Installing Aux Reverse Lights - Does Truck Think a Trailer is Connected?
Senior Member
Joined: Nov 2016
Posts: 140
Likes: 20
weird... I have a tester as well... I'll try that tonight and post what I end up seeing.
5 Year Member
Joined: Sep 2016
Posts: 433
Likes: 241
If you wired your backup lights relay to the +12 in the trailer connector and they work when you back up, then it is obvious your +12 is always enabled, unlike mine and many others here.
Thread Starter
Junior Member
Joined: Mar 2017
Posts: 14
Likes: 0
Just wanted to provide an update: wired up the aux reverse light this weekend using the wire of the center pin of the 7-pin trailer connector and the ground wire to run the lights, truck doesn't think there's a trailer connected so all is working well.
