SOURCE: can't read codes with code reader
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.
SOURCE: how can I read the 2002 ford f150 obd codes. My
Chryslers can be read this way but not Ford. You need a code reader. But be aware that the code does not tell you the problem. It only suggest a symptom like open or short or out of parameters. If you dont know how to test components you wont know if you only have a loose wire or something
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