Trouble Codes, Autel, OBD Codes and Total Car Diagnostics Support offer comprehensive lists of vehicle repair codes. The diagnostic systems in modern cars store these codes in the on-board computer to signify that an error that has been identified by the car sensors.
Some sites also allow users to search their databases according to the make and model of the car, and the year of manufacture. Error codes were created by the Society of Automotive Engineers and consist of five digits.They are divided into four subcategories: powertrain codes, body codes, chassis codes and network communication codes. Also known as fault codes, error codes help car technicians identify the problem area within the car and are designed for use in conjunction with the vehicle service manual.