GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

B3069

DTC B3064 or B3069

Body Control Module

B3127

DTC B3127

Body Control Module

B3128

DTC B3128, B3133, or B3138

Body Control Module

B3132

DTC B3132

Body Control Module

B3133

DTC B3128, B3133, or B3138

Body Control Module

B3137

DTC B3137

Body Control Module

B3138

DTC B3128, B3133, or B3138

Body Control Module

B3272

DTC B3272

Body Control Module