Diagnostic Aids

Check all connections to transaxle pass-through connector. An open in the ignition feed circuit will cause multiple codes to set. If scan tester indicates TCC is working, road test vehicle. If engine RPM does not decrease when TCC engagement is indicated on TCC, diagnose transaxle for possible mechanical problem.

Fig 1: Code 80/90 Schematic (3.1L) Transaxle Component Slipping

Fig 2: Code 80/90 Diagnostic Flow Chart (3.1L) Transaxle Component Slipping