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 |
|---|---|---|---|
| P2485 | Exhaust gas temperature sensor circuit/open bank 2 sensor 5 | 18 | Powertrain |
| P2486 | Exhaust gas temperature sensor circuit low bank 2 sensor 5 | 18 | Powertrain |
| P2487 | Exhaust gas temperature sensor circuit high bank 2 sensor 5 | 18 | Powertrain |
| P2488 | Exhaust gas temperature sensor circuit range/performance bank 2 sensor 5 | 18 | Powertrain |
| P2489 | Exhaust gas temperature sensor circuit intermittent/erratic bank 2 sensor 5 | 17 | Powertrain |
| P248A | Reductant heater 'A' sense circuit low | 10 | Powertrain |
| P248B | Reductant heater 'A' sense circuit high | 10 | Powertrain |
| P248C | Reductant heater 'B' sense circuit low | 11 | Powertrain |
| P248D | Reductant heater 'B' sense circuit high | 10 | Powertrain |
| P2493 | EGR cooler bypass position sensor range/performance bank 1 | 10 | Powertrain |
| P2494 | EGR cooler bypass position sensor circuit low bank 1 | 10 | Powertrain |
| P2495 | EGR cooler bypass position sensor circuit high bank 1 | 10 | Powertrain |
| P249C | Excessive time to enter closed loop reductant injection control | 15 | Powertrain |
| P249D | Closed loop reductant injection control at limit - flow too low | 15 | Powertrain |
| P249E | Closed loop reductant injection control at limit - flow too high | 15 | Powertrain |
| P24A0 | Closed loop particulate filter regeneration control at limit - temperature too low | 14 | Powertrain |
| P24A1 | Closed loop particulate filter regeneration control at limit - temperature too high | 14 | Powertrain |
| P24A2 | Particulate filter regeneration incomplete bank 1 | 14 | Powertrain |
| P24A3 | Particulate filter restriction - soot accumulation bank 2 | 11 | Powertrain |
| P24A4 | Gasoline Particulate Filter (GPF) blocked | 26 | Powertrain |
| P24A5 | EGR cooler bypass control stuck/open bank 1 | 10 | Powertrain |
| P24A7 | EGR cooler coolant pump control circuit/open | 13 | Powertrain |
| P24A8 | EGR cooler coolant pump performance/stuck off | 13 | Powertrain |
| P24A9 | EGR cooler coolant pump control circuit low | 10 | Powertrain |
| P24AA | EGR cooler coolant pump control circuit high | 12 | Powertrain |
| P24AC | EGR cooler coolant pump feedback circuit low | 10 | Powertrain |
| P24AD | EGR cooler coolant pump feedback circuit high | 10 | Powertrain |
| P24AE | Particulate Matter Sensor Circuit | 18 | Powertrain |
| P24AF | Particulate Matter Sensor Circuit Range/Performance | 19 | Powertrain |
| P24B0 | Particulate matter sensor circuit low | 15 | Powertrain |
| P24B1 | Particulate Matter Sensor Circuit High | 17 | Powertrain |
| P24B3 | Particulate matter sensor heater control circuit/open | 16 | Powertrain |
| P24B4 | Particulate matter sensor heater control circuit range/performance | 13 | Powertrain |
| P24B5 | Particulate matter sensor heater control circuit low | 13 | Powertrain |
| P24B6 | Particulate Matter Sensor Heater Control Circuit High | 16 | Powertrain |
| P24B7 | Particulate Matter Sensor Heater Resistance | 15 | Powertrain |
| P24B9 | EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance | 14 | Powertrain |
| P24BA | EVAP System Leak Detection Pump Pressure Sensor Circuit Low | 14 | Powertrain |
| P24BB | EVAP System Leak Detection Pump Pressure Sensor Circuit High | 14 | Powertrain |
| P24C2 | Exhaust gas temperature measurement system - multiple sensor correlation bank 1 | 14 | Powertrain |
| P24C4 | EGR cooler bypass position sensor exceeded learning limit bank 1 | 10 | Powertrain |
| P24C6 | Particulate Matter Sensor Temperature Circuit | 17 | Powertrain |
| P24C7 | Particulate Matter Sensor Temperature Circuit Range/performance | 17 | Powertrain |
| P24C8 | Particulate matter sensor temperature circuit low | 12 | Powertrain |
| P24C9 | Particulate matter sensor temperature circuit high | 12 | Powertrain |
| P24D0 | Particulate matter sensor supply voltage circuit low | 15 | Powertrain |
| P24D1 | Particulate matter sensor regeneration incomplete | 15 | Powertrain |
| P24D6 | EVAP System Pressure Sensor/Switch B Circuit Range/Performance | 19 | Powertrain |
| P24D7 | EVAP System Pressure Sensor/Switch B Circuit Low | 16 | Powertrain |
| P24D8 | EVAP System Pressure Sensor/Switch B Circuit High | 16 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.