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 .

SDM

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

BCM, EBCM, IPC, SDM

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

BCM, IPC, SDM

DTC U1064 Loss of BCM Communications. Refer to DTC U1001-U1254 Loss of XXX Communications .

IPC

DTC U1088 Loss of SIR Communications. Refer to DTC U1001-U1254 Loss of XXX Communications .

IPC

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

SDM

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

BCM

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

BCM, EBCM, IPC, SDM

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

BCM, EBCM, IPC, SDM