Question about 2004 Ford F150

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Can't read codes with code reader

The check engine light came on, it is a 2004 f150 heritage. I got a code reader and plugged it in and there is no display on the code reader. I take the same code reader and plug it into another f150 and a toyota and the code reader works. Do I have a electrical problem with my obd interface?

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  • mlewis165 Apr 24, 2009

    I checked the voltage at the obd connector and it is 12V so it is not a blown fuse. I tried another error code reader and I was able to get the code. I have a P0174 error which is "too lean bank 2" so now I can try to narrow it down. Thanks for your reply.

  • Anonymous Mar 27, 2014

    code reader will not link to my truck

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You most likley have a blown fuse. the fuse for the connector and cig lighter are usually on the same circuit . if you have a owner manuel check and see which fuse is for the obd/cig lighter. if you dont have a manuel then check every fuse in the box and see if you find a blown one. the plug whare the scanner connects is what powers the scanner so if you cant find a blown fuse then you know youre not getting power to the plug for some reason.

Posted on Apr 24, 2009

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