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.
- P2662Generic · PowertrainB Rocker Arm Actuator System Stuck On Bank 2
- P2663Generic · PowertrainB Rocker Arm Actuator Control Circuit Low Bank 2
- P2664Generic · PowertrainB Rocker Arm Actuator Control Circuit High Bank 2
- P2665Generic · PowertrainFuel Shutoff Valve B Control Circuit/Open
- P2666Generic · PowertrainFuel Shutoff Valve B Control Circuit Low
- P2667Generic · PowertrainFuel Shutoff Valve B Control Circuit High
- P2668Generic · PowertrainFuel Mode Indicator Lamp Control Circuit
- P2669Generic · PowertrainActuator Supply Voltage B Circuit /Open
- P266AGeneric · PowertrainA Rocker Arm Actuator Position Sensor Circuit Bank 2
- P266BGeneric · PowertrainA Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
- P266CGeneric · PowertrainA Rocker Arm Actuator Position Sensor Circuit Low Bank 2
- P266DGeneric · PowertrainA Rocker Arm Actuator Position Sensor Circuit High Bank 2
- P266EGeneric · PowertrainA Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 2
- P266FGeneric · PowertrainA/C Refrigerant Distribution Valve A Control Circuit Driver Current/Temperature Too High
- P2670Generic · PowertrainActuator Supply Voltage B Circuit Low
- P2671Generic · PowertrainActuator Supply Voltage B Circuit High
- P2672Generic · PowertrainInjection Pump Timing Offset
- P2673Generic · PowertrainInjection Pump Timing Calibration Not Learned
- P2674Generic · PowertrainInjection Pump Fuel Calibration Not Learned
- P2675Generic · PowertrainAir Cleaner Inlet Control Circuit/Open
- P2676Generic · PowertrainAir Cleaner Inlet Control Circuit Low
- P2677Generic · PowertrainAir Cleaner Inlet Control Circuit High
- P2678Generic · PowertrainCoolant Degassing Valve Control Circuit/Open
- P2679Generic · PowertrainCoolant Degassing Valve Control Circuit Low
- P267AGeneric · PowertrainB Rocker Arm Actuator Position Sensor Circuit Bank 2
- P267BGeneric · PowertrainB Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
- P267CGeneric · PowertrainB Rocker Arm Actuator Position Sensor Circuit Low Bank 2
- P267DGeneric · PowertrainB Rocker Arm Actuator Position Sensor Circuit High Bank 2
- P267EGeneric · PowertrainB Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 2
- P267FGeneric · PowertrainControl Module Internal Temperature Sensor A Circuit Intermittent/Erratic