GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Pontiac
🢒
2002
🢒
Firebird
🢒
Body and Accessories
🢒
Lighting Systems
🢒 Diagnostic Trouble Code (DTC) List
DTC
Description
Module
DTC 021 and/or 031
DTC 021 and/or 031
Body Control Module (BCM)
DTC 022 and/or 032
DTC 022 and/or 032
Body Control Module (BCM)