GM fault codes
17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters
Codes 17,703
| Code | Description | Brands | System |
|---|---|---|---|
| U1127 | 4WD (CAN message) | 22 | Network |
| U1128 | Meter (CAN message) | 24 | Network |
| U1129 | ETACS (CAN message) | 21 | Network |
| U112F | Lost communication with RR seat pre-collision seatback ECU | 10 | Network |
| U1130 | CAN network | 20 | Network |
| U1131 | Display (CAN message) | 21 | Network |
| U1132 | SRS airbag (CAN message) | 17 | Network |
| U1133 | LIN network | 23 | Network |
| U1134 | Lost stop/start switch 2 message | 12 | Network |
| U1135 | Valid except code 200 | 20 | Network |
| U1136 | KOS (CAN message) | 22 | Network |
| U1137 | Invalid or missing data for telltales | 15 | Network |
| U1138 | 4WD CAN timeout | 16 | Network |
| U1139 | Communication error (invalid) | 13 | Network |
| U113F | No description available | 6 | Network |
| U1140 | Valid except model 257 and model 290 | 15 | Network |
| U1141 | Valid except model 213, 238, 257, 290 | 13 | Network |
| U1142 | Loss of serial communications for class 2 devices | 13 | Network |
| U1143 | Valid up to model year 2021 | 9 | Network |
| U1144 | Loss of Communications with PHN | 12 | Network |
| U1145 | Loss Of NAV Communications | 10 | Network |
| U1146 | Loss of OnStar communication | 14 | Network |
| U1147 | Loss of serial communications for class 2 devices | 14 | Network |
| U1148 | Loss of serial communications for class 2 devices | 12 | Network |
| U1149 | Loss of serial communications for class 2 devices | 10 | Network |
| U1150 | Communication failure with battery management system (BMS) | 17 | Network |
| U1151 | Loss of serial communications for class 2 devices | 17 | Network |
| U1152 | Lost communication with remote heater and air conditioning control module | 10 | Network |
| U1153 | CAN suspension network | 13 | Network |
| U1154 | Loss of serial communications for class 2 devices | 12 | Network |
| U1155 | Loss of serial communications for class 2 devices | 9 | Network |
| U1156 | Loss of serial communications for class 2 devices | 11 | Network |
| U1157 | No communication with hybrid management ECU1 on suspension and wheel CAN network | 10 | Network |
| U1158 | Lost communication with engine ECU on suspension and wheel CAN network | 11 | Network |
| U1159 | Loss of serial communications for class 2 devices | 11 | Network |
| U115A | ESP2 CAN signal receiving timeout | 9 | Network |
| U115B | No description available | 8 | Network |
| U115C | Lost Communication with Parking Distance Control Module | 9 | Network |
| U115D | ASR (HS2) message lost - SEL_4FD/ASRPLUS_SELECTOR_FRAME | 9 | Network |
| U115E | No description available | 8 | Network |
| U115F | Anti-lock brake system (ABS3) CAN frame data length error | 8 | Network |
| U1160 | EV-ECU CAN timeout | 15 | Network |
| U1161 | PHEV-ECU message lost (BMU) | 11 | Network |
| U1162 | Vehicle distance alarm ECU is causing operation failure | 16 | Network |
| U1163 | Lost communication with front radar | 12 | Network |
| U1164 | Loss Of DIM Serial Data Communication | 14 | Network |
| U1165 | E-Call/TCU CAN timeout | 13 | Network |
| U1166 | Loss of Communications with SCM | 11 | Network |
| U1167 | Loss of serial communications for class 2 devices | 18 | Network |
| U1168 | Loss Of TTM Communications | 10 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.