GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

B3787

DTC B3787 or B3788

Body Control Module

B3788

DTC B3787 or B3788

Body Control Module

P0532

DTC P0532 or P0533

Powertrain Control Module

P0533

DTC P0532 or P0533

Powertrain Control Module

P1545

DTC P1545

Powertrain Control Module