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Took my 2007 Mazda 3 to get the state inspection, but didn't pass because of the On board computer couldn't communicate with the on board diagnostic test.

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This is covered by warranty take it to the dealer, warranty on emission system is 7 years or 70,000 miles

Posted on Nov 03, 2008

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I've attached a picture of the connector and where you should see 12 volts. Get a test light and check this pin, if you have no power between this pin and ground, you either have a blown fuse or a wiring problem5243d31.jpg

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