Troubleshooting Hopkins Custom Wiring Harness for Towing a 2011 Jeep Wrangler

Updated 04/10/2018 | Published 04/07/2018

Products Featured in This Question

Hook Probe Circuit Tester

(66)

$14.40

Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas Only

(406)

$201.90

Question:

I purchased the Hopkins tail light custom wiring kit for towing my 2011 Jeep Wrangler. After installation I discovered that even though the turn signals and brake lights work, if I turn on the tail lights on my motorhome the tail lights on the Jeep will not turn on. Is there something wired wrong? Thanks

asked by: Dale M

Expert Reply:

On your 2011 Jeep Wrangler, the battery needs to be disconnected for towing so there may be an internal issue with the wiring if you have not disconnected the battery. I recommend using the Roadmaster Automatic Battery Disconnect with Switch for Towed Vehicle # RM-766 for this function. If your lights still don't work with the Jeep battery disconnected, then I recommend checking your Motorhome's wiring harness with a circuit tester like # PTW2993. If there is correct function on each pin of the 4 way, then I recommend checking the ground connection on your Hopkins # HM56200 harness for a bare metal to metal connection and then testing each function at the tail lights to see if you are getting the proper power.

expert reply by: Jason S