OBD 2 is short for the second version of OnboardDiagnostic. When a car’s diagnostic system detects a problem, it will create anerror code, which will trigger the Check Engine light comes on the dashboard.You can read these error codes with a scan tool that connects to a car’sdiagnostic connector which usually located beneath the dashboard. But an OBD 2scan tool cannot be used on every car. It is not reverse compatible; it willnot operate on cars which mist sprayer produced before 1996.
A diagnostic scanner, no matterthe coding system, will only give you the reported error code, not the meaningof the code. The following is the processes.Step1: Search for the leg space of your car;you are looking for a diagnostic connector. This plug receptor is the entrypoint into your car’s OBD diagnostic system. It should be in plain sight,somewhere near the steering. This connector takes a 16 pin plug, so it is much biggerthan a computer’s USB port, its shape is like a trapezium.Step2: Insert the diagnostic scan tool’s16-pin plug into the diagnostic connector. It should fit easily, and you noneed to force it.Step3: Power the OBD 2 scan tool on andwait for it to boot up completely, which shouldn’t take long.
Turn your car’skey into the ignition and power the car on. Wait several seconds as the scantool establishes a working connection with the car’s computer. Once it does, adiagnostic code should appear on the scanner screenStep4: Write down the codes from the OBD 2scanner, look up the scanner service manual, or just enter the reported errorcode into a search engine. You may also want to add the manufacturer’s name. Suchas, searching “Bens P1089” will land you on a code list with the translation,”O2 Sensor Circuit Slow Response in Lean Control Range.”Choose keywords from the code’s definition,and then insert these into the search engine to find a greater translation ofyour car’s problem. This will help you make the determination on whether or notyou want to try the repair job yourself. If you determine to ask for amechanic, you will also have the ability to tell him what exactly problem is.
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