How To Install the Tow Ready Tail Light Isolating Diode System On a 2018 Jeep JL Wrangler

Question:

I’m not sure which wires to splice in to on a 2018 Jeep Wrangler JL. I am unable to locate any wiring diagram for the tail lights

asked by: Donald W

Expert Reply:

I do have an option for you but I would not be able to provide the exact wire colors to splice into for the Tow Ready Tail Light Isolating Diode System with 4-Pole Connector part # TR118821. In order to find out which wire has which function you will need to test the wires behind the taillights while the circuits are active as that will then tell you which wire has which function. I have attached a sample video on this process to show how it is done.

expert reply by: Conner L