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.
- P1523Volkswagen · PowertrainCrash Signal From Airbag Control Unit Range Performance
- P1524BMW · PowertrainA Camshaft Position Actuator Signal High Bank 1
- P1524Buick · PowertrainTP Sensor Learned CI, Throttle Angle Out Of Range
- P1524Cadillac · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1524Chevrolet · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1524Chrysler · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1524GM · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1524GMC · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1524Oldsmobile · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1524Other · PowertrainVariable Intake Solenoid System
- P1524Saturn · PowertrainTP Sensor Learned CI Throttle Angle Out Of Range
- P1525BMW · PowertrainA Camshaft Position Actuator Control Open Circuit Bank 1
- P1525Buick · PowertrainThrottle Body Service Required
- P1525Cadillac · PowertrainThrottle Body Service Required
- P1525Chevrolet · PowertrainThrottle Body Service Required
- P1525Chrysler · PowertrainThrottle Body Service Required
- P1525GM · PowertrainThrottle Body Service Required
- P1525GMC · PowertrainThrottle Body Service Required
- P1525Oldsmobile · PowertrainThrottle Body Service Required
- P1525Other · PowertrainAir Bypass Valve System
- P1525Saturn · PowertrainThrottle Body Service Required
- P1525Volkswagen · PowertrainIntake Camshaft Control Circuit Bank 1 Electrical Malfunction
- P1526BMW · PowertrainA Camshaft Position Actuator Control Open Circuit Bank 2
- P1526Buick · PowertrainTP Sensor Learn Not Complete
- P1526Cadillac · PowertrainTP Sensor Learn Not Complete
- P1526Chevrolet · PowertrainTP Sensor Learn Not Complete
- P1526Chrysler · PowertrainTP Sensor Learn Not Complete
- P1526GM · PowertrainTP Sensor Learn Not Complete
- P1526GMC · PowertrainTP Sensor Learn Not Complete
- P1526Oldsmobile · PowertrainTP Sensor Learn Not Complete