GM Service Manual Online
For 1990-2009 cars only

DTC

Description

Type

Illuminate SERVICE VEHICLE SOON

U1000

DTC U1000 Class 2 Communication Malfunction

Class 2

No

U1016

DTC U1016 Loss of Communications with PCM

Class 2

No

U1040

DTC U1040 Loss of Class 2 Communications with ABS

Class 2

No

U1064

DTC U1064 Lost Communications with BCM

Class 2

No

U1088

DTC U1088 Loss of Communications with SDM

Class 2

No

U1096

DTC U1096 Loss of Communications with IPC

Class 2

No

U1144

DTC U1144 Loss of Communications with PHN

Class 2

No

U1152

DTC U1152 Loss of Data HCM

Class 2

No

U1160

DTC U1160 Loss of Communications with DDM

Class 2

No

U1161

DTC U1161 Loss of PASS Door Module SBI

Class 2

No

U1162

DTC U1162 Loss of Rear Driver Door Module SBI

Class 2

No

U1166

DTC U1166 Loss of Communications with SCM

Class 2

No

U1170

DTC U1170 Loss of Driver Door Switch SBI

Class 2

No

U1176

DTC U1176 Loss of Communications with RFA

Class 2

No

U1192

DTC U1192 Loss of VTD Class 2 Serial Data Com

Class 2

No

U1255

DTC U1255 Generic Loss of Class 2 Data

Class 2

No

U1300

DTC U1300 Class 2 Short to Ground

Class 2

No

U1301

DTC U1301 Class 2 Short to Battery

Class 2

No