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2004 Ford Taurus Question: No reading from the OBD-2



bean01, 3.0L V6, Ukiah, CA, January 18, 2011, 19:42

The OBD-2 has detected a malfunction, but the scan tool can't get a reading. What may cause this?

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  • Answer #1

    January 18, 2011, 19:45

    I assume your light is on.
    if there is no power to the scan tool, there is a fuse that provides power to the obdII connector. it is usually the cigar lighter fuse.
    if it does have power and cannot communicate then there is a module that is pulling the system to ground and must be diaged by a shop.


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    bean01, January 21, 2011, 00:51

    Thanks Roy. As you said the fuse to the cigar lighter was out and after replacing it, I was able to get a reading.

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