GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

B1365

DTC B1365

IPC

B2575

DTC B2575 in Lighting Systems

BCM

B2577

DTC B2577 in Lighting Systems

BCM

B2578

DTC B2578 in Lighting Systems

BCM

B2585

DTC B2585 in Lighting Systems

BCM

B2587

DTC B2587 in Lighting Systems

BCM

B2588

DTC B2588 in Lighting Systems

BCM

B2600

DTC B2600 in Lighting Systems

BCM

B2601

DTC B2601 in Lighting Systems

BCM

B2602

DTC B2602 in Lighting Systems

BCM

B2603

DTC B2603 in Lighting Systems

BCM

B2648

DTC B2648 in Lighting Systems

BCM

B2965

DTC B2965

BCM

BXXXX

Refer to Diagnostic Trouble Code (DTC) List in SIR

SDM

CXXXX

Refer to Diagnostic Trouble Code (DTC) List in Antilock Brake System

EBCM

P0461

DTC P0461

PCM

P0462

DTC P0462

PCM

P0463

DTC P0463

PCM

P0502

DTC P0502 in Automatic Transaxle - 4T40-E/4T45-E

PCM

P0503

DTC P0503 in Automatic Transaxle - 4T40-E/4T45-E

PCM

P1189

DTC P1189

PCM

PXXXX

Refer to Diagnostic Trouble Code (DTC) List (2.4L) or Diagnostic Trouble Code (DTC) List (3.4L) in Engine Controls for additional DTCs

PCM