GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

U1000

DTC U1000 and U1255

MSM, Radio, RCDLR, SDM, VCIM, VIU

U1016

DTC U1001-U1254

EBCM, DIM, HUD, IPC, IPM, MSM, SDM, Theft Deterrent Control Module, RCDLR, VCIM, VIU

U1040

DTC U1001-U1254

IPC, SDM

U1064

DTC U1001-U1254

EBCM, DDM, HUD, HVAC Control Module, IPC, IPM, MSM, Radio, Remote Playback Device - CD Changer, RIM, SDM, Theft Deterrent Control Module, VCIM, VIU

U1065

DTC U1001-U1254

DIM, DDM, IPC, Radio, RIM

U1066

DTC U1001-U1254

DDM, IPC, IPM, HVAC Control Module

U1088

DTC U1001-U1254

HUD, IPC

U1096

DTC U1001-U1254

HUD, SDM

U1128

DTC U1001-U1254

Remote Playback Device - CD Changer, VCIM, VIU

U1130

DTC U1001-U1254

Radio

U1151

DTC U1001-U1254

Radio

U1160

DTC U1001-U1254

DIM, IPC, MSM, Radio, RIM

U1192

DTC U1001-U1254

IPC

U1255

DTC U1000 and U1255

EBCM, DIM, DDM, HUD, HVAC Control Module, IPC, IPM, PCM, Radio, Remote Playback Device - CD Changer, RCDLR, RIM, SDM

U1300

DTC U1300, U1301, or U1305

EBCM, DDM, DIM, HUD, HVAC Control Module, IPC, IPM, MSM, PCM, Radio, RCDLR, Remote Playback Device - CD Changer, RIM, SDM, Theft Deterrent Control Module, VCIM, VIU

U1301

DTC U1300, U1301, or U1305

EBCM, DDM, DIM, HUD, HVAC Control Module, IPC, IPM, MSM, PCM, Radio, RCDLR, Remote Playback Device - CD Changer, RIM, SDM, Theft Deterrent Control Module, VCIM, VIU

U1305

DTC U1300, U1301, or U1305

EBCM, DDM, DIM, HUD, HVAC Control Module, IPC, IPM, MSM, PCM, Radio, RCDLR, Remote Playback Device - CD Changer, RIM, SDM, Theft Deterrent Control Module, VCIM, VIU