DTC codes
Look up an OBD-II fault code: what it means on every car or on your make, and how to track it down.
How to read a code
- P
- SystemPowertrain
- 0
- Defined bySAE, the same on every car
- 4
- AreaAuxiliary emission controls
- 20
- FaultThe specific fault in that area
Read the code
Note every stored and pending code your scanner shows, such as P0420.
Find it
Search by code or by words. For a manufacturer code (P1, B1, C1, U1) pick your make: its meaning differs by make.
Open the code
Its page explains the symptoms, likely causes, the checks to run and the fixes.
- P2C47Generic · PowertrainBattery Isolation/Voltage Stabilization Control Circuit Intermittent
- P2C48Generic · PowertrainCoolant Pump C Control Circuit Performance/Stuck Off
- P2C49Generic · PowertrainCoolant Pump D Control Circuit Performance/Stuck Off
- P2C4AGeneric · PowertrainClutch Actuator Position Sensor Circuit
- P2C4BGeneric · PowertrainClutch Actuator Position Sensor Circuit Range/Performance
- P2C4CGeneric · PowertrainClutch Actuator Position Sensor Circuit Low
- P2C4DGeneric · PowertrainClutch Actuator Position Sensor Circuit High
- P2C4EGeneric · PowertrainClutch Actuator Position Sensor Circuit Intermittent/Erratic
- P2C4FGeneric · PowertrainClutch Actuator Performance
- P2C50Generic · PowertrainClutch Pedal Position Sensor A/Clutch Actuator Position Sensor Correlation
- P2C51Generic · PowertrainFuel Level Sensor A/B Correlation
- P2C52Generic · PowertrainCylinder 1 Fuel Injector B Offset Learning At Min Limit
- P2C53Generic · PowertrainCylinder 1 Fuel Injector B Offset Learning At Max Limit
- P2C54Generic · PowertrainCylinder 2 Fuel Injector B Offset Learning At Min Limit
- P2C55Generic · PowertrainCylinder 2 Fuel Injector B Offset Learning At Max Limit
- P2C56Generic · PowertrainCylinder 3 Fuel Injector B Offset Learning At Min Limit
- P2C57Generic · PowertrainCylinder 3 Fuel Injector B Offset Learning At Max Limit
- P2C58Generic · PowertrainCylinder 4 Fuel Injector B Offset Learning At Min Limit
- P2C59Generic · PowertrainCylinder 4 Fuel Injector B Offset Learning At Max Limit
- P2C5AGeneric · PowertrainCylinder 5 Fuel Injector B Offset Learning At Min Limit
- P2C5BGeneric · PowertrainCylinder 5 Fuel Injector B Offset Learning At Max Limit
- P2C5CGeneric · PowertrainCylinder 6 Fuel Injector B Offset Learning At Min Limit
- P2C5DGeneric · PowertrainCylinder 6 Fuel Injector B Offset Learning At Max Limit
- P2C5EGeneric · PowertrainCylinder 7 Fuel Injector B Offset Learning At Min Limit
- P2C5FGeneric · PowertrainCylinder 7 Fuel Injector B Offset Learning At Max Limit
- P2C60Generic · PowertrainCylinder 8 Fuel Injector B Offset Learning At Min Limit
- P2C61Generic · PowertrainCylinder 8 Fuel Injector B Offset Learning At Max Limit
- P2C62Generic · PowertrainO2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 3
- P2C63Generic · PowertrainO2 Sensor Pumping Current Trim Circuit Low Bank 1 Sensor 3
- P2C64Generic · PowertrainO2 Sensor Pumping Current Trim Circuit High Bank 1 Sensor 3