GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

U1000

DTC U1000 and U1255

SDM, Theft Deterrent Control Module, VIU

U1016

DTC U1001-U1254

BCM, DDM, EBCM, IPM, IPC, MSM, SDM, Theft Deterrent Control Module, VIU

U1040

DTC U1001-U1254

IPC, PCM, SDM

U1064

DTC U1001-U1254

DDM, IPM, IPC, PCM, SDM, Theft Deterrent Control Module, VIU

U1088

DTC U1001-U1254

IPC

U1096

DTC U1001-U1254

BCM, IPM, PCM, SDM

U1152

DTC U1001-U1254

BCM

U1160

DTC U1001-U1254

BCM

U1176

DTC U1001-U1254

DDM, VIU

U1255

DTC U1000 and U1255

BCM, DDM, EBCM, IPM, IPC, MSM, PCM

U1300

DTC U1300, U1301, or U1305

BCM, DDM, EBCM, IPM, IPC, MSM, PCM, SDM, VIU

U1301

DTC U1300, U1301, or U1305

BCM, DDM, EBCM, IPM, IPC, MSM, PCM, SDM, VIU