

telematics module connector YR55 and a know

good ground.

Is resistance as specified?

Less than

1 Ohm. Go to Step 7. Repair open in

circuit 1151.

7. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace

telematics

module.

Repair connector

terminal

retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

BACKUP BATTERY

VX12K106

TELEMATICS MODULE

BATTERY

LOC. E1

GROUND

BACKUP

BATTERY

GROUND

BATTERY

BACKUP

BATTERY

CHARGER

F31

YB178

BACKUP

BATTERY

YR56

YR60YR61

YR55

Figure 12Q-70

Circuit Description

The backup battery will provide power to the telematics module for approximately 30 minutes in the event of the

vehicle b attery being dis c h arged or d isc onn ec ted. The telematics m odule has a b ac k up battery charg in g c ircuit that

maintains the backup battery state of charge. A 3A fuse is used to protect the backup battery circuitry.

Battery voltage is applied to the telematics module at all times via circuit 740 (Orange/Black wire), fuse F31 and

fusible link FS. If the batter y voltag e fails b elow a pres et voltage f or longer than 30 m inutes, the telem atics m odule

will transmit a Low Battery Alert to the Holden Assist Centre. If the battery is removed the telematics module will

transmit a Battery Removal Alert to the Holden Assist Centre.

The telematics module constantly monitors both vehicle battery voltage and backup battery voltage. The charging

circuit al lows the back up battery to dra w current of up to 300m A maximum fr om the vehic le batter y. As the batter y

voltages equalise the current drawn will decrease. The charging circuit is only active when the ignition is on, and

can only charge the backup battery to equal the voltage of the vehicle battery.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. Checks backup battery fuse.

3. Check vehicle battery voltage. If the vehicle battery voltage the actual vehicle battery voltage should be

checked.

4. Checks backup battery voltage via Tech 2.

5. Checks battery charger status via Tech 2. The backup battery charger should be able to be switched from

“Active” to “Inactive”.

6. Checks that the backup battery charger is functioning, the backup battery should display active when the

ignition is on an d the backup battery voltage is les s tha n veh icle b attery volta ge. When the engine is started the

alternator should cause the vehicle battery voltage to increase, this increase in vehicle battery voltage should

cause the backup battery charger to display active.

7. Checks backup battery voltage using Tech 2

8. Checks the actual backup battery terminal voltage using a DVM.

9. Checks integrity of circuit 2240 (Red/White wire).

10. Checks integrity of circuit 2450 (Black wire).

11. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

12. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. Has a Telematics On-Board Diagnosis System Check

been performed? – Go to Step 2. Refer, Telematics

On-Board

Diagnostic System

Check, in this

Section.

2. 1. Check backup battery in line fuse.

Is fuse OK? – Go to Step 3. Check for cause of

fuse failure.

Replace Fuse.

3. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Battery Voltage.

Is the Battery Voltage as specified?

Greater

than 12.4

Volts.

Go to Step 4. Refer to Vehicle

Battery Voltage

Diagnostic chart in

this Section.

4. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Backup Battery Voltage.

Is the Battery Voltage as specified?

Greater

than 11.5

Volts.

Go to Step 5. Go to Step 8.

5. 1. From the Telematics Application Menu,

Select F2: Miscellaneous Tests \ F5: Backup

Battery Charger.

2. Carry out a Backup Battery Charger test.

Does Backup Battery Charger switch from “Active” to

“Inactive” when commanded?

– Go to Step 7. Go to Step 6.

6. 1. Start engine and increase the engine speed to 2000

RPM.

Does Backup Battery Charger display “Active”?

– Go to Step 7. Go to Step 9.

7. 1. Scroll to Backup Battery Voltage.

2. Turn ignition off.

Is backup battery voltage within specified limits?

11.5 to

14.2 volts. Backup battery and

charging cir cui t OK. Go to Step 8.

8. 1. Disconnect Telematics module connector YR55.

2. Using a DMM measure the backup battery voltage

at the Telematics module connector YR55 between

circuit 2240 (Red/White wire +ve) terminal 13 and

circuit 2450 (Black wire –ve) terminal 26.

Is the voltage as specified?

11.5 to

14.2 volts. Go to Step 12. Go to Step 9.

9. 1. Using a DMM, measure resistance between

terminal 13 of the Telematics module connector

YR55 on circuit 2240 (Red/White wire), and backup

battery +ve terminal.

Is the value as specified?

Below 1

Ohm Go to Step 10. Repair open on

circuit 2240.

STEP ACTION VALUE YES NO

10. 1. Using a DMM, measure resistance between

terminal 26 of the Telematics module connector

YR55 circuit 2450 (Black wire), and backup battery

–ve terminal.

