GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

CXXXX

Diagnostic Trouble Code (DTC) List in Antilock Brake System

EBCM

P0502

DTC P0502 in Automatic Transaxle - 4T65-E

PCM

P0503

DTC P0503 in Automatic Transaxle - 4T65-E

PCM

P1554

DTC P1554

PCM

P1585

DTC P1585

PCM

PXXXX

Diagnostic Trouble Code (DTC) List in Engine Controls-3.4L

PCM