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travelingbard's avatar
Apr 21, 2015

2002 Jeep Liberty - 6 pin wiring harness?

Hi all! Getting our 2002 Jeep Liberty LTD ready to tow. I don't like the idea of having to disconnect the battery on long hauls to prevent drain (have to leave key in to have wheel unlocked), so I'm considering the 6-pin cable instead of 4 so we can supply a battery charge from the RV.

The 4-pin is a no-brainer (RV already has the jack installed), but since I'm doing a fresh install on the Jeep, this would be the time to do the 6-pin and just upgrade what's on the RV.

Anybody know if there are issues/problems doing a 6-pin on this year range Liberty, or special considerations/problems to watch out for?

Thanks for any advice!
Chris

15 Replies

  • travelingbard wrote:
    Thanks for all the info! Looks like I'm going to try and go with the 7 pin. That will cover me if I ever get a car trailer with brakes as well.

    So, anybody specifically wired up a 2002 (or close year) Jeep Liberty? Having a hard time finding a "kit" with everything, so I guess I'll have to put together everything I need - harnesses, diodes, blah blah blah... I'm checking the Jeep forums as well, but not seeing much info!

    Thanks again!
    Chris

    I have suggested this many times before, but with your particular toad, I would just make up a light bar for the hitch receiver or use a hitch haul itself for mounting the lights. I like the hitch haul better, as it's ready for the receiver and gives you some extra cargo space if needed during your travels.
    Run some cable wiring from your umbilical outlet on the front to a connector on the rear (through the frame works well) that you can plug into with this removable unit. Now, you're completely isolated from the Jeep's wiring and one that didn't require any invasive procedure's or mods to the vehicle's internal wiring. With the last one we did for a friend, he was also able to plug into it with his trailer connector, when not towing and utilize the extra lighting.
  • Thanks for all the info! Looks like I'm going to try and go with the 7 pin. That will cover me if I ever get a car trailer with brakes as well.

    So, anybody specifically wired up a 2002 (or close year) Jeep Liberty? Having a hard time finding a "kit" with everything, so I guess I'll have to put together everything I need - harnesses, diodes, blah blah blah... I'm checking the Jeep forums as well, but not seeing much info!

    Thanks again!
    Chris
  • anconn wrote:
    Go to the 7pin connection. It is a far more reliable one than the 6.

    I was going to suggest this also and this way you can just wire it pin for pin and have an umbilical cord that's the same on both ends.
    Would have done this with my install, except that the umbilical and connector came with the COOLTECH wiring harness I ordered for our Wrangler. Afterwards I decided on a couple of more pins for positive toad brake indication, so just strapped it on the side of the umbilical and kept this separate from the rest of the lighting and maybe for the best, since I had to run a separate cable back to the third brake light, anyway.
    Story short, it never hurts to have a spare or two.
    The OP might also look into having the steering lock removed and be rid of it for good. Our Jeep never had one in the first place, so don't have that problem.
  • Go to the 7pin connection. It is a far more reliable one than the 6.

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