Is the value as specified?

Below 1

Ohm Go to Step 12. Repair open on

circuit 2450.

11. 1. Check backup battery connectors YR56, YR60 &

YR61 for terminal retention.

Is the terminal retention OK?

– Replace Backup

Battery. Repair con nec tor

terminal retention.

12. 1. Check Telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

– Replace Telematics

module. Repair connector

terminal retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

NO GPS SIGNAL

GSM

ANTENNA (-)

GSM

ANTENNA (+)

TELEMATICS MODULE

GSM ANTENNA

GSM

MODULE

VX12K119A

GPS ANTENNA

GPS

ANTENNA (-)

GPS

ANTENNA (+)

GPS

MODULE

Figure 12Q-71

Circuit Description

The telematics antenna contains both the GPS and GSM antennas in one unit, and is located on the rear parcel

shelf, under the rear parcel shelf trim. The antenna has two leads, one for the GPS antenna and the other for the

GSM antenna. The GPS antenna receives signals from satellites orbiting the earth and transmits these to the

telematic s m odule to determ ine the veh ic les position. Sig na ls f r om at least thr ee G PS sa te llites must be recei ved to

accuratel y determ ine the v ehicle’s t wo dim ensional ( 2D) posit ion. Sign als from at least f our GPS sat ellit es must be

received to accurately determine the vehicle’s three dimensional (3D) position. If signals from only three satellites

are received, the telematics module cannot determine the vehicles altitude. The GPS antenna must not be

obscured by any objects, such as underground car parks, tunnels, bridges or buildings any of these may affect

GPS r eception. The GP S anten na is con nected t o the telematics module by a s crew-on type co nnector ( smaller of

the two a nte nna c onn ec tor s ) . To determine the ve hic l es pos it io n th is G P S inf or m atio n is trans mitted via SM S to the

Holden As sist Centre whenever a call is made to the Holden As sist Centre. The Hold en Assist C entre is a lso able

to track the vehicle using this GPS information.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. The GPS module should be active at all times.

3. The GPS antenna should display Okay.

4. The position of the veh icle wil l aff ect the GP S signa l. T he veh icle sh ould b e m oved to a locat ion where ther e is

an unobstructed view of the sky. There may be times during the day that there are actually no satellites visible.

5. The telematics m odule has the abilit y to check the GPS ante nna and will displa y either Okay, Open Circuit or

Short Circuit .

6. If the T ech 2 displays GPS Antenna “Short Circuit” th e you should go to step 7. In step 7 you will determ ine if

the antenna or the telematics module is causing the problem.

7. Once the tel em atics anten na G PS c onnector is discon nected, then T ech 2 s houl d dis pla y GPS Antenna “Op en

Circuit”. If this is not displayed then the telematics module is faulty.

8. This test step confirms that the GPS connector is tight.

9. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. Has a Telematics On-Board Diagnosis System Check

been performed? Go to Step 2. Refer,

Telematics On-

Board Diagnostic

System Check, in

this Section.

2. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to GPS Module.

Does Tech 2 display GPS Module “Active”?

Go to Step 3. Go to Step 9.

3. 1. Scroll to GPS Antenna Status.

Does Tech 2 display GPS Antenna “Okay”?

Go to step 4. Go to Step 5.

4. 1. Scroll to GPS Satellites.

Does Tech 2 display Satellites “Visible“?

GPS Antenna

OK. Go to Step 5.

5. In test step 3 did Tech 2 display GPS Antenna “Open

Circuit”? Go to Step 8. Go to Step 6.

6. In test step 3 did Tech 2 display GPS Antenna “Short

Circuit”? Go to Step 7. Go to Step 8.

7. 1. Disconnect telematics antenna GPS connector.

Does Tech 2 display GPS Antenna “Open Circuit”?

Go to Step 8. Go to Step 9.

8. Is the GPS antenna connector loose? Tighten

connector. Replace

telematics

antenna.

9. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace

telematics

module.

Repair connector

terminal

retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

NO GSM SIGNAL

GSM

ANTENNA (-)

GSM

ANTENNA (+)

TELEMATICS MODULE

GSM ANTENNA

GSM

MODULE

VX12K119A

GPS ANTENNA

GPS

ANTENNA (-)

GPS

ANTENNA (+)

GPS

MODULE

Figure 12Q-72

Circuit Description

The telematics antenna contains both the GPS and GSM antennas in one unit, and is located on the rear parcel

shelf, under the rear parcel shelf trim. The antenna has two leads, one for the GPS antenna and the other for the

GSM anten na. The G SM a ntenna is capab le of tr ans m itting and rec eiving b oth v oice and d ata si gnals via the G SM

network. The telematics module uses the GSM network to transmit and receive voice and data. Signal strength

may be affected in locations lik e basement car park s or tunnels. However, in m ost cases, as the vehicle emerges

from the obstruction or re-enters the digital phone network area the signal will be available again and any stored

data will be transmitted. The GSM antenna is connected to the telematics module by a screw-on type

connector(larger of the two antenna connectors).

