Use this page to find your vehicle’s OBD-II code.
OBD-II codes are part of the self-diagnostic system that all cars come with. The OBD system uses Diagnostic Trouble Codes (DTC) to tell you which specific component has an issue. They’re five-digit codes and are made up of four different subsets of codes that indicate where in the vehicle the malfunction lies (for example, P1234).
The first number in the DTC tells you if the code is specific to the vehicle manufacturer or a generic code that applies to all OBD-II systems. The last three numbers tell you specific information on the vehicle system or circuit that is running into trouble. The first of these subsets is the powertrain, or P codes, and is the largest of the four categories. This is followed by network and integration (U), body (B), and chassis (C) codes.
The P codes deal with the powertrain system of the vehicle, which includes the engine, transmission, and any associated drivetrain accessories. P codes can be further broken down by where the numeric total after the P lies in the OBD-II code list:
The next couple of P code subsets have to deal with a vehicle’s computer systems:
For more information on further diagnosing your vehicle’s transmission issues, visit KBB.com’s transmission repair guide.
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