System check fail

1995 BUICK RIVIERA
136,432 MILES • TURBO • AUTOMATIC
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CHUCK TAYLOR2
  • MEMBER
  • 1 POST
My car does not recognize any code reader. I cannot perform any type of diagnostic.
Jan 27, 2017 at 6:52 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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CARADIODOC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 34,308 POSTS
Use a paper clip to connect terminals "A" and "B" together. Turn on the ignition switch, then count the flashes of the Check Engine light. Those two terminals will be the only two right next to each other in one corner of the diagnostic connector.

Here is a link to the page that tells how to read the codes, and what they mean:

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method
Jan 27, 2017 at 6:57 PM
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