GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

U1000 and U1255

DTC U1000 and U1255

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

U1016

DTC U1001-U1254

Audio Amplifier, BCM, DDM, Digital Radio Receiver, EBCM, FPDM, HVAC Control Module, IPC, MSM, Radio, Rear Wheel Steering Control Module, SDM, TCM, Transfer Case Shift Control Module, VCIM

U1026

DTC U1001-U1254

BCM, EBCM, ECM/PCM, IPC, Rear Wheel Steering Control Module, SDM, TCM

U1041

DTC U1001-U1254

BCM, DDM, ECM/PCM, SDM, TCM

U1064

DTC U1001-U1254

DDM, EBCM, ECM/PCM, FPDM, HVAC Control Module, IPC, Radio, SDM, Transfer Case Shift Control Module, VCIM

U1088

DTC U1001-U1254

BCM, IPC

U1096

DTC U1001-U1254

BCM, IPC, SDM

U1128

DTC U1001-U1254

Audio Amplifier, Remote Playback Device-CD Player, VCIM

U1129

DTC U1001-U1254

Digital Radio Receiver, Radio, VCIM

U1130

DTC U1001-U1254

Audio Amplifier, Radio

U1151

DTC U1001-U1254

Audio Amplifier, BCM, IPC, Radio

U1152

DTC U1001-U1254

BCM

U1154

DTC U1001-U1254

BCM, Radio

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, Digital Radio Receiver, IPC, Radio

U1192

DTC U1001-U1254

BCM, IPC

U1241

DTC U1241 in SIR

SDM

U1300, U1301, and U1305

DTC U1300, U1301, or U1305

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