GMC fault codes
Coverage shown is GM data: 17,703 codes · 2,212 vehicle records · 180 ECU records · 10,756 live-data parameters.
GMC shares fault-code data with GM. Data may not cover GMC-specific systems.
Codes 17,703
| Code | Description | Brands | System |
|---|---|---|---|
| P11BE | NO. 447 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11BF | NO. 448 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11C0 | NO. 449 battery voltage sampling wire loop fault | 11 | Powertrain |
| P11C1 | NO. 450 battery voltage sampling wire loop fault | 11 | Powertrain |
| P11C2 | NO. 451 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11C3 | NO. 452 battery voltage sampling wire loop fault | 13 | Powertrain |
| P11C4 | NO. 453 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11C5 | NO. 454 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11C6 | NO. 455 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11C7 | NO. 456 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11C8 | NO. 457 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11C9 | NO. 458 battery voltage sampling wire loop fault | 9 | Powertrain |
| P11CB | NO. 460 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11CC | NO. 461 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11CE | NO. 463 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11D0 | NO. 465 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11D1 | NO. 466 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11D2 | NO. 467 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11D3 | NO. 468 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11D4 | NO. 469 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11D5 | NO. 470 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11D6 | NO. 471 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11D7 | NO. 472 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11D8 | NO. 473 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11D9 | NO. 474 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11DA | NO. 475 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11DB | NO. 476 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11DC | NO. 477 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11DD | NO. 478 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11DE | NO. 479 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11DF | NO. 480 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11E0 | NO. 481 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11E1 | NO. 482 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11E2 | NO. 483 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11E3 | NO. 484 battery voltage sampling wire loop fault | 10 | Powertrain |
| P11E4 | NO. 485 battery voltage sampling wire loop fault | 11 | Powertrain |
| P11E5 | NO. 486 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11E6 | NO. 487 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11E7 | NO. 488 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11E8 | NO. 489 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11E9 | NO. 490 battery voltage sampling wire loop fault | 8 | Powertrain |
| P11EA | Alternative fuel trim system rich | 9 | Powertrain |
| P11EB | Alternative fuel trim system lean bank 2 | 9 | Powertrain |
| P11EC | Alternative fuel trim system rich bank 2 | 9 | Powertrain |
| P11ED | Alternative fuel trim cylinder balance | 9 | Powertrain |
| P11EE | Alternative fuel trim cylinder balance bank 2 | 9 | Powertrain |
| P11EF | Post catalyst alternative fuel trim system low limit | 9 | Powertrain |
| P11F0 | Post catalyst alternative fuel trim system high limit | 12 | Powertrain |
| P11F1 | Post catalyst alternative fuel trim system low limit bank 2 | 12 | Powertrain |
| P11F2 | Post catalyst alternative fuel trim system high limit bank 2 | 11 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.