Robin and Paul
Trailer Parts, Service, Sales and Rentals
2007 Jeep Wrangler Rubicon Trailer Brake Controller Install
(Other models may be the same)
"Standard" Wire colors to the controller (Tekonsha and others):
Black, Battery Positive to controller
White, Negative Ground for Controller
Blue, Brake feed from controller to Trailer plug at back of truck
Red, tap into truck Brake light switch signal to tell controller to apply brakes
Remember, the above colors are just a GUIDE. your colors may be different, read the instructions!
Robin and Paul
We found the brake light switch tap on the long connector attached to the steering column. It was the White wire with tan tracer. The picture shows looking up from the floorboard.
Get a test light and test all the pins on this plug, looking for the one that lights up when you press the brake pedal. The brake light switch is hard to reach, but with a probe tester, look for a wire under the dash that lights with the brake lights. Once we located that wire, I unplugged the connector to gain better access. Tap into the wire for the brake light feed (red wire on most controllers)
For power, we ran a wire through the firewall, and tapped onto battery under the hood.
We grounded the controller under the dash to a ground screw. Easy.
The blue (brake wire to plug) was simply passed through a hole in the firewall and ran along the frame to the back plug on the truck. (making sure to use lots of tie wraps to keep the wire away from hot and moving parts)
We used a 20 amp Circuit Breaker to power the brake controller, AND supply power to the 12 Volt power terminal on the trailer plug. This truck did not have wire ran to the back, so we used our 2 conductor brake wire and ran it ourself. The two conductor wire was used, one wire for the brake feed, and one wire was used to provide the AUX power to the trailer plug.
Drilled a small 3/8" hole in a rubber plug in the fire wall to run the wire to the brake controller under the dash.
(Note, we had not yet connected the power wire to th battery stud in the picture above! )
