GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

P0125

DTC P0125 in Engine Controls - 2.2L (L61)

PCM

P0125

DTC P0125 in Engine Controls - 3.0L (L81)

PCM

P0128

DTC P0128 in Engine Controls - 2.2L (L61)

PCM

P0128

DTC P0128 in Engine Controls - 3.0L (L81)

PCM

B0936

DTC B0936

PCM

P0480

DTC P0480 or P0481

PCM

P0481

DTC P0480 or P0481

PCM