Reading as a series of five letters and numbers, the DTC allows you to home in on the system that is not functioning properly. The diagnostic trouble code is the code your OBD generates to tell you something is wrong.If your vehicle has this system, you need an OBD-II diagnostic scanner to communicate with its OBD system. Since 1996, vehicles have an OBD-II diagnostic system. The OBD may alert you to problems with your vehicle’s engine, airbags, antilock brakes and other components. The on-board computer diagnostic system is the integrated tool that monitors many of your vehicle’s essential systems.Of course, if your vehicle’s computer produces one, you need to know what your trouble code means.īefore exploring what each code means and how to fix it, you should understand two important concepts.
Modern vehicles have internal computers that not only control the overall performance of your car, truck or SUV, but they also alert you to a problem by generating trouble codes.
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