GM Service Manual Online
For 1990-2009 cars only

Description

Module

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

BCM, DIC, EBCM, IPC, Radio, SDM

DTC U1016 Loss of PCM Communications. Refer to DTC U1XXX Lost Communication with XXX .

BCM, DIC, EBCM, IPC, Radio, SDM

DTC U1040 Loss of EBCM Communications. Refer to DTC U1XXX Lost Communication with XXX .

BCM, DIC, IPC, Radio, SDM

DTC U1064 Loss Communications with Body Control System. Refer to DTC U1XXX Lost Communication with XXX .

BCM, DIC, IPC, Radio, SDM

DTC U1088 Loss of SIR/SDM Communications. Refer to DTC U1XXX Lost Communication with XXX .

IPC, Radio

DTC U1096 Loss of IPC Communications. Refer to DTC U1XXX Lost Communication with XXX .

DIC, SDM

DTC U1128 Loss of Radio Communications. Refer to DTC U1XXX Lost Communication with XXX .

Radio

DTC U1147 Lost Communications with Mobile Communications Control System. Refer to DTC U1XXX Lost Communication with XXX .

Radio

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

BCM, EBCM

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

BCM, EBCM, Radio, SDM

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

BCM, EBCM, Radio, SDM

DTC U1305 Class 2 Data Link Low or High. Refer to DTC U1305 Class 2 Data Link Low or High .

DIC