SECTION 6C3 - POWER TRAIN MA NA GEMENT –

GEN III V8 ENGINE

INTRODUCTION

NOTE: Various component specifications and system operating parameters are detailed in the MY 2003 VY and V2

Series Service Information. They are correct at the start of vehicle production and are subject to change. Always

refer to the current release of the SIP CD ROM, for the latest information.

This Section of the MY 2003 VY and V2 Series Service Information is divided into six Sections:

6C3-1, GENERAL INFORMATION

This Section contains a General Description of the powertrain management system and describes how the

Powertrain Control Module (PCM) controls and monitors various systems. This Section also contains the

Abbreviations and Glossary of Terms.

6C3-2, DIAGNOSIS AND TECH 2

This is the Section to begin all driveabilit y and emissions diagnosis. Diagnostic precautions, a general description

of diagnostics and Tech 2, as well as data lists and descriptions are included in this Section.

6C3-2A, DIAGNOSTIC TABLES

This is the Section where all diagnostic procedures are located. System component locations, wire colours and

wiring diagrams for PCM controlled and monitored circuits are located here. Also included are the following

diagnostic tables (and how to use them):

POWERTRAIN CONTROL MODULE

• Powertrain OBD system check

• Diagnostic tables: Data Link Connector (DLC), Engine Cranks But Does Not Run, EFI Re lay Diagnosis,

Fuel Pump Electrical Circuit, Fuel Delivery System, Starter Cranking Circuit

• Diagnostic Trouble Code (DTC) PCM tables: P0101, P0102, P0103, P0107, P0108, P0112, P0113,

P0117, P0118, P0121, P0122, P0123, P0125, P0131, P0132, P0133, P0134, P0135, P0151, P0152,

P0153, P0154, P0155, P0171, P0172, P0174, P0175, P0218, P0230, P0325, P0327, P0332, P0335,

P0336, P0341, P0342, P0343, P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358, P0443,

P0481, P0500, P0502, P0503, P0506, P0507, P0522, P0523, P0530, P0562, P0563, P0601, P0602,

P0608, P0654, P0705, P0706, P0711, P0712, P0713, P0719, P0724, P0740, P0742, P0748, P0751,

P0753, P0756, P0758, P0785, P0801, P1111, P1112, P1114, P1115, P1121, P1122, P1133, P1134,

P1153, P1154, P1258, P1539, P15 46, P1 626, P163 0, P16 31, P1 635, P163 9, P18 10, P18 60, P1 870.

POWERTRAIN INTERFACE MODULE (PIM)

• Diagnostic Trouble Code (DTC) PIM tables: B2002, B2006, B2007, B2009.

This Section also contains the Powertrain OBD System Check, that is the starting point for all diagnostics. If the

Powertra in O BD System Chec k s hows a diag nostic tr oub le cod e is set in the PC M’s m em or y, this Section is where

the diagnostic trouble codes are diagnosed.

If more than one diagnostic trouble code is stored, always diagnose and correct the lowest stored number before

going onto the next higher number diagnostic trouble code.

6C3-2B, SYMPTOMS

When no diagnostic trouble code/s have been set and Tech 2 data values are within typical ranges, you should

diagnose the condition based on the symptoms of the complaint.

This Sect ion star ts with pr e liminary chec k s that m us t be perf ormed to diagnose b y s ymptom. Intermittent c on dit ions

are then d isc us s ed. T hes e pr eliminar y pages pr o vide im portant inf or mation to ass ist with sympt om diagnosis. Nex t,

the contents of this section presents the various symptoms and lists a series of checks for each.

Many of the symptom diagnostics start with a very important procedure, a visual and physical inspection. Always

look for the obvious first. Some situations may warrant observing the driver. Is the driver using the correct shift

lever position or riding the brake pedal? Visually check the engine, transmission, PCM/PIM connectors. Are there

any disconnec te d wir es or incor r ectl y insta lled components.

Finall y, are ther e obvi ous signs that s omeone m ay have perform ed incor rect rep airs? T hese check s tak e ver y little

time and can eliminate time spent on a broad base systematic diagnosis, by directing the Technician to the

problem. If they do not reveal the problem, proceed to check the other suspect systems, as shown.

6C3-2C, FUNCTIONAL CHECKS

This Section contains m any system check s that are to be used when there is a customer c om plaint, no Diagnostic

Trouble Codes are set but one or more of the Tech 2 data values are not within specification. Before using these

tables, you should use the symptoms tables in the previous Section. That may then lead you to this Section.

The purpose of the tables in this Section is to diagnose PCM components or sub-systems that do not have

diagnostic tables assigned to them. Another purpose of these tables is for Technicians who feel confident that a

particular part of the sub-system is not operating correctly and wants to only check that particular item without

going through lengthy diagnostic procedures.

6C3-3, SERVICE OPERATIONS

This Section describes service procedures for the major components and sensors of the Powertrain Management

System

6C3-4, SPECIFICATIONS

This Section provides general specifications for components of the Powertrain Management Sy stem.

6C3-5, TORQUE SPECIFICATIONS

Fastener tightening specifications are summarised in this Section.

6C3-6, SPECIAL TOOLS

This Section contai ns illustr ations, part numbers, des criptions a nd purpose of the special tools requir ed to perf orm

both diagnostic and service operations in this Powertrain Management Sy stem.