Under the dash is a large rectangular plug. What you have to do is turn the key to the off position. Using a paper clip or wire, jump pin A and pin B. Once the jumper is between the A and B terminal on the data link connector (DCL), turn the key to the run position / engine off. The check engine light will begin to flash.
The flashes from the check engine light are codes. The codes are 2 digit numbers. For example, if the light flashes 3 times, there is a slight pause, then 7 more times, that is a code 37. There will always be a brief pause between the two digit code. There is a slightly longer pause when it changes to the next code.
If you could try this, it would help me provide better info.
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Saturday, January 3rd, 2015 AT 7:11 PM