Introduction

New for 2002 model year, LH vehicles will integrate the Transmission Control Module and Powertrain Control Module into a single control module. This new module is the Next Generation Controller for DaimlerChrysler and will be referred to as the Powertrain Control Module (PCM). The Transmission Control System is part of the Powertrain Control Module.

New Diagnostics procedures and New DTC numbers are some of the changes you will see which reflect the new combined module technology. 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 new tools are used for probing and repairing the New PCM connectors. A New tool to release the pins from the PCM connectors Miller #3638 is introduced, you must use the Miller tool #3638 tool to release the connector pins or harness and connector damage will occur. Also a New tool for probing connectors Miller #8815 is introduced, you must use the Miller tool #8815 tool to probe the PCM pins or harness and connector damage will occur. There is also a new Verification test and module replacement procedure for the new PCM.

These procedures contained here include all the specifications, instructions, and graphics needed to diagnose 42LE Electronic Automatic Transaxle (EATX) problems. The diagnostics are based on the failure condition or symptom being present at time of diagnosis.

When repairs are required, refer to the appropriate service procedure 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. It is recommended that you review all the information to become familiar with all new and changed diagnostic procedures.