GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

U1000 and U1255

DTC U1000 and U1255

Audio Amplifier, BCM, DAB, DDM, Digital Radio Receiver, EBCM, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, MSM, PCM, Radio, Rear Wheel Steering Control Module, Remote Playback Device-CD Player, RSA, RSE, SDM, Suspension Control Module, TCM, Theft Deterrent Control Module, Transfer Case Shift Control Module, VCIM

U1016

DTC U1001-U1254

BCM, DAB, DDM, Digital Radio Receiver, EBCM, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, Radio, Rear Wheel Steering Control Module, RSA, RSE, SDM, Suspension Control Module, TCM, Theft Deterrent Control Module, Transfer Case Shift Control Module, VCIM

U1026

DTC U1001-U1254

BCM, EBCM, IPC, PCM, Radio, Rear Wheel Steering Control Module, SDM, Suspension Control Module, TCM

U1041

DTC U1001-U1254

BCM, DDM, FPDM, HVAC Control Module, IPC, PCM, Rear Wheel Steering Control Module, SDM, Suspension Control Module, TCM, Transfer Case Shift Control Module

U1056

DTC U1001-U1254

BCM, EBCM, IPC, PCM, Rear Wheel Steering Control Module, SDM, TCM, Transfer Case Shift Control Module

U1064

DTC U1001-U1254

Audio Amplifier, BCM, DDM, Digital Radio Receiver, EBCM, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, MSM, PCM, Radio, Rear Wheel Steering Control Module, Remote Playback Device-CD Player, RSA, RSE, SDM, Suspension Control Module, TCM, Theft Deterrent Control Module, Transfer Case Shift Control Module, VCIM

U1088

DTC U1001-U1254

BCM, IPC, PCM

U1096

DTC U1001-U1254

BCM, PCM

U1128

DTC U1001-U1254

Audio Amplifier, DAB, Digital Radio Receiver, Remote Playback Device-CD Player, RSA, RSE, VCIM

U1129

DTC U1001-U1254

DAB, Digital Radio Receiver, Radio, Remote Playback Device-CD Player, RSA, RSE, VCIM

U1241

DTC U1241 in SIR

SDM

U1130

DTC U1001-U1254

DAB, Digital Radio Receiver, Radio, VCIM

U1133

DTC U1001-U1254

Radio

U1151

DTC U1001-U1254

DAB, Digital Radio Receiver, Radio, Remote Playback Device-CD Player

U1152

DTC U1001-U1254

BCM, IPC

U1154

DTC U1001-U1254

RSA

U1160

DTC U1001-U1254

BCM, FPDM, MSM

U1161

DTC U1001-U1254

BCM, DDM, MSM

U1166

DTC U1001-U1254

BCM, DDM

U1167

DTC U1001-U1254

Audio Amplifier, BCM, DAB, Digital Radio Receiver, HVAC Control Module, HVAC Control Module-Rear Auxiliary, Radio, Remote Playback Device-CD Player, VCIM

U1192

DTC U1001-U1254

BCM, IPC

U1300, U1301, and U1305

DTC U1300, U1301, or U1305

Audio Amplifier, BCM, DAB, DDM, Digital Radio Receiver, EBCM, FPDM, HVAC Control Module, HVAC Control Module-Rear Auxiliary, IPC, MSM, PCM, Radio, Rear Wheel Steering Control Module, Remote Playback Device-CD Player, RSA, RSE, SDM, Suspension Control Module, TCM, Theft Deterrent Control Module, Transfer Case Shift Control Module, VCIM