GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

001

DTC 001 in Seat Belts

BCM

002

DTC 002 in Lighting Systems

BCM

003

DTC 003 in Lighting Systems

BCM

004

Diagnostic System Check - Retained Accessory Power in Retained Accessory Power

BCM

006

DTC 006 in Theft Deterrent

BCM

007

DTC 007 in Horns

BCM

008

DTC 008 in Keyless Entry

BCM

B1000

DTC B1000

EBCM, DIC, IPC, MSM, PCM, PK3, Radio, SDM

B1004

DTC B1004

EBCM, DIC, IPC, PCM, PK3, Radio, SDM, VIU

B1009

DTC B1009

PK3