OBD II diagnostic port not functioning

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09-19-2012, 06:14 AM

skylordd

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OBD II diagnostic port not functioning

Does or has anyone had an issue with the OBD II port not functioning ? I have connected 3 different readers to the port and get a "failure to connect" on the readers screen. I have a 2005 TT.

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09-19-2012, 07:33 AM

jakematic

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The port is fused and it might be blown.

Not sure where/which fuse it is, so you'll have to check the manual.
That's where I'd start....

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09-19-2012, 07:46 AM

skylordd

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Thanks. Its funny I called the dealer and talked to service rep and they said there wasnt a fuse for the OBD port.

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09-19-2012, 09:15 AM

jakematic

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Quote:

Originally Posted by skylordd

Thanks. Its funny I called the dealer and talked to service rep and they said there wasnt a fuse for the OBD port.

Well I could be wrong..... it's happened before

I'd still check the manual to see if there is a fuse for it.

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09-20-2012, 07:17 AM

tommyleea

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Is your cigarette lighter socket working? Not sure about the Audi, but some vehicles use this power for OBD port.

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09-24-2012, 12:13 AM

Theresias

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Aftermarket radio installed?

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09-25-2012, 07:59 AM

SilverSline

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Check all the fuses quickly with a test light. Its not uncommon to find a blown fuse for the OBD port. Sometimes this happens when a battery saver is used via the OBD port when work is being done on the car.

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OBD II diagnostic port not functioning

OBD II diagnostic port not functioning

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