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 |
|---|---|---|---|
| P1864 | Data bus powertrain missing message from ADR control module | 20 | Powertrain |
| P1865 | Data bus powertrain missing message from central electronics | 20 | Powertrain |
| P1866 | Short circuit to positive | 23 | Powertrain |
| P1867 | Short circuit to negative | 22 | Powertrain |
| P1868 | Transmission fluid life | 22 | Powertrain |
| P1869 | Short circuit to positive | 16 | Powertrain |
| P186A | Actuators supply 3 | 10 | Powertrain |
| P186B | Actuators supply 3 | 10 | Powertrain |
| P186C | Klahteritunduri 1 | 10 | Powertrain |
| P186D | Klahteritunduri 2 | 10 | Powertrain |
| P186E | Differential Oil Filter Leakage | 10 | Powertrain |
| P186F | Differential Control Module - Software Incompatibility | 11 | Powertrain |
| P1870 | Short circuit to negative | 24 | Powertrain |
| P1871 | Short circuit to positive | 24 | Powertrain |
| P1872 | Short circuit to positive | 24 | Powertrain |
| P1873 | Short circuit to positive | 24 | Powertrain |
| P1874 | Short circuit to positive | 25 | Powertrain |
| P1875 | Short circuit to positive | 26 | Powertrain |
| P1876 | implausible signal or value | 24 | Powertrain |
| P1877 | Short circuit to positive | 22 | Powertrain |
| P1878 | Short circuit to negative | 24 | Powertrain |
| P1879 | implausible signal or value | 21 | Powertrain |
| P187A | Transfer Case Control Module System Voltage Low - Rear Locking Differential Disabled | 10 | Powertrain |
| P187B | Tire Size Out Of Acceptable Range - AWD Disabled | 10 | Powertrain |
| P187C | Differential Lock-Up Control Circuit / Open | 10 | Powertrain |
| P187D | Differential Lock-Up Control Circuit Low | 8 | Powertrain |
| P187E | After the adaptation, the vehicle is not ready to drive and contains the DTC: - Oil pressure reservoir pressureless | 11 | Powertrain |
| P187F | Differential Lock-Up Input Switch Circuit Low | 8 | Powertrain |
| P1880 | Analog digital converter | 22 | Powertrain |
| P1881 | Short circuit to positive | 19 | Powertrain |
| P1882 | Short circuit to positive | 23 | Powertrain |
| P1883 | Short circuit to positive | 21 | Powertrain |
| P1884 | Short circuit to positive | 20 | Powertrain |
| P1885 | Short circuit to positive | 23 | Powertrain |
| P1886 | Shift Timing Solenoid | 23 | Powertrain |
| P1887 | Road speed signal wheel speed from brake control unit, implausible signal | 22 | Powertrain |
| P1888 | Torque converter clutch (TCC) enable solenoid control circuit low voltage | 25 | Powertrain |
| P1889 | Problem in CVT Speed Sensor 2 Circuit | 20 | Powertrain |
| P188A | Transmission range secondary input signal message counter incorrect | 11 | Powertrain |
| P188B | Active on-demand coupling clutch control circuit | 9 | Powertrain |
| P188D | All Wheel Drive Relay Module Feedback Circuit | 9 | Powertrain |
| P188E | Electric oil pump | 11 | Powertrain |
| P188F | Transfer Case Contact Plate Ground Return Short To Battery | 11 | Powertrain |
| P1890 | E-oil pump relay | 23 | Powertrain |
| P1891 | Neutral status (when in gear D) valve stuck (SLC1 stuck) | 19 | Powertrain |
| P1892 | Short circuit to negative | 18 | Powertrain |
| P1893 | Short circuit to positive | 15 | Powertrain |
| P1894 | Short circuit to negative | 17 | Powertrain |
| P1895 | Function restriction due to pressure drop | 24 | Powertrain |
| P1896 | Clutch 1 temperature shock | 18 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.