GM Service Manual Online
For 1990-2009 cars only

Description

Module

U1000 Generic Loss of Serial Communications DTC U1000 and DTC U1255 Class 2 Communication Malfunction

MSM, RFA, SDM

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

EBCM/TCM, DIM, HUD, IPC, IPM, MSM, SDM

U1040 Loss of Serial Communications with the ABS DTC U1001-U1254 Loss of XXX Communications

IPC, SDM,

U1064 Loss of Serial Communications with the DIM DTC U1001-U1254 Loss of XXX Communications

EBCM, CCP, CDX, DDM, HUD, IPC, IPM, IRC, MSM, RIM, SDM

U1065 Loss of Serial Communications with the CCP/IPM DTC U1001-U1254 Loss of XXX Communications

DIM, DDM, IPC, IRC, RIM

U1066 Loss of Serial Communications with the RIM DTC U1001-U1254 Loss of XXX Communications

CCP, DDM, IPM

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

HUD, IPC

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

HUD, SDM

U1128 Loss of Serial Communications with the IRC DTC U1001-U1254 Loss of XXX Communications

CDX

U1130 Loss of Serial Communications with the CDX DTC U1001-U1254 Loss of XXX Communications

IRC

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

DIM, IPC, IRC, MSM, RIM

U1255 Generic Loss of Serial Communications DTC U1000 and DTC U1255 Class 2 Communication Malfunction

EBCM, CCP, CDX, DIM, DDM, HUD, IPC, IPM, IRC, PCM, RIM, SDM

DTC U1300 Class 2 Data Link Low

EBCM, CCP, CDX, DIM, DDM, HUD, IPC, IPM, IRC, PCM, RIM, SDM

DTC U1301 Class 2 Data Link High

EBCM, CCP, CDX, DIM, DDM, HUD, IPC, IPM, IRC, PCM, RIM, SDM

DTC U1305 Class 2 Data Link Low or High

MSM, RFA