GM Service Manual Online
For 1990-2009 cars only

Description

Module

DTC U1000 Class 2 Data Link Malfunction. Refer to DTC U1000 and DTC U1255 Class 2 Communication Malfunction .

EBCM, IPC, PCM, SDM,

DTC U1016 Loss of PCM Communications. Refer to DTC U1001-U1254 Lost Communication with XXX .

EBCM, IPC,SDM

DTC U1040 Loss of EBCM Communications. Refer to DTC U1001-U1254 Lost Communication with XXX .

IPC, PCM, SDM

DTC U1088 Loss of SIR/SDM Communications. Refer to DTC U1001-U1254 Lost Communication with XXX .

IPC

DTC U1096 Loss of IPC Communications. Refer to DTC U1001-U1254 Lost Communication with XXX .

EBCM, PCM, SDM

DTC U1300 Class 2 Data Link Low. Refer to DTC U1300 Class 2 Data Link Low .

EBCM, IPC, PCM, SDM

DTC U1301 Class 2 Data Link High. Refer to DTC U1301 Class 2 Data Link High .

EBCM, IPC, PCM, SDM