GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

B1000

DTC B1000

TV Antenna Module, Radio, Radio Antenna Module, SDM, VCIM

B1004

DTC B1004

Audio Amplifier, DDSA, DIM, HVAC Control Module, IPC, Radio

B1007

DTC B1007

Audio Amplifier, DDM, DDSA, DIM, FPDM, HVAC Control Module, IPC, LRDM, MSM, Radio, RIM, RRDM, Theft Deterrent Control Module, VCIM

B1009

DTC B1009

Audio Amplifier, DDM, DDSA, DIM, FPDM, IPC, LRDM, MSM, Radio, RIM, RRDM, Theft Deterrent Control Module, VCIM

B1013

DTC B1013

HVAC Control Module

B1014

DTC B1014

HVAC Control Module

B1372

DTC B1372

DIM

B1382

DTC B1382

DIM

B1390

DTC B1390

DIM