Question about 2002 Ford Explorer Sport

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Rear taillights and turn signal lights not working

We purchased a 2002 ford explorer sport used. I am having problems with the rear taillights and turn signal lights, both are not working but the upper brake light works and the back up lights work. First like most I tryed the fuse...then he bulbs that did not work next both lightbulb sockets still nothing then I tryed the relay under the dash on the right... nothing. I even tryed the turn signal switch.. still was not working... does anyone have any other ideas Thanks Mike

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  • elmiraus Jun 02, 2009

    I have the connection on their for towing but no hitch. You would just have the add a ball to the bumber.

    Mike

  • elmiraus Jun 02, 2009

    I just looked at the socket connections for the trailer hook up and it is factory not an after market. I tryed to trace the wires underneath and everything looks factory. Any ideas where the wires are grounded at possibly under the dash? What may be a fix for the solution you described? The pins all look good and the wires are not taped from about 6 inches to the wire loom. thanks for the help

    Mike

  • rjbeg123 May 11, 2010

    Do you have your explorer set up for towing?

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  • Master
  • 272 Answers

I asked that becauses of the wiring for the tow setup. If the previous owner had uhaul or one of the other tow companies out there install the wires for the tow package they use a crappy little product that they clamp to the wire and push a pin that cuts the casing and connects the circuit. It also seriously weakens the cables, and lets water in to the wire. Since you have a tow package I'd focus on those wires back there sounds like you may have a short. Those pins do have some wire exposure when installed right and I've seen them bundled and taped on the early 2000's explorers without being individually taped first, which leads to shorts and non working turn signals and brake lights.

Posted on Jun 02, 2009

  • rjbeg123 Jun 02, 2009

    Just out of curiosity have you tried to ground the bulb to the car? Have you taken a multi meter to the actual light socket? Try putting your + wire on the center pin and your - on the frame and see if it's a grounding issue with the sockets. I had an Explorer and lost my rear lights and it was a grounding issue but it was in the factory tow harness. I had been out doing some 4 wheeling and the harness actually has some plugs that had snagged on limbs and disconnected. I only found them when I untaped the factory job and went through with my meter. You can get a cheap meter at radio shack for about $14.00, Then you can test for power at the switch and flasher and find out where you're not getting power anymore.

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  • Ford Master
  • 1,632 Answers

Repair the trailer harnes for short.
Re-ground the wires.
Vitally

Posted on Jun 02, 2009

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