Check-engine codes
What does my check-engine code mean?
Plain-English explanations for OBD-II trouble codes: what the code means, the most likely causes, symptoms, and how much labour a repair usually takes.
P2 codes · Powertrain (generic, extended)
- P22BCO2 Sensor Reference Voltage Performance (Bank 2 Sensor 2)
- P22BDO2 Sensor Reference Voltage Circuit Low (Bank 2 Sensor 2)
- P22BEO2 Sensor Reference Voltage Circuit High (Bank 2 Sensor 2)
- P22BFO2 Sensor Negative Current Control Circuit/Open (Bank 2 Sensor 2)
- P22C0O2 Sensor Negative Current Control Circuit Low (Bank 2 Sensor 2)
- P22C1O2 Sensor Negative Current Control Circuit High (Bank 2 Sensor 2)
- P22C2O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 2)
- P22C3O2 Sensor Pumping Current Trim Circuit Low (Bank 2 Sensor 2)
- P22C4O2 Sensor Pumping Current Trim Circuit High (Bank 2 Sensor 2)
- P22C5Turbocharger Compressor Outlet Valve Control Circuit/Open
- P22C6Turbocharger Compressor Outlet Valve Control Circuit Low
- P22C7Turbocharger Compressor Outlet Valve Control Circuit High
- P22C8Turbocharger Compressor Outlet Valve Stuck Open
- P22C9Turbocharger Compressor Outlet Valve Stuck Closed
- P22CATurbocharger Compressor Outlet Switching Valve Control Circuit/Open
- P22CBTurbocharger Compressor Outlet Switching Valve Control Circuit Low
- P22CCTurbocharger Compressor Outlet Switching Valve Control Circuit High
- P22CDTurbocharger Compressor Outlet Switching Valve Stuck Open
- P22CETurbocharger Compressor Outlet Switching Valve Stuck Closed
- P22CFTurbocharger Turbine Inlet Valve Control Circuit/Open
- P22D0Turbocharger Turbine Inlet Valve Control Circuit Low
- P22D1Turbocharger Turbine Inlet Valve Control Circuit High
- P22D2Turbocharger Turbine Inlet Valve Stuck Open
- P22D3Turbocharger Turbine Inlet Valve Stuck Closed
- P22D4Turbocharger Turbine Inlet Valve Position Sensor Circuit
- P22D5Turbocharger Turbine Inlet Valve Position Sensor Circuit Range/Performance
- P22D6Turbocharger Turbine Inlet Valve Position Sensor Circuit Low
- P22D7Turbocharger Turbine Inlet Valve Position Sensor Circuit High
- P22D8Turbocharger Turbine Inlet Valve Position Sensor Circuit Intermittent/Erratic
- P22D9Cylinder 1 Alternative Fuel Injector Control Circuit/Open
- P22DACylinder 1 Alternative Fuel Injector Control Circuit Low
- P22DBCylinder 1 Alternative Fuel Injector Control Circuit High
- P22DCCylinder 1 Alternative Fuel Injector Control Circuit Range/Performance
- P22DDCylinder 2 Alternative Fuel Injector Control Circuit/Open
- P22DECylinder 2 Alternative Fuel Injector Control Circuit Low
- P22DFCylinder 2 Alternative Fuel Injector Control Circuit High
- P22E0Cylinder 2 Alternative Fuel Injector Control Circuit Range/Performance
- P22E1Cylinder 3 Alternative Fuel Injector Control Circuit/Open
- P22E2Cylinder 3 Alternative Fuel Injector Control Circuit Low
- P22E3Cylinder 3 Alternative Fuel Injector Control Circuit High
- P22E4Cylinder 3 Alternative Fuel Injector Control Circuit Range/Performance
- P22E5Cylinder 4 Alternative Fuel Injector Control Circuit/Open
- P22E6Cylinder 4 Alternative Fuel Injector Control Circuit Low
- P22E7Cylinder 4 Alternative Fuel Injector Control Circuit High
- P22E8Cylinder 4 Alternative Fuel Injector Control Circuit Range/Performance
- P22E9Cylinder 5 Alternative Fuel Injector Control Circuit/Open
- P22EACylinder 5 Alternative Fuel Injector Control Circuit Low
- P22EBCylinder 5 Alternative Fuel Injector Control Circuit High
- P22ECCylinder 5 Alternative Fuel Injector Control Circuit Range/Performance
- P22EDCylinder 6 Alternative Fuel Injector Control Circuit/Open
- P22EECylinder 6 Alternative Fuel Injector Control Circuit Low
- P22EFCylinder 6 Alternative Fuel Injector Control Circuit High
- P22F0Cylinder 6 Alternative Fuel Injector Control Circuit Range/Performance
- P22F1Particulate Matter Sensor Heater Performance
- P22F2Cylinder 7 Alternative Fuel Injector Control Circuit Low
- P22F3Cylinder 7 Alternative Fuel Injector Control Circuit High
- P22F4Cylinder 7 Alternative Fuel Injector Control Circuit Range/Performance
- P22F5Cylinder 8 Alternative Fuel Injector Control Circuit/Open
- P22F6Cylinder 8 Alternative Fuel Injector Control Circuit Low
- P22F7Cylinder 8 Alternative Fuel Injector Control Circuit High
- P22F8Cylinder 8 Alternative Fuel Injector Control Circuit Range/Performance
- P22F9NOx Sensor Performance - Slow Response Low to High (Bank 1 Sensor 1)
- P22FANOx Sensor Performance - Slow Response High to Low (Bank 1 Sensor 1)
- P22FBNOx Sensor Performance - Sensing Element (Bank 1 Sensor 1)
- P22FCNOx Sensor Performance - Slow Response Low to High (Bank 1 Sensor 2)
- P22FDNOx Sensor Performance Slow Response High to Low Bank 1 Sensor 2
- P22FENOx Sensor Sensing Element Bank 1 Sensor 2
- P22FFSCR NOx Catalyst Inlet Temperature Too Low
- P2300Ignition Coil A Primary Control Circuit Low
- P2301Ignition Coil A Primary Control Circuit High
- P2302Ignition Coil A Secondary Circuit
- P2303Ignition Coil B Primary Control Circuit Low
- P2304Ignition Coil B Primary Control Circuit High
- P2305Ignition Coil B Secondary Circuit
- P2306Ignition Coil C Primary Control Circuit Low
- P2307Ignition Coil C Primary Control Circuit High
- P2308Ignition Coil C Secondary Circuit
- P2309Ignition Coil D Primary Control Circuit Low
- P230ACylinder 1 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P230BCylinder 2 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P230CCylinder 3 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P230DCylinder 4 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P230ECylinder 5 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P230FCylinder 6 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P2310Ignition Coil D Primary Control Circuit High
- P2311Ignition Coil D Secondary Circuit
- P2312Ignition Coil E Primary Control Circuit Low
- P2313Ignition Coil E Primary Control Circuit High
- P2314Ignition Coil E Secondary Circuit
- P2315Ignition Coil F Primary Control Circuit Low
- P2316Ignition Coil F Primary Control Circuit High
- P2317Ignition Coil F Secondary Circuit
- P2318Ignition Coil G Primary Control Circuit Low
- P2319Ignition Coil G Primary Control Circuit High
- P231ACylinder 7 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P231BCylinder 8 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P231CCylinder 9 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P231DCylinder 10 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P231ECylinder 11 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
- P231FCylinder 12 Air-Fuel Ratio Imbalance Adjustment At Limit During Balance
Code data: OBDex open dataset (CC0), reviewed and rewritten for drivers. Always confirm a diagnosis before replacing parts.