How you can Extract the Diagnostic Codes From 1998 3.four GM Cars 1Turn off the vehicle's ignition and electrical program.2Insert the OBD-II scanner in to the GM's diagnostic jack. diagnostics car tool
The location could slightly vary by model of GM car. It can be commonly positioned beneath the dashboard and steering wheel.3Turn on the scanner. When you appear at the screen car diagnostic software, you'll not see a diagnostic code.
4Place the GM's keys into the ignition and turn on the automobile.5Watch the scanner's screen. It should really take no more than some seconds for the diagnostic code to appear.
6Write down the code on a slip of paper. Turn off the vehicle and then turn off the scanner.7Consult your scanner's user's manual exactly where you should discover the generic Society of Automotive Engineers codes. Nevertheless, some codes might be specific to the car manufacturer, which might not be in the scanner's manual.
For all those codes, seek the advice of one of the quite a few OBD-dedicated web sites on the internet, like obd-codes.com.8Read the code definition to establish if can repair the automobile. If not, take the auto to an expert mechanic to repair the issue.
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