To interpret car diagnostic codes, use an online code interpreter, such as Actron's code lookup. The person conducting the search needs basic information about the car, such as its make, model and engine type. More » Vehicles Car Parts & Maintenance

Car diagnostic codes identify problems that onboard systems report during the operation of the car, according to Total Car Diagnostics. Sensors in the car note and record readings that vary from the accepted range, such ... More » Health Diagnostics & Imaging

Diagnostic tests are used to determine what repairs are required to ensure a vehicle operates properly. On newer model vehicles, an on-board diagnostics computer interface is used in conjunction with diagnostic tools and... More »

Actron makes automotive diagnostic scan tools, code readers, compression testers, fuel pressure testers and specialty tools. The company also manufactures timing lights and vacuum pressure gauges. Actron’s electrical tes... More » Vehicles Car Parts & Maintenance

Read a vehicle's on board diagnostic code, or ODC, by attaching a code reader to the port under the steering wheel and starting the car. Compare the reading to a code guide available in a repair manual or online. Some sc... More » Vehicles Car Parts & Maintenance

You can use the VIN number to get your car key code if you contact your dealership, according to In order to receive the code, you must have proof of registration and ownership, the car must be less ... More »

Car repair codes are used to determine what problems a car may be experiencing and how to go about repairing those issues. The codes are obtained when a mechanic performs a diagnostic test on the vehicle. More » Vehicles Car Parts & Maintenance