A car repair resource site that helps you diagnose vehicle OBD, OBD-II, and OBD2 problems. We have many articles on how to diagnose and repair many check engine light codes.

OBD-II (Check Engine Light) Trouble Codes Welcome to OBD-Codes.com, your headquarters for everything OBD-II related. For more information on what OBD codes are, OBD-II codes explained, …

Get definitions and auto repair information for thousands of OBD-II codes. Look up B, C, U and P codes to diagnose your car problem.

FAQ: OBD2 Codes Explained OBD-II codes consist of a number of parts. Here is a sample OBD2 code: P0171 Here is a breakdown of what each digit of the code means: First Character - System The first …

How to read the codes 1. Ground terminals A and B (see diagram below) with the ignition "ON" and engine not running. The system will enter the diagnostic mode. In this mode, the computer will …

5 days ago · Last post Similar OBD codes from differ… by omycar Mon May 13, 2024 8:49 pm General Car Repair Forum Please use the manufacturer specific forums above this where appropriate 1118 …

Search OBD-Codes.com We have literally hundreds of trouble code articles and thousands of discussions in the forums. This search here is the best way to search all of our content to get the …

P01xx OBD-II Trouble Codes search forums P00xx P01xx P02xx P03xx P04xx P05xx P06xx P07xx P08xx P09xx P0Axx P0Bxx P0Cxx P1*** P20xx P21xx P22xx P23xx P24xx P25xx P26xx P27xx …

Information on diagnosing and repairing a DTC trouble code P0401 which is insufficient EGR (exhaust gas recirculation) flow.

Information on diagnosing and repairing a vehicle DTC trouble code P0446 which is EVAP emission control system incorrect purge flow.