GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

U1000

DTC U1000 and U1255

PCM, EBCM, BCM, SDM, IPC, IRC, RCDLR

U1016

DTC U1001-U1254

EBCM, BCM, SDM, IPC, IRC,

U1040

DTC U1001-U1254

PCM, BCM, SDM

U1064

DTC U1001-U1254

PCM, EBCM, SDM, IRC

U1088

DTC U1001-U1254

PCM, EBCM, BCM

U1096

DTC U1001-U1254

PCM, EBCM, BCM

U1128

DTC U1001-U1254

BCM

U1176

DTC U1001-U1254

BCM

U1300

DTC U1300

PCM, EBCM, BCM, SDM, IRC, IPC, RCDLR

U1301

DTC U1301

PCM, EBCM, BCM, SDM, IRC, IPC, RCDLR