Diagnostic Procedure
WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
- Using scan tool, check all modules for signs of bus problems. Although it takes 2 occurrences of a missed TRD link message to set a DTC, one missed message will cause transaxle to short shift until next startup. If any other modules show bus problems, repair bus. See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. If no other modules show bus problems, go to next step.
- If early shift occurred while transaxle was cold, this is a normal condition. Manufacturer software is designed to protect transaxle from high torque and/or high RPM during cold operation. Warm transaxle to normal operating temperature and retest. If early shift did not occur while transaxle was cold, go to next step.
- Conditions necessary to cause malfunction are not present at this time. Using wiring diagram as a guide, inspect wiring and connectors associated with circuits in question. See WIRING DIAGRAMS . Wiggle wires while checking for shorted and open circuits. Repair as necessary. If circuits are okay, testing is complete.