GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

B1000

DTC B1000

or DTC B1000 in HVAC System-Automatic for IPM only.

IPM, Radio, RCDLR, SDM, VCIM

B1004

DTC B1004

HUD, IPC, IPM, Radio, Remote Playback Device - CD Changer, VCIM

B1007

DTC B1007

DDM, DIM, HUD, HVAC Control Module, IPC, MSM, Radio, RCDLR, Remote Playback Device - CD Changer, RIM, Theft Deterrent Control Module, VCIM

B1009

DTC B1009

DDM, DIM, HVAC Control Module, MSM, Radio, Remote Playback Device - CD Changer, RIM, Theft Deterrent Control Module, VCIM

B1010

DTC B1010

IPM

B1390

DTC B1390

DIM

B1422

DTC B1422

DIM

B1658

DTC B1658

Theft Deterrent Control Module