GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module

U1000

DTC U1000 and U1255

BCM, IPC, TCSCM, PCM, SDM, EBCM, DIC

U1016

DTC U1001-U1254

BCM, IPC, SDM

U1026

DTC U1001-U1254

PCM

U1041

DTC U1001-U1254

PCM, IPC, SDM

U1064

DTC U1001-U1254

PCM, IPC, SDM

U1088

DTC U1001-U1254

PCM, BCM

U1096

DTC U1001-U1254

SDM, BCM, PCM

U1097

DTC U1001-U1254

PCM, IPC

U1255

DTC U1000 and U1255

BCM, IPC, TCSCM, PCM, SDM, EBCM, DIC

U1300

DTC U1300, U1301, or U1305

BCM, IPC, TCSCM, PCM, SDM, EBCM, DIC

U1301

DTC U1300, U1301, or U1305

BCM, IPC, TCSCM, PCM, SDM, EBCM, DIC

U1305

DTC U1300, U1301, or U1305

BCM, IPC, TCSCM, PCM, SDM, EBCM, DIC