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 |
|---|---|---|---|
| U18B0 | Lost Communication with Instrument Cluster on Infotainment Ethernet Bus | 6 | Network |
| U18B1 | Lost Communication with Audio Amplifier on Infotainment Ethernet Bus | 6 | Network |
| U18B2 | Lost Communication with Rear Audio Control Module on Infotainment Ethernet Bus | 6 | Network |
| U18B3 | Lost Communication with Navigation Control Module on Infotainment Ethernet Bus | 6 | Network |
| U18B4 | Lost Communication with Radio on Ethernet Bus | 6 | Network |
| U18B5 | Lost Communication With Hybrid Powertrain Control Module on Chassis Expansion CAN Bus | 6 | Network |
| U18B6 | No description available | 6 | Network |
| U18B7 | No description available | 4 | Network |
| U18B8 | No description available | 6 | Network |
| U18B9 | Primary High Speed CAN Bus Subnet Configuration List | 6 | Network |
| U18BA | Lost Communication with Power Steering Control Module on High Speed CAN Bus | 6 | Network |
| U18BB | No description available | 6 | Network |
| U18BE | LIN Subnet Configuration Lists | 6 | Network |
| U18BF | Secondary High Speed CAN Bus Subnet Configuration List | 7 | Network |
| U18C0 | No description available | 6 | Network |
| U18C1 | No description available | 6 | Network |
| U18C2 | Lost Communication with Frontview Camera Module on Flexray Bus | 6 | Network |
| U18C3 | Lost Communication with Video Processing Control Module on High Speed CAN Bus | 7 | Network |
| U18C4 | Lost Communication with Video Processing Control Module on Low Speed CAN Bus | 6 | Network |
| U18C5 | No description available | 6 | Network |
| U18C6 | Transmission Range Control Module Lost Communication with Engine Control Module on Powertrain Sensor CAN Bus | 6 | Network |
| U18C7 | Transmission Range Control Module Lost Communication with Engine Control Module on Powertrain Expansion CAN Bus | 6 | Network |
| U18C8 | No description available | 6 | Network |
| U18C9 | Head-Up Display Lost Communication with Instrument Cluster on Dedicated Bus 1 | 6 | Network |
| U18CA | No description available | 6 | Network |
| U18CB | No description available | 6 | Network |
| U18CC | No description available | 6 | Network |
| U18CD | Lost Communication with Left Side Object Detection Control Module on Dedicated Bus 1 | 6 | Network |
| U18CE | Lost Communication with Right Side Object Detection Control Module on Dedicated Bus 1 | 6 | Network |
| U18CF | No description available | 6 | Network |
| U18D0 | No description available | 6 | Network |
| U18D2 | No description available | 6 | Network |
| U18D3 | No description available | 6 | Network |
| U18D4 | No description available | 6 | Network |
| U18D5 | No description available | 6 | Network |
| U18D6 | No description available | 6 | Network |
| U18D7 | No description available | 6 | Network |
| U18D8 | No description available | 6 | Network |
| U18D9 | No description available | 6 | Network |
| U18DA | No description available | 6 | Network |
| U18DB | No description available | 6 | Network |
| U18DC | No description available | 6 | Network |
| U18DD | No description available | 6 | Network |
| U18DE | No description available | 6 | Network |
| U18E0 | No description available | 6 | Network |
| U18E1 | No description available | 6 | Network |
| U18E6 | No description available | 6 | Network |
| U18E9 | No description available | 6 | Network |
| U18EB | No description available | 6 | Network |
| U18ED | No description available | 6 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.