Adding a trailer hitch and wiring to my vehicle

Tiny
KIRTHOWE
  • MEMBER
  • 2008 JEEP COMMANDER
  • 3.7L
  • VR6
  • 4WD
  • AUTOMATIC
  • 101,000 MILES
I am adding a trailer hitch and wiring to my vehicle. I want to just tap into the rear tail lights to hook up the four wire flat connector for the trailer wiring. Is it safe to do this, or do I have to spend the $60.00 to purchase a special wiring adapter to plug into the wiring harness? I do not want to damage the cars computer, or cause weird electrical problems.
Tuesday, October 31st, 2017 AT 8:00 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Yes, you really should spend the money. I believe the reason for the adapter is that you have separate turn signal and brake lights and the trailer uses one light for both.

The truck should be equipped with a trailer tap in the rear harness that allows you to buy an adapter that simply plugs into their trailer wiring plug.
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Wednesday, November 1st, 2017 AT 9:28 AM
Tiny
KIRTHOWE
  • MEMBER
  • 2 POSTS
Okay, I was afraid that was going to be the case. Thank you.
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Wednesday, November 1st, 2017 AT 12:56 PM

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