GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

CXXXX

Diagnostic Trouble Code (DTC) List in Antilock Brake System

Electronic Brake Control Module (EBCM)

P0502

DTC P0502 in Automatic Transmission-4L60-E

DTC P0502 in Automatic Transmission-4L80-E

Powertrain Control Module (PCM)

P0503

DTC P0503 in Automatic Transmission-4L60-E

DTC P0503 in Automatic Transmission-4L80-E

Powertrain Control Module (PCM)

P0567

DTC P0567

Powertrain Control Module (PCM)

P0568

DTC P0568

Powertrain Control Module (PCM)

P1574

DTC P1574

Powertrain Control Module (PCM)

PXXXX

Diagnostic Trouble Code (DTC) List in Engine Controls-4.8L, 5.3L, and 6.0L, Diagnostic Trouble Code (DTC) List in Engine Controls-8.1L

Powertrain Control Module (PCM)