CHEVROLET fault codes
Coverage shown is GM data: 17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters.
CHEVROLET shares fault-code data with GM. Data may not cover CHEVROLET-specific systems.
Codes 17,703
| Code | Description | Brands | System |
|---|---|---|---|
| U11AF | CMU02 CAN timeout | 8 | Network |
| U11C2 | No description available | 6 | Network |
| U11D5 | Lost communication with the electric vehicle management electronic control unit | 8 | Network |
| U11D7 | Traction control (anti-slip regulation) failure | 8 | Network |
| U11DB | No description available | 7 | Network |
| U11DD | Communication error with network voltage maintenance device ECU | 7 | Network |
| U11FD | No description available | 6 | Network |
| U11FF | No description available | 6 | Network |
| U1200 | Loss of serial communications for class 2 devices | 23 | Network |
| U1201 | Communication error | 21 | Network |
| U1202 | MCU CAN communication error 2 | 20 | Network |
| U1203 | Loss of serial communications for class 2 devices | 23 | Network |
| U1204 | Loss of serial communications for class 2 devices | 21 | Network |
| U1205 | No communication with the steering angle sensor | 23 | Network |
| U1206 | Loss of serial communications for class 2 devices | 18 | Network |
| U1207 | Lost communication with hybrid power management electronic control unit 1 | 15 | Network |
| U1208 | No communication with engine control unit | 11 | Network |
| U1209 | No communication with automatic transmission electronic control unit | 11 | Network |
| U120C | No description available | 3 | Network |
| U1210 | Lost communication with automatic transmission electronic control unit | 16 | Network |
| U1211 | Engine parity/toggle bit error | 14 | Network |
| U1212 | CAN network | 15 | Network |
| U1213 | The information sent by the electronic stability program ECU is faulty. | 17 | Network |
| U1214 | Loss of serial communications for class 2 devices | 12 | Network |
| U1215 | Loss of serial communications for class 2 devices | 10 | Network |
| U1216 | CAN line (connection with suspension) | 11 | Network |
| U1217 | Invalid or missing data for external lamp outage | 16 | Network |
| U1218 | CAN BCM invalid value | 17 | Network |
| U1219 | Automatic release electronic parking brake failure | 9 | Network |
| U121D | Lost communication with Passive Entry Passive Start | 8 | Network |
| U121E | Vehicle Control Unit (VCU) CAN 1 network segment lost communication with FCM | 9 | Network |
| U1220 | Loss of serial communications for class 2 devices | 10 | Network |
| U1221 | Loss of serial communications for class 2 devices | 14 | Network |
| U1222 | Loss of serial communications for class 2 devices | 15 | Network |
| U1223 | Loss of serial communications for class 2 devices | 9 | Network |
| U1224 | FlexRay communication fault | 9 | Network |
| U1225 | Yaw rate sensor signal fault | 11 | Network |
| U1226 | Loss of serial communications for class 2 devices | 8 | Network |
| U1227 | Loss of serial communications for class 2 devices | 7 | Network |
| U1228 | Loss of serial communications for class 2 devices | 7 | Network |
| U1229 | Loss of serial communications for class 2 devices | 7 | Network |
| U122F | Digital Audio Broadcast Tuner | 8 | Network |
| U1230 | CAN network | 7 | Network |
| U1231 | Loss of serial communications for class 2 devices | 5 | Network |
| U1232 | Loss of serial communications for class 2 devices | 13 | Network |
| U1233 | Reversible alternator | 13 | Network |
| U1234 | Loss of serial communications for class 2 devices | 11 | Network |
| U1235 | IP address conflict | 13 | Network |
| U1236 | No communication in driving profile rotary switch | 12 | Network |
| U1237 | Loss of serial communications for class 2 devices | 5 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.