Powertrain fault codes
14821 Powertrain OBD-II fault codes: what each one means, 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.
- P289FGeneric · PowertrainCylinder 4 Ion Current Sense Circuit High
- P28A0Generic · PowertrainCylinder 5 Ion Current Sense Circuit
- P28A1Generic · PowertrainCylinder 5 Ion Current Sense Circuit Range/Performance
- P28A2Generic · PowertrainCylinder 5 Ion Current Sense Circuit Low
- P28A3Generic · PowertrainCylinder 5 Ion Current Sense Circuit High
- P28A4Generic · PowertrainCylinder 6 Ion Current Sense Circuit
- P28A5Generic · PowertrainCylinder 6 Ion Current Sense Circuit Range/Performance
- P28A6Generic · PowertrainCylinder 6 Ion Current Sense Circuit Low
- P28A7Generic · PowertrainCylinder 6 Ion Current Sense Circuit High
- P28A8Generic · PowertrainCylinder 7 Ion Current Sense Circuit
- P28A9Generic · PowertrainCylinder 7 Ion Current Sense Circuit Range/Performance
- P28AAGeneric · PowertrainCylinder 7 Ion Current Sense Circuit Low
- P28ABGeneric · PowertrainCylinder 7 Ion Current Sense Circuit High
- P28ACGeneric · PowertrainCylinder 8 Ion Current Sense Circuit
- P28ADGeneric · PowertrainCylinder 8 Ion Current Sense Circuit Range/Performance
- P28AEGeneric · PowertrainCylinder 8 Ion Current Sense Circuit Low
- P28AFGeneric · PowertrainCylinder 8 Ion Current Sense Circuit High
- P28B0Generic · PowertrainCylinder 9 Ion Current Sense Circuit
- P28B1Generic · PowertrainCylinder 9 Ion Current Sense Circuit Range/Performance
- P28B2Generic · PowertrainCylinder 9 Ion Current Sense Circuit Low
- P28B3Generic · PowertrainCylinder 9 Ion Current Sense Circuit High
- P28B4Generic · PowertrainCylinder 10 Ion Current Sense Circuit
- P28B5Generic · PowertrainCylinder 10 Ion Current Sense Circuit Range/Performance
- P28B6Generic · PowertrainCylinder 10 Ion Current Sense Circuit Low
- P28B7Generic · PowertrainCylinder 10 Ion Current Sense Circuit High
- P28B8Generic · PowertrainCylinder 11 Ion Current Sense Circuit
- P28B9Generic · PowertrainCylinder 11 Ion Current Sense Circuit Range/Performance
- P28BAGeneric · PowertrainCylinder 11 Ion Current Sense Circuit Low
- P28BBGeneric · PowertrainCylinder 11 Ion Current Sense Circuit High
- P28BCGeneric · PowertrainCylinder 12 Ion Current Sense Circuit