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.
- P28CCGeneric · PowertrainClutch A Motor Position Sensor Circuit Range/Performance
- P28CDGeneric · PowertrainClutch A Pressure Sensor Circuit/Open
- P28CEGeneric · PowertrainClutch A Pressure Sensor Circuit Low
- P28CFGeneric · PowertrainClutch A Pressure Sensor Circuit High
- P28D0Generic · PowertrainClutch A Pressure Sensor Circuit Range/Performance
- P28D1Generic · PowertrainClutch A Motor Driver Current/Temperature Too High
- P28D2Generic · PowertrainClutch B Motor Phase U-V-W Circuit Low
- P28D3Generic · PowertrainClutch B Motor Phase U-V-W Circuit High
- P28D4Generic · PowertrainClutch B Motor Phase U-V-W Circuit/Open
- P28D5Generic · PowertrainClutch B Motor Phase U-V-W Performance
- P28D6Generic · PowertrainClutch B Motor Driver Current/Temperature Too High
- P28D7Generic · PowertrainClutch B Pump Motor Performance
- P28D8Generic · PowertrainClutch B Motor Overspeed
- P28D9Generic · PowertrainClutch B Motor Underspeed
- P28DAGeneric · PowertrainClutch B Motor Position Sensor Circuit/Open
- P28DBGeneric · PowertrainClutch B Motor Position Sensor Circuit Range/Performance
- P28DCGeneric · PowertrainClutch B Pressure Sensor Circuit/Open
- P28DDGeneric · PowertrainClutch B Pressure Sensor Circuit Low
- P28DEGeneric · PowertrainClutch B Pressure Sensor Circuit High
- P28DFGeneric · PowertrainClutch B Pressure Sensor Circuit Range/Performance
- P28E0Generic · PowertrainShift Motor Phase U-V-W Circuit Low
- P28E1Generic · PowertrainShift Motor Phase U-V-W Circuit High
- P28E2Generic · PowertrainShift Motor Phase U-V-W Circuit/Open
- P28E3Generic · PowertrainShift Motor Phase U-V-W Performance
- P28E4Generic · PowertrainShift Motor Driver Current/Temperature Too High
- P28E5Generic · PowertrainShift Motor Performance
- P28E6Generic · PowertrainShift Motor Overspeed
- P28E7Generic · PowertrainShift Motor Position Sensor Circuit/Open
- P28E8Generic · PowertrainShift Motor Position Sensor Circuit High
- P28E9Generic · PowertrainShift Motor Position Sensor Circuit Low