It will let you read and reset the codes. You can get a code reader from Amazon that works with 1996 and up vehicles for about $15. They will have a letter followed by four numbers, for example 'P1234'. You can have codes read at Auto Zone, Pep Boys, O'Reilly's, etc., for free in most states. Get OBD codes! If you have a Check Engine (CEL) or Service Engine (SEL) Soon light on, get the codes read and have them available if possible befoer posting.
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