Chevy Third Brake Light Wire For Topper

I found a connector that comes off of the rear harness but i am unsure what it is for.

Chevy third brake light wire for topper.

Wiring truck cap 3rd brake light. Its what i do for a living. Those get wired into your chmsl wire. Me and my circuit tester decided that the installer connected it to the right connector just the wrong color wire.

If you cant find that just ask. Tapping into your trailer wiring or a tail light definitely isnt the right way to wire a 3rd brake light wire. Hi all i am trying to wire up my 3rd brake light on my are topper cap and i cannot seem to find the light blue wire that people are talking about tapping into for the brake only signal. I install toppers truck accessories crap all day.

Apr 06 2017 6 07pm. It doesn t connect to anything and it has a terminator plug on it. I need to wire the center overhead brake light on the topper topper already has the light and it is wired. In order to power the third brake light on a truck bed cap you will need the pacer performance 3rd brake light logic module part pp20 702 the reason you need the module is that the brake turn signal circuits and trailer lighting circuits are combined so you need to separate the brake turn signals or else the third brake light would blink when turning.

The truck has a signal control box or whatever mounted above the spare i assume theres a simple plug and harness that can tap into that controller and then the rest is easy. Wiring truck cap 3rd brake light. Another company wired the 3rd brakelight on this cap.