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Where is the factory round diagnostic connecter? I have adapters for it.

(2003 BMW 745i)
in Chapin, SC on August 18, 2011
I am a technician trying to get factory diagnosis
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Popular Answer
on August 18, 2011
This right around the year the BMW went from the round-D connector under the hood to using the 16 pin OBD-II connector for everything, so I would look under the hood for the a black round plastic connector that has a round black cap threaded on the top of it. Use the BMW OEM round-D connector to access the OEM scan tool data.
There is no round plug on the E65/66. You need to use the OBD connector located in the left kick panel.A capable scanner should be able to access the needed modules from there.
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