Question about 1999 Pontiac Grand Prix
When the light is on, the computer has detected a problem that you need to know about. You'll need to use an OBD2 code scanner for your vehicle. The scanner will tell you what the computer has detected.
You can borrow, rent or buy a code scanner from most automotive auto parts retailers... some will even help you use the scanner and interpret the results.
Posted on Mar 20, 2011
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Posted on Jan 02, 2017
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