Starting System – HSV - Gen IV V8 Engine Page 6D4-2–1
Page 6D4-2–1
Section 6D4-2
Starting System – HSV - Gen IV V8
ATTENTION
Before performing any service operation or other procedure described in this Section, refer to Section 00
Warnings, Cautions and Notes for correct workshop practices with regard to safety and/or property damage.
1 General Information ...............................................................................................................................2
1.1 Circuit Diagram – Engine Starting Circuit............................................................................................................ 3
Starting System – HSV - Gen IV V8 Engine Page 6D4-2–2
Page 6D4-2–2
1 General Information
This Section provides details on the Starting S ystem fitted to the MY 2004 HSV VZ Series vehicl es.
The starting system used on the GEN IV V8 is similar to that used on the GEN III V8. However, the following
modifications may affect diagnostic proced ures:
• A Powertrain Control Module (PCM) is no longer used and is replaced with a separate Transmissio n Control
Module (TCM – for automatic transmission models onl y) and Engine Control Module (ECM).
• The Powertrain Interface Module (PIM) symbol code has been changed from A5 to A156. Refer to Figure 6D4-2 – 1
for further information.
• The engine-cranking sign al is directed to the ECM and not the PIM.
For all other starting system information refer to Section 6D3-2 Starting System – GEN III V8 in the MY 200 4 Holden VZ
Service Information.
Starting System – HSV - Gen IV V8 Engine Page 6D4-2–3
Page 6D4-2–3
1.1 Circuit Diagram – Engine Starting Circuit
Figure 6D4-2 – 1 shows the starting circuit diagram as a pplicable to MY 2004 HSV VZ vehicles.
Figure 6D4-2 – 1