GM Service Manual Online
For 1990-2009 cars only

Description

Module

U1000 Loss of Class 2 serial Communications DTC U1000 and DTC U1255 Class 2 Communication Malfunction

SDM, VTD

U1016 Loss of Communications with the PCM DTC U1001-U1254 Loss of XXX Communications

EBCM, DDM, HCM, IPC, MSM, SBM, SDM, VTD

U1040 Loss of EBCM /EBTCM Communication DTC U1001-U1254 Loss of XXX Communications

PCM, IPC, SDM

U1064 Loss of Data SBM DTC U1001-U1254 Loss of XXX Communications

DDM, HCM, IPC, PCM, SDM, VTD

U1088 Loss of Communications with SDM DTC U1001-U1254 Loss of XXX Communications

IPC

U1096 Loss of Communications with IPC DTC U1001-U1254 Loss of XXX Communications

HCM, PCM, SBM, SDM

U1152 Loss of Data HCM DTC U1001-U1254 Loss of XXX Communications

SBM

U1160 Loss of Communications with DDM DTC U1001-U1254 Loss of XXX Communications

SBM

U1176 Loss of Communications with RFA DTC U1001-U1254 Loss of XXX Communications

DDM

U1255 Class 2 Data Link Malfunction DTC U1000 and DTC U1255 Class 2 Communication Malfunction

EBCM, DDM, HCM, IPC, MSM, PCM, SBM

U1300 Class 2 Data Link Low DTC U1300 Class 2 Data Link Low

EBCM, DDM, HCM, IPC, MSM, PCM, SBM, SDM

U1301 Class 2 Data Link High DTC U1301 Class 2 Data Link High

EBCM, DDM, HCM, IPC, MSM, PCM, SBM, SDM