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. The GSM module should be active at all times.

3. If there is no GSM signal then either the telematics antenna or telematics module are faulty. The GSM signal

strength can vary from 1 to 32, less than 15 could cause call dropout. The vehicle should be moved to a

location that has a better GSM signal and the signal strength checked again.

4. The GSM antenna connector should be checked to ensure the connector is tight.

5. Once the antenna is replaced and the signal strength still displays “No Signal” the telematics module is faulty.

6. This test step confirms that the connector terminal retention is OK. Terminal retention should always be

checked before any component is replaced.

STEP ACTION VALUE YES NO

1. Has a Telematics On-Board Diagnosis System Check

been performed? Go to Step 2. Refer Telematics

On-Board

Diagnostic

System Check in

this Section.

2. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to GSM Module.

Does Tech 2 display GSM Module “Active”?

Go to Step 3. Go to Step 6.

3. 1. Scroll to GSM Signal Strength.

Does Tech 2 display GSM Signal Strength “No Signal”?

Go to Step 4. GSM Antenna

OK.

4. Is the GSM antenna connector loose? Tighten

connector. Go to Step 5.

5. 1. Replace Telematics Antenna.

Does Tech 2 display GSM Signal Strength “No Signal”?

Go to Step 6. GSM Antenna

OK.

6. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace

telematics

module.

Repair connector

terminal

retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

EMERGENCY BUTTON NOT OKAY

VX12K103

G (1488)

BR (814 )

BR / W (2517)

Y/B (2516)

MIC ( + )

MIC ( -)

TELEMATICS MODULE

REAR VIEW MIRROR,

KEY PAD & INDICATOR ASSEMBLY

YB186

G/W (2514)

PUSH

BUTTON

SUPPLY

VOLTAGE

PUSH BUTTON

SIG N AL VO LTAGE

LG/B (2515)

YR55

YB186

Ω

13K

1.5K

Figure 12Q-73

Circuit Description

The telem atic s button pad is a resistor encod ed switch , which m eans that each b utton has a sep arate and diff erent

value resistor connected to it. The telematics module uses a voltage divider circuit to determ ine which button has

been pres sed. The telematic s m odule s upp li es a 12 vo lt s ign al vo lta ge to t er minal 12 of the bu tton pad switch es via

circuit 25 15 (Light Gre en/Black wire). W henever a butt on is pressed the c orrespondi ng switch is c losed and circ uit

2514 (Green/White wire) is connected to ground through a resistor, each switch having a different value resistor.

The telematics module monitors the voltage on circuit 2514 (Green/White wire) at terminal 19 which will change

when any of the buttons are pressed. Each button m ust be pressed until two beeps are heard from the telematics

speaker. If a button is not pressed for long enough, three beeps will be heard from the telematics speaker. In the

event of multiple button presses at the same time, the telematics module will ignore the button press until all

buttons are released.

When the emergency button is pressed, the voltage at terminal 19 of the telematics module will be approximately

3.8 Volts, the telematics module sees this voltage at terminal 19 as an emergency button press. The emergency

button must be pressed until two beeps are heard. You will then be connected to an operator at NERCTM. If the

button is not pressed for long e nough three be eps will be heard. For saf ety reasons (in case of the presence of an

intruder), if a call has been made to NERCTM by pressing the em ergency button, you cannot end this call, you will

have to request them to end the call. If the vehicle is not within GSM network range the telematics module will

make the emergency call as soon the GSM network is available.

Test Description

1. Confirmation that the Telematics On-Board Diagnostic System Check has been performed.

2. Confirms that the telematics module is powering up the keypad.

3. Confirms that the telematics module has commanded the keypad supply voltage on.

4. The keypad signal should display on whenever the telematics module is in active mode.

5. Service mode should be enabled so that the telematics module does not call NERCTM when the emergency

button is pressed. The service mode should be enable until this diagnostic chart is completed.

6. When circuits 2414 and 2415 are jumped together Tech 2 should display a keypad signal voltage of 5.0 volts.

7. T his test step confirm s that the te lematics m odule is s upplying batter y voltag e to circ uit 2515 at th e telemati cs

module connector YR55.

