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2002 Ford F-150 towing package wireing

Tiny
GARYJACK
  • MEMBER
  • 2002 FORD F-150
  • 6 CYL
  • 2WD
  • MANUAL
  • 163,000 MILES
My trailer plug, on truck, has running lights but no signal or brakes. The fuse that powers them are good but have no power coming to them. Is there a relay or another fuse that I'm missing?
Thursday, September 16th, 2010 AT 10:59 AM

1 Reply

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
See my profile, Imma CJ guy, I answer alot in the CJ Forums.

Have you tested your Plug (the truck end) with a voltmeter. Or are you going by the trailer lights?

I do not know about relays, but most rigs do not use them on running lights.

Pull and reinstall your fuse(s) several times to "clean" the tips. Or even try another fuse (for the heck of it)

Make sure you have found ALL locations of fuses (owners manual)

Go under and unplug the pigtail where it connects to your truck (same as a fuse, in out, in out to clean pins). Use dielectric grease on the pins when you plug them back. Cheap at parts store.

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The Medic
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Thursday, September 16th, 2010 AT 3:44 PM

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