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.
- P05B8Generic · PowertrainRestraint Deployment Signal Circuit/Open
- P05B9Generic · PowertrainRestraint Deployment Signal Circuit Low
- P05BAGeneric · PowertrainRestraint Deployment Signal Circuit High
- P05BBGeneric · PowertrainRestraints Deployed
- P05BCGeneric · PowertrainStop-Start Mode Switch Circuit/Open
- P05BDGeneric · PowertrainStop-Start Mode Switch Circuit Range/Performance
- P05BEGeneric · PowertrainStop-Start Mode Switch Circuit Low
- P05BFGeneric · PowertrainStop-Start Mode Switch Circuit High
- P05C0Generic · PowertrainActive Grille Air Shutter Module A Over Temperature
- P05C1Generic · PowertrainActive Grille Air Shutter Module B Over Temperature
- P05C2Generic · PowertrainEngine Coolant Pressure Sensor Circuit
- P05C3Generic · PowertrainEngine Coolant Pressure Sensor Circuit Range/Performance
- P05C4Generic · PowertrainEngine Coolant Pressure Sensor Circuit Low
- P05C5Generic · PowertrainEngine Coolant Pressure Sensor Circuit High
- P05C6Generic · PowertrainEngine Coolant Pressure Sensor Circuit Intermittent/Erratic
- P05C7Generic · PowertrainEconomy Mode Switch Circuit/Open
- P05C8Generic · PowertrainEconomy Mode Switch Circuit Range/Performance
- P05C9Generic · PowertrainEconomy Mode Switch Circuit Low
- P05CAGeneric · PowertrainEconomy Mode Switch Circuit High
- P05CBGeneric · PowertrainVehicle Hardware Incompatibility
- P05CCGeneric · PowertrainCold Start A Camshaft Position Timing Performance Bank 1
- P05CDGeneric · PowertrainCold Start A Camshaft Position Timing Performance Bank 2
- P05CEGeneric · PowertrainCold Start B Camshaft Position Timing Performance Bank 1
- P05CFGeneric · PowertrainCold Start B Camshaft Position Timing Performance Bank 2
- P05D0Generic · PowertrainDriver Mode Select Switch A Circuit
- P05D1Generic · PowertrainDriver Mode Select Switch A Circuit Low
- P05D2Generic · PowertrainDriver Mode Select Switch A Circuit High
- P05D3Generic · PowertrainDriver Mode Select Switch A Range/Performance
- P05D4Generic · PowertrainDriver Mode Select Switch B Circuit
- P05D5Generic · PowertrainDriver Mode Select Switch B Circuit Low