8. T his test step confirm s that the te lematics m odule is s upplying batter y voltag e to circ uit 2515 at th e telemati cs

rear view mirror connector YB186.

9. This test step check that the rear view mirror ground is OK

10. This test step check the complete emergency button and circuits.

11. This test step check the resistance of the rear view mirror emergency button.

12. This test step confirms that the rear view mirror connector YB186 terminal retention is OK. Terminal retention

should always be checked before any component is replaced.

13. T his test st ep confirm s that the telem atics m odule connec tor YR55 term inal ret ention is OK. Term inal rete ntion

should always be checked before any component is replaced.

STEP ACTION VALUE YES NO

1. Has a Telematics On-Board Diagnosis System Check

been performed? Go to Step 2. Refer,

Telematics On-

Board Diagnostic

System Check, in

this Section.

2. 1. Ignition On.

Does the keypad back lighting illuminate.

Go to Step 5. Go to Step 3.

3. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Keypad Supply Voltage.

Does Tech 2 display Keypad Supply voltage “On”?

Go to Step 4. Go to Step 13.

4. 1. From the Telematics Application Menu,

Select F0: Data List.

2. Scroll to Keypad Signal Voltage.

Does Tech 2 display the specified Keypad Signal

voltage?

0.0 Volts. Go to step 5. Go to step 6.

5. 1. Enable the telematics module service mode.

(Service mode should be enabled until this

diagnostics chart is complete d).

2. Press the emergency button.

Does Tech 2 display the specified Keypad Signal

voltage?

3.8 Volts. Emergency

Button OK.

Check for

intermittent in

circuit 2514.

Go to step 6.

6. 1. Disconnect the rear view mirror connector YB186.

2. Ignition on.

3. Jumper terminal 11 (Green/White wire) circuit 2514

and terminal 12 (Light Green/Black wire) circuit

2515 of connector YB 186.

Does Tech 2 display the specified Keypad Signal

voltage?

5.0 Volts. Go to Step 11.

Go to Step 7.

7. 1. Ignition on.

2. Using a DVM measure the voltage at the telematics

module connector YR55 terminal 20 circuit 2515

(Light Green/Black wire) and a known good ground.

Is the voltage as specified?

B+ Go to Step 8. Go to Step 13.

STEP ACTION VALUE YES NO

8. 1. Disconnect the rear view mirror connector YB186.

2. Ignition on.

3. Using a DVM measure the voltage between circuit

2515 (Light Green/Black wire) of the rear view

mirror connector YB186 and a known good ground.

Is the voltage as specified?

B+ Go to Step 9. Repair open in

circuit 2515.

9. 1. Disconnect the battery negative terminal.

2. Disconnect the rear view mirror connector YB186.

3. Using a DVM measure the resistance of circuit 156

(Black/Blue wire) between the rear view mirror

connector YB186 and a known good ground.

Is the resistance as specified?

Less than 1

Ohm. Go to Step 10. Repair open in

circuit 156.

10. 1. Reconnect the rear view mirror connector YB186

and disconnect the telema tic s modu le connector

YR55.

2. Using a DVM measure the resistance between

terminal 20 circuit 251 5 (Light G reen/Bla ck w ire)

and terminal 19 circuit 2414 (Green/White wire) of

the telematics module connector YR55.

Is the resistance as specified when the Emergency

Button is pressed?

1.5 K Ohms. Go to Step 13. Go to Step 11.

11. 1. Disconnect the interior rear view mirror connector

YB186.

2. Using a DVM measure the resistance between

terminal 12 and terminal 11 of the rear view mirror.

Is the resistance as specified when the Emergency

Button is pressed?

1.5 K Ohms. Repair open in

circuit 2514. Go to Step 12.

12. 1. Check interior rear view mirror connector YB186

terminal retention.

Is the terminal retention OK?

Replace interior

rear view mirror. Repair connector

terminal

retention.

13. 1. Check telematics module connector YR55 terminal

retention.

Is the terminal retention OK?

Replace

telematics

module.

Repair connector

terminal

retention.

WHEN ALL DIAGNOSIS AND REPAIRS ARE COMPLETED, VERIFY CORRECT OPERATION

HOLDEN ASSIST BUTTON NOT OKAY

VX12K103

G (1488)

BR (814 )

BR / W (2517)

Y/B (2516)

MIC ( + )

MIC ( -)

TELEMATICS MODULE

REAR VIEW MIRROR,

KEY PAD & INDICATOR ASSEMBLY

YB185

G/W (2514)

PUSH

BUTTON

SUPPLY

VOLTAGE

PUSH BUTTON

SIG N AL VO LTAGE

LG/B (2515)

YR55

YB186

Ω

13K

1.5K

Figure 12Q-74