Wiring Connections for Trailer Wiring Harness on a 2016 Audi Q5s
Updated 03/22/2016 | Published 03/20/2016
Question:
I installed kit 119250 on my 2016 audi q5s but it I have no turn signals when the tail lights are on an using the left signal blinks both tail lights when the tail/headlights are off. Was this kit upgraded for 2016? Please provide updated instructions.
asked by: Kevin K
Expert Reply:
Trailer wiring harness # 119250KIT doesn't have vehicle specific installation instructions so you have to test the vehicle wiring using the included circuit tester to make sure you are connecting its wires to the proper vehicle wire.
Since your 2016 Audi Q5s has a multiplex wiring system it can take some trial and error to test and find the right wires, but it does not require splicing to attach.
On your vehicle the brake lights and tail lights operate on the same wire. So you would ground the white wire, yellow connects to the left turn signal only wire, green to the right turn signal only wire, and red to the combined brake/tail light wire. The brown wire is not used and should be grounded with the white wire. Make sure the ground location is bare metal; no paint or coating.
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