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.
- P0001Generic · PowertrainFuel Volume Regulator A Control Circuit/Open
- P0002Generic · PowertrainFuel Volume Regulator A Control Circuit Performance
- P0003Generic · PowertrainFuel Volume Regulator A Control Circuit Low
- P0004Generic · PowertrainFuel Volume Regulator A Control Circuit High
- P0005Generic · PowertrainFuel Shutoff Valve A Control Circuit/Open
- P0006Generic · PowertrainFuel Shutoff Valve A Control Circuit Low
- P0007Generic · PowertrainFuel Shutoff Valve A Control Circuit High
- P0008Generic · PowertrainEngine Position System Performance Bank 1
- P0009Generic · PowertrainEngine Position System Performance Bank 2
- P000AGeneric · PowertrainA Camshaft Position Slow Response Bank 1
- P000BGeneric · PowertrainB Camshaft Position Slow Response Bank 1
- P000CGeneric · PowertrainA Camshaft Position Slow Response Bank 2
- P000DGeneric · PowertrainB Camshaft Position Slow Response Bank 2
- P000EGeneric · PowertrainFuel Volume Regulator Control Exceeded Learning Limit
- P000FGeneric · PowertrainFuel System Over Pressure Relief Valve Activated
- P0010Generic · PowertrainA Camshaft Position Actuator A Control Circuit/Open Bank 1
- P0011Generic · PowertrainA Camshaft Position - Timing Over-Advanced or System Performance Bank 1
- P0012Generic · PowertrainA Camshaft Position - Timing Over-Retarded Bank 1
- P0013Generic · PowertrainB Camshaft Position Actuator A Control Circuit/Open Bank 1
- P0014Generic · PowertrainB Camshaft Position - Timing Over-Advanced or System Performance Bank 1
- P0015Generic · PowertrainB Camshaft Position - Timing Over-Retarded Bank 1
- P0016Generic · PowertrainCrankshaft Position - Camshaft Position Correlation Bank 1 Sensor A
- P0017Generic · PowertrainCrankshaft Position - Camshaft Position Correlation Bank 1 Sensor B
- P0018Generic · PowertrainCrankshaft Position - Camshaft Position Correlation Bank 2 Sensor A
- P0019Generic · PowertrainCrankshaft Position - Camshaft Position Correlation Bank 2 Sensor B
- P001AGeneric · PowertrainA Camshaft Profile Actuator A Control Circuit/Open Bank 1
- P001BGeneric · PowertrainA Camshaft Profile Actuator A Control Circuit Low Bank 1
- P001CGeneric · PowertrainA Camshaft Profile Actuator A Control Circuit High Bank 1
- P001DGeneric · PowertrainA Camshaft Profile Actuator A Control Circuit/Open Bank 2
- P001EGeneric · PowertrainA Camshaft Profile Actuator A Control Circuit Low Bank 2