Obd 2 port

Discussion in 'General Chevy & GM Tech Questions' started by Joel.B, Jun 12, 2012.

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  1. Joel.B

    Joel.B New Member

    Hey Y'all!!!
    My OBD 2 Port has stopped working. I have had it plugged into the scan tools at autozone and advanced auto and both could not detect. Any ideas on what most likely is causing this? I spoke to a chevy dealer and they told me it could cost almost $900 just to troubleshoot. Please help!!! Thanks.
  2. RayVoy

    RayVoy Active Member 1000 Posts 100 Posts

    Joel, it's just a blown fuse.

    The OBD2 port shares (usually) a fuse with one (or more) of the 12v power ports (cig lighter).
  3. Crawdaddy

    Crawdaddy Moderator Staff Member Platinum Contributor 1000 Posts 100 Posts

    Yep... 9 times out of 10 it's just a blown fuse. No big deal. The fuse may be in the under hood or the cab fuse box, it depends on the year and model.
  4. ecomike

    ecomike New Member

    Having the same problem on a 2004, Chevrolet Silverado Z71 5.3L V8 4WD, anybody ever figure out which fuse it is, was, or know which one it is on this rig?
  5. ecomike

    ecomike New Member

    Update. Cigarette lighter fuse was bad, don;t know yet if a new one will fix the OBD-II port problem.

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