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Answered 2007-11-11 04:48:31

You must reset the ECM, in order to do this you must get an OBD II compliant scan tool. Carefully follow all directions that come with the tool. Make sure to write down all codes that are retrieved when the tool completes its scan. However this will not guaranty that your car will pass, sometimes an old code will remain in the system and cause you to fail but if a code reoccurs you will need to repair the problem that caused the code to appear in the first place. in the case of a recurring code I recommend that if you aren't a wrench yourself that you find a mechanic, but don't let him know that you reset the car or that you have the tool. That way if he tries to get cute with you you'll know it and so save yourself a lot of wasted time and money. If you're worried about the cost of the tool consider this - an OBD II scanner works on all cars from 1996 to today on cars and trucks that were sold in the US. So it is a good investment.

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