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      06-01-2021, 01:23 PM   #1026
Nemanja2011
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Drives: 2015 X5, 2011 135i
Join Date: May 2021
Location: Indiana

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Quote:
Originally Posted by scotty339 View Post
Since you dont have the OEM BMW harness, you won't have the 4 pin trailer brake controller hookup. Your Tenkosha wiring harness is installed a very different way than the OEM harness.

The CANBUS 2 pin connector is what is hidden in the wiring loom that you have to dig for, IF installing the OEM harness.

Looking at this picture of the OEM Harness -
https://c1552172.ssl.cf0.rackcdn.com/710004_x800.webp

You can see at 4:30 (lower right corner) the 4 pin hookup for the trailer brake controller.

You'll have to tap some wires for your trailer brake controller. In regards to the electrical, I am unsure.




Good luck!




Thanks so much! This helps a lot. I'll look into it and I'll let you know of my success. If anyone else has ideas, please let me know.
Cheers,
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