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I know this is an old thread, but I figured better to revive this one than start a new discussion...
I installed the OEM hitch and wiring harness on my 2010 X5d yesterday. All of the trailer lights (which are LED) work just fine, including the blinkers. The brake lights, however, do not work. Have others who experienced this determined that coding is indeed the issue? I was under the impression that the coding would get me a few PDC and rear-view camera features, but not necessary for brake light operation.
Thanks
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