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OBD2 fault codes

Search 4,902 OBD2 trouble codes. Type a code like P0420, or a word like “oxygen” or “misfire”.

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P codes – Powertrain

P codes cover the engine, transmission and emissions. 2274 codes.

B codes – Body

B codes cover the airbags, seats, lights, doors and comfort systems. 1298 codes.

C codes – Chassis

C codes cover the ABS, traction control, steering and suspension. 566 codes.

U codes – Network

U codes cover the communication between the car's computer modules. 764 codes.

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