GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

B0233

DTC B0233, B0238, or B0268

BCM

B0238

DTC B0233, B0238, or B0268

BCM

B0268

DTC B0233, B0238, or B0268

BCM

P0530

DTC P0530

PCM

P0645

DTC P0645

PCM

P1536

DTC P1536

PCM

P1540

DTC P1540

PCM