Recommended Tow Bar Wiring For 2014 Jeep Wrangler Unlimited

Question:

Using towed vehicle harness, what happens when brake controller applies towed vehicle brakes with brake lights? Short circuit? Do you have tiny lights to drill in to 2014 Jeep Wrangler tail light housings?

asked by: Michael

Expert Reply:

If the wiring harness for your vehicle is wired properly, the signal to the brake lights is received through the wiring harness and not the brake controller, to make the towed vehicle lights operate. We do not have a bulb and socket kit available for your 2014 Wrangler Unlimited.

You may need a brake light relay like part # RM-88400. The brake light relay ensures the towed vehicle turn signal lights work in tandem with the towing vehicle lights. To find out if you need a brake light relay you can answer the following questions:

Are you using a supplemental braking system that depresses the brake pedal in your towed car?
No - You do not need a brake light relay.
Yes - You may need a brake light relay. Continue on to the next question.

Do the brake lights on your towed car illuminate while the engine is off?
No - You do not need a brake light relay.
Yes - You may need a brake light relay. Continue on to the next question.

Do your towed car's brake lights act as both the brake signals and the turn signals?
No - You may need a brake light relay. Continue on to the next question.
Yes - Your towed car has a combined lighting system. You will need a brake light relay to ensure proper activation of its signal lights.

Does your towed car have separate brake lights and turn signals?
No - Your towed car has a combined lighting system. You will need a brake light relay.
Yes - Your towed car has a separate lighting system. You may need a brake light relay. Continue on to the next question.

Are you wiring your vehicle with a six-diode kit or a TowDaddy custom wiring harness?
No - You will need a brake light relay to ensure proper activation of your towed car's signal lights.
Yes - You do not need a brake light relay.

For the tow-bar wiring I recommend part # RM-154. This includes the diodes needed.

You will also need an umbilical that goes between the wiring on your RV and the vehicle. If you have a 7-way on your RV and need to hook up to the 4-way on the vehicle you can use an adapter like part # BX88206. You would need to cut the end off of the RM-154 and wire it to the 6-way adapter included with the BX88206. Then you would plug the 6-way on the coiled cord to the 6-way on the vehicle and plug the other end into the 7-way on the RV.