Which Wire Has Brake Light Circuit for Brake Controller Install in a 2015/2014 Mercedes Sprinter

Updated 05/31/2017 | Published 05/30/2017

Question:

got a sprinter in my shgop with no factory tow package so im hard wiring it and cant find the cold side of the brake switch??

asked by: Trucksmart

Expert Reply:

We installed a brake controller in a 2014 Mercedes Sprinter just like your (see video link below), and we found that the correct wire was behind the brake pedal and was a pink wire with a green stripe. Fast forward to the 17:43 mark of the video and you'll see our installer testing and finding it.

The kit used to install the controller is the part # ETBC7 and the brake controller is the P3 part # 90195.

expert reply by: Jameson C