Electrical Connection from Motor Home to a Jeep Wrangler for Tail Lights when Flat Towing

Updated 11/03/2011 | Published 11/02/2011

Question:

Hello, My motorhome has the tail and brake light combined in one wire for each side and my Jeep Wrangler has seperate wire for each light How do I solve the problem so the lights work when being towed and also when independent. I have installed the diodes and wiring but do not know how to make it work. Thank You

asked by: John L

Expert Reply:

If you already have the diodes installed, all you have to do is it connect the motor home to the Jeep Wrangler. The diode kit probably came with a 4-Way flat trailer connector that should be at the front of the vehicle. In a perfect world, the motor home would have a 4-Way flat receptacle. If that is the case, just plug then into each other.

If the motor home or the diode kit had a different type of connector, you will need an adapter or you may have to hardwire in the correct connector depending on what is on each vehicle.

I have included a link to a video showing a typical diode installation, an FAQ article on wiring a a vehicle with separate tail light wiring like yours, and a link to an FAQ article on wiring up the motor home if it does not have any kind of trailer connector.

expert reply by: Michael H