OBD-II – Generic Powertrain Trouble Codes

This list contains standard diagnostic trouble codes (DTC’s) that are used by all manufacturers to identify OBD-II vehicle problems.


I hope you find something useful from our site, and remember to refer a friend!

Our goal is to provide you with the knowledge to know what is going on with your car when the OBD-II check engine light comes on.

This allows you not only to potentially diagnose a concern yourself, but also to make informed decisions when having your car serviced by a shop.

With the potential costs associated with diagnosing and repairing generic check engine light codes, as well as manufacturer specific codes, knowledge is power!

P0001-P0099 – Fuel & Air Metering – Auxiliary Emission Controls

P0100-P0199 – Fuel and Air Metering

P0200-P0299 – Fuel and Air Metering (Injector Circuit)

P0300-P0399 – Ignition System or Misfire

P0400-P0499 – Auxiliary Emissions Controls

P0500-P0599 – Vehicle Speed Controls and Idle Control System

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