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 |
|---|---|---|---|
| P1760 | Brake switch | 32 | Powertrain |
| P1761 | EGS: Solenoid, shiftlock | 31 | Powertrain |
| P1762 | Overdrive band failed off | 26 | Powertrain |
| P1763 | Shift lock open | 23 | Powertrain |
| P1764 | Instrument cluster triggering | 23 | Powertrain |
| P1765 | EGS: CAN throttle | 29 | Powertrain |
| P1766 | implausible signal or value | 24 | Powertrain |
| P1767 | implausible signal or value | 26 | Powertrain |
| P1768 | Perf/Normal/Winter Mode Input | 25 | Powertrain |
| P1769 | Hydraulic pressure sensor 2 too low | 27 | Powertrain |
| P176A | Intermediate speed sensor circuit no signal | 13 | Powertrain |
| P176B | Intermediate speed sensor circuit performance | 11 | Powertrain |
| P176C | Intermediate speed sensor circuit low voltage | 11 | Powertrain |
| P176D | Intermediate speed sensor circuit high voltage | 12 | Powertrain |
| P176E | Clutch 2 opens unintentionally | 10 | Powertrain |
| P176F | Clutch 2 closes unintentionally | 10 | Powertrain |
| P1770 | Clutch solenoid circuit | 28 | Powertrain |
| P1771 | Load signal stuck off | 27 | Powertrain |
| P1772 | Load Signal Stuck On | 25 | Powertrain |
| P1773 | Hydraulic Pressure Sensor 1 Too High | 25 | Powertrain |
| P1774 | Hydraulic Pressure Sensor 1 Too Low | 24 | Powertrain |
| P1775 | Gear release failed | 30 | Powertrain |
| P1776 | Torque Down Signal #2 Circuit | 27 | Powertrain |
| P1777 | Ignition Retard Request Circuit | 24 | Powertrain |
| P1778 | Transmission Reverse I/P Circuit | 24 | Powertrain |
| P1779 | Supply voltage missing | 23 | Powertrain |
| P177A | Backup parking lock actuator status message counter incorrect | 14 | Powertrain |
| P177B | Clutch 1 tolerance limit reached | 13 | Powertrain |
| P177C | Clutch actuator driver high current | 12 | Powertrain |
| P177D | Transmission control module driver internal supply low voltage | 12 | Powertrain |
| P177E | Functional impairment due to pressure drop | 10 | Powertrain |
| P177F | Hydraulic pump motor low voltage | 12 | Powertrain |
| P1780 | EGS: Torque intervention | 30 | Powertrain |
| P1781 | Parking lock power relay circuit | 26 | Powertrain |
| P1782 | Under status, open load | 25 | Powertrain |
| P1783 | Control output signal is incorrect | 27 | Powertrain |
| P1784 | ENV_ _Gesamtzeit | 28 | Powertrain |
| P1785 | Shift up/down wire short to battery (+) | 24 | Powertrain |
| P1786 | Mode switch input malfunction | 22 | Powertrain |
| P1787 | Druckregler G Kurzschluss nach Masse oder Unterbrechung | 24 | Powertrain |
| P1788 | Pressure control solenoid B open circuit | 22 | Powertrain |
| P1789 | Pressure control solenoid B short circuit | 24 | Powertrain |
| P178A | Transmission range selector shaft position sensor performance | 12 | Powertrain |
| P178B | Hydraulic pump implausible response | 10 | Powertrain |
| P178C | Druckregler D Kurzschluss nach Plus oder Unterbrechung | 9 | Powertrain |
| P178D | Backup parking lock actuator performance | 10 | Powertrain |
| P178E | Druckregler F Kurzschluss nach Plus oder Unterbrechung | 8 | Powertrain |
| P178F | Druckregler G Kurzschluss nach Plus oder Unterbrechung | 8 | Powertrain |
| P1790 | Fault immediately after shift | 30 | Powertrain |
| P1791 | implausible signal or value | 25 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.