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How do you get diagnostic codes using ignition key on 1997 grand prix?
Wiki User
∙ 18y ago
In 1996 all cars sold in the U.S. had to be made with what they call OBD2 (Onboard Diagnostics 2). This system cannot be checked by using the key, it can only be checked with an OBD2 scanner. Some auto partsstores like AutoZone and O'reill's will run these tests for free. sgi
Wiki User
∙ 18y ago
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