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 |
|---|---|---|---|
| P1897 | Short circuit to positive | 16 | Powertrain |
| P1898 | Short circuit to negative | 15 | Powertrain |
| P1899 | Clutch 2 functional impairment | 15 | Powertrain |
| P189A | Clutch 1 play too low | 10 | Powertrain |
| P189C | Functional impairment due to lack of pressure build-up | 10 | Powertrain |
| P189D | All wheel drive - Rear differential - Hydraulic fault | 10 | Powertrain |
| P189E | Pencacat satu atau beberapa mesej enjin lain rosak | 7 | Powertrain |
| P189F | Pencacat satu atau beberapa mesej ESP rosak | 7 | Powertrain |
| P18A0 | Transfer case - Motion position sensor | 11 | Powertrain |
| P18A1 | Transfer case - Range position sensor circuit | 11 | Powertrain |
| P18A2 | Transfer case - Actuator motor circuit | 11 | Powertrain |
| P18A3 | Transfer case - Solenoid circuit | 11 | Powertrain |
| P18A4 | SST-Anfangslernfehler | 10 | Powertrain |
| P18A5 | Käigukasti jahutuspump | 12 | Powertrain |
| P18A6 | Transmission parking inhibition actuator high control circuit | 11 | Powertrain |
| P18A7 | Transmission parking inhibition actuator high control circuit high voltage | 11 | Powertrain |
| P18A8 | SST initial learning error | 14 | Powertrain |
| P18A9 | Motor for clutch positioner implausible signal | 8 | Powertrain |
| P18AA | Transmission Range Control Valve 1 Position Switch Circuit Stuck On | 7 | Powertrain |
| P18AB | Motor 2 for girvelger, usannsynlig signal | 9 | Powertrain |
| P18AC | Väljarspak timeout | 8 | Powertrain |
| P18AD | Senzor obrtaja izlaza | 7 | Powertrain |
| P18AE | Transmission range control enable valve stuck on | 8 | Powertrain |
| P18AF | Transmission range control enable valve stuck off | 9 | Powertrain |
| P18B5 | Internal mode switch A circuit shorted | 11 | Powertrain |
| P18B6 | Internal mode switch B circuit shorted | 10 | Powertrain |
| P18B7 | Internal mode switch C circuit shorted | 10 | Powertrain |
| P18B8 | Key M Tiptronic | 8 | Powertrain |
| P18B9 | Internal mode switch S circuit shorted | 10 | Powertrain |
| P18BA | Internal Mode Switch A Stuck Off | 8 | Powertrain |
| P18BC | Key P Tiptronic | 8 | Powertrain |
| P18BF | Key R Tiptronic | 8 | Powertrain |
| P18C0 | Internal mode switch B stuck on | 10 | Powertrain |
| P18C2 | Key M Tiptronic | 8 | Powertrain |
| P18C3 | Internal Mode Switch S Stuck On | 8 | Powertrain |
| P18C4 | Gear position sensor circuit 1 low voltage | 8 | Powertrain |
| P18C5 | Gear position sensor circuit 1 high voltage | 9 | Powertrain |
| P18C6 | Zobrazení polohy volicí páky | 8 | Powertrain |
| P18C7 | Zobrazení polohy volicí páky | 7 | Powertrain |
| P18C8 | Gear Position Sensor Performance | 7 | Powertrain |
| P18C9 | Shift lever electric error | 8 | Powertrain |
| P18CA | Gear position sensor not learned | 9 | Powertrain |
| P18CB | Parking Assist System Performance | 8 | Powertrain |
| P18CC | Clutch motor Hall sensor signal is invalid | 8 | Powertrain |
| P18CD | Gearvælgerkontakt 1 ikke plausibel | 7 | Powertrain |
| P18CE | Transmission range selector switch 2 circuit erratic | 8 | Powertrain |
| P18CF | Transmission Range Selector Switch 2 Not Plausible | 7 | Powertrain |
| P18D0 | No communication with separating clutch actuator | 9 | Powertrain |
| P18D1 | Gearvælgerkontakt 3 ikke plausibel | 7 | Powertrain |
| P18D2 | Girkasseområdevelgerbryter 4 krets ustabil | 7 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.