SECTION 0C - TECH 2
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 I NFORMATIO N
The TECH 2 is a hand-held diagnostic computer designed specifically to help you diagnose and repair electronic
systems used on Holden vehicles.
When diagnosing a WH Series vehicle electronic systems, you should refer to the relevant system in the
appropriate Section of the Service Manual.
The operation of TECH 2 is the same as for VT and VT Series II vehicles, with the following changes.
On W H Ser ies vehicles equipped with a GEN III V8 engine the PCM does not contain a rem ovable PROM, it us es
an EEPROM (Flash Memory) which is non removable. The PCM is programmed from the factory with the proper
calibrations for vehicle operation.
In the event that the PCM is replaced, or an updated calibration is required to correct a vehicle's operating condition,
the PCM will have to be programmed with the new calibration. Programming is accomplished through the vehicle
DLC using the TECH 2 Service Programming System (SPS) and the TIS.
For information regarding TECH 2 and SPS, refer to Section 0C TECH 2 of the VT Series II Service Information.
For additional and more comprehensive information regarding TECH 2, refer to Section 0C TECH 2 of the VT
Series I Service Information and Section 0C TECH 2 of the VT Series II Service Information.
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1.Select the correct Model Year (1999) with the
arrow keys and then press ENTER. The Vehicle
identification screen will then be displayed.
Vehicle Identification
Select one of the following
M odel Year(s)
(X) 1999
(W) 1998
(V) 1997
(X) 1 999 1 / 3
Figure 0C-1 TECH 2 Vehicle Identification Menu
2.When selecting the vehicle type select WH
Statesman & Caprice with the arrow keys and
then press ENTER. The System Select Menu
will then be display ed.
3.The desired system can be selected from the
System Select Menu with the function keys or
with arrow keys and then press ENTER.
Vehicle Identification
Select one of the following
Vehicle Type(s)
W H S tatesma n & Ca price 2 / 14
VT Commodore
W H S tatesma n & Ca price
VS Commodore
Corsa
Tigra
Astra-F
Astra-G
Zafira
Vectra-B
Figure 0C-2 TECH 2 Vehicle Identification
F0: Engine contains all functions to test,
diagnose, and monitor the engine systems that
communicate with the TECH 2 via the
Powertrain Control Module (PCM).
Refer to Section 6C-1 POWERTRAIN
MANAGEMENT – V6 Engine of the VT Series I
Service Information or Section 6C-3
POWERTRAIN MANAGEMENT – GEN III V8
Engine of the VT Series II Service Information.
F1: Transmission contains all functions to
test, diagnose, monitor and program the
transmission systems that communicate with
the TECH 2 via the Powertrain Control Module
(PCM).
Refer to Section 6C-1 POWERTRAIN
MANAGEMENT – V6 Engine of the VT Series I
Service Information or Section 6C-3
POWERTRAIN MANAGEMENT – GEN III V8
Engine of the VT Series II Service Information.
F2: Chassis contains all functions to test,
diagnose, monitor and program the vehicles
chassis systems; ABS and Electronic Traction
Control modules.
Refer to Section 12L ABS & ABS/ETC of the
VT Series II Service Information, for vehicles
fitted with a GEN III engine or Section 12L
ABS & ABS/ETC of the VT Series I Service
Information, for vehicles fitted with V6 engines.
F3: Body contains all functions to test,
diagnose, monitor and program the vehicles
body s ystem s; Body Control Module, Elec tronic
Climate Control, Ins truments and Supplemental
Restra int System.
Refer to Section 12J-2 BODY CONTROL
MODULE of the VT Series II Service
Information.
Refer to Section 6C-3 POWERTRAIN
MANAGEMENT – GEN III V8 Engine of this
Service Information CD.
Refer to Section 2D AIR CONDITIONING –
ECC DIAGNOSTICS of the VT Series II
Service Information.
Refer to Section 12C INSTRUMENTS,
WIPERS / WASHERS AND HORN of the VT
Series II Service Information.
Refer to Section 12M SUPPLEMENTAL
RESTRAINT SYSTEM of the VT Series II
Service Information.
System S elect M en u
(X) 1999 W H Statesm an & Cap ric e
F0: Engine
F1 : Tra nsmission
F2 : Ch assis
F3 : Body
Figure 0C-3 TECH 2 System Select Menu