Automatic Transmission - Diagnostic Procedures: Introduction: Notes

IMPORTANT: The 2004 model year, PT vehicles use the integrated Transmission Control Module and Powertrain Control Module into a single control module. This module is called the Next Generation Controller (NGC) for DaimlerChrysler and will be referred to as the Powertrain Control Module (PCM). The Transmission Control System is part of the Powertrain Control Module.

The PCM will have four color coded connectors, C1 through C4, (C1-BLK, C2-GRAY, C3-WHITE, C4-GREEN), each PCM connector will have 38 pins each. Two tools are used for probing and repairing the PCM connectors. A tool to release the pins from the PCM connectors Miller Tool #3638, you must use the Miller Tool #3638 tool to release the connector pins or harness and connector damage will occur. Also a tool for probing connectors Miller Tool #8815, you must use the Miller tool #8815 tool to probe the PCM pins or harness and connector damage will occur.

The procedures contained in this manual include all the specifications, instructions, and graphics needed to diagnose 40/41TE Electronic Automatic Transaxle (EATX) problems. The diagnostics in this manual are based on the failure condition or symptom being present at time of diagnosis.

When repairs are required, refer to the appropriate volume of the service manual for the proper removal and repair procedure.

Diagnostic procedures change every year. New diagnostic systems may be added and/or carryover systems may be enhanced. READ THIS MANUAL BEFORE TRYING TO DIAGNOSE A VEHICLE TROUBLE CODE. It is recommended that you review the entire manual to become familiar with all new and changed diagnostic procedures.

This book reflects many suggested changes from readers of past issues. After using this book, if you have any comments or recommendations, please fill out the form at the back of the book and mail it back to us.