GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

U1000 and U1255

DTC U1000 and U1255

BCM, EBCM, IPC, PCM, Radio, RCDLR, SDM, VCIM

U1016

DTC U1001-U1254

BCM, EBCM, IPC, Radio, RCDLR, SDM, VCIM

U1041

DTC U1001-U1254

BCM, IPC, PCM, Radio, RCDLR, SDM, VCIM

U1064

DTC U1001-U1254

EBCM, IPC, PCM, Radio, RCDLR, SDM, VCIM

U1088

DTC U1001-U1254

BCM, EBCM, IPC, PCM, Radio, RCDLR, VCIM

U1096

DTC U1001-U1254

BCM, EBCM, PCM, Radio, RCDLR, SDM, VCIM

U1128

DTC U1001-U1254

VCIM, SDM

U1151

DTC U1001-U1254

Radio

U1176

DTC U1001-U1254

BCM

U1300, U1301, and U1305

DTC U1300, U1301, or U1305

BCM, EBCM, IPC, PCM, Radio, RCDLR, SDM, VCIM