GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

U1000

DTC U1000

Audio Amplifier, BCM, CDX, DDM, DRR, DSM, EBCM, ESC, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, PCM, Radio, RWSCM, RSA, RSE, SDM, TCSCM, VCIM, VTD

U1016

DTC U1001-U1254

Audio Amplifier, BCM, CDX, DDM, DRR, EBCM, ESC, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, Radio, RWSCM, RSA, RSE, SDM, TCSCM, VCIM, VTD

U1026

DTC U1001-U1254

BCM, EBCM, ESC, IPC, PCM, Radio, RWSCM, SDM

U1041

DTC U1001-U1254

BCM, DDM, ESC, FPDM, HVAC Control Module, IPC, PCM, RWSCM, SDM, TCSCM

U1048

DTC U1001-U1254

EBCM, IPC, PCM

U1056

DTC U1001-U1254

BCM, EBCM, IPC, PCM, RWSCM, SDM, TCSCM

U1064

DTC U1001-U1254

Audio Amplifier, BCM, CDX, DDM, DRR, DSM, EBCM, ESC, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, PCM, Radio, RWSCM, RSA, RSE, SDM, TCSCM, VCIM, VTD

U1088

DTC U1001-U1254

BCM, IPC, PCM, VCIM

U1096

DTC U1001-U1254

BCM, PCM, SDM

U1128

DTC U1001-U1254

Audio Amplifier, CDX, DRR, RSA, RSE, VCIM

U1129

DTC U1001-U1254

CDX, DRR, Radio, RSA, RSE, VCIM

U1130

DTC U1001-U1254

DRR, Radio, VCIM

U1133

DTC U1001-U1254

Radio

U1137

DTC U1001-U1254

Audio Amplifier, BCM, IPC, Radio

U1151

DTC U1001-U1254

CDX, DRR, Radio

U1152

DTC U1001-U1254

BCM, IPC

U1154

DTC U1001-U1254

RSA

U1160

DTC U1001-U1254

BCM, DSM, FPDM

U1161

DTC U1001-U1254

BCM, DDM, IPC

U1166

DTC U1001-U1254

BCM, DDM

U1167

DTC U1001-U1254

Audio Amplifier, BCM, CDX, DRR, HVAC Control Module, HVAC Control Module-Rear Auxiliary, Radio, VCIM

U1192

DTC U1001-U1254

BCM, IPC

U1241

DTC U1241 in SIR

SDM

U1300

DTC U1300, U1301, or U1305

CDX, DRR, EBCM, ESC, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, PCM, Radio, RSA, RSE, RWSCM, SDM, VCIM, VTD

U1301

DTC U1300, U1301, or U1305

CDX, DRR, EBCM, ESC, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, PCM, Radio, RSA, RSE, RWSCM, SDM, VCIM, VTD

U1305

DTC U1300, U1301, or U1305

Audio Amplifier, BCM, DDM, DSM, FPDM