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.
- P1280Plymouth · PowertrainOpen Or Shorted Condition Detected In The Fuel System Relay Control Circuit
- P1280Pontiac · PowertrainOpen Or Shorted Condition Detected In The Fuel System Relay Control Circuit
- P1280Saturn · PowertrainAccelerator Pedal Position APP Sensor 2 Circuit
- P1280Volkswagen · PowertrainFuel Injection Air Control Valve Circuit Flow Too Low
- P1281Buick · PowertrainAccelerator Pedal Position (APP) Sensor 2 Performance
- P1281Cadillac · PowertrainAccelerator Pedal Position (APP) Sensor 2 Performance
- P1281Chevrolet · PowertrainAccelerator Pedal Position (APP) Sensor 2 Performance
- P1281Chrysler · PowertrainAccelerator Pedal Position (APP) Sensor 2 Performance
- P1281Dodge · PowertrainEngine Operating Temp Below Acceptable Range
- P1281Ford · PowertrainInjection Control Pressure Out Of Range High
- P1281GM · PowertrainAccelerator Pedal Position (APP) Sensor 2 Performance
- P1281GMC · PowertrainAccelerator Pedal Position (APP) Sensor 2 Performance
- P1281Jeep · PowertrainEngine Operating Temp Below Acceptable Range
- P1281Lincoln · PowertrainInjection Control Pressure Out Of Range High
- P1281Mercury · PowertrainInjection Control Pressure Out Of Range High
- P1281Oldsmobile · PowertrainAccelerator Pedal Position APP Sensor 2 Performance
- P1281Other · PowertrainInjection Control Pressure Out Of Range High
- P1281Plymouth · PowertrainEngine Operating Temp Below Acceptable Range
- P1281Pontiac · PowertrainEngine Operating Temp Below Acceptable Range
- P1281Saturn · PowertrainAccelerator Pedal Position APP Sensor 2 Performance
- P1282Buick · PowertrainAccelerator Pedal Position Sensor 2 Circuit Low Voltage
- P1282Cadillac · PowertrainAccelerator Pedal Position Sensor 2 Circuit Low Voltage
- P1282Chevrolet · PowertrainAccelerator Pedal Position Sensor 2 Circuit Low Voltage
- P1282Chrysler · PowertrainAccelerator Pedal Position Sensor 2 Circuit Low Voltage
- P1282Dodge · PowertrainFuel Pump Relay Control Circuit Open Or Shorted
- P1282Ford · PowertrainExcessive Injection Control Pressure
- P1282GM · PowertrainAccelerator Pedal Position Sensor 2 Circuit Low Voltage
- P1282GMC · PowertrainAccelerator Pedal Position Sensor 2 Circuit Low Voltage
- P1282Jeep · PowertrainFuel Pump Relay Control Circuit Open Or Shorted
- P1282Lincoln · PowertrainExcessive Injection Control Pressure