Question about 2002 Ford F250 Super Duty SuperCab

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I've done that.....

Thanks for the help. The camper trailer is less than a week old. I've checked it with the voltage tester and ohm meter (ground, power, etc). There is no power to the pigtail, let alone the trailer (we even checked with another F350). My main question is, where is the fuse box under the hood? I've owned several new Ford trucks and can visualize where they are, but can't find this one. The only lights affected are brake/turning. It makes sense with the 2 fuse/isolated system. The problem started when we towed our older trailer last week. Thanks again.

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  • Patrick Jul 29, 2008

    I know where it "should" be, but there's not one. Thanks for the help. I can compare it to several a year or two older, and they are where you said. May have to take this one in......... There's plenty of relay boxes and harness connectors, but........ Not the usual "Fuse Block" or other panel.


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The box I believe it is on the drivers side by the fender, it has a black cover, it is marked. I am sure the older trailer is the one that caused the problem, good luck, and do an internet search if you can't find it, there are many sites devoted to Ford truck repair.

Posted on Jul 29, 2008

  • yadayada
    yadayada Jul 29, 2008


    The fuse panel is located below and to the left of the steering wheel by the brake pedal. Remove the panel cover to access the fuses. It is large plastic panel.

    To remove the fuse panel cover, turn the panel fasteners counterclockwise. #6 fuse is the trailer turn/signal, it is a

    20 amp

  • yadayada
    yadayada Jul 29, 2008

    I just gave you the fuse box location, here is the link to the ford site https://www.fleet.ford.com/maintenance/o...

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I should clarify myself at this point. The wires at the relay are as such: The ground is the light green and red wire, the light blue and pink is the fused power source to the relay, the dark blue and yellow wire is the relay trigger source from the air ride module to the air ride relay, and the grey and red is the relay output (battery +) to turn on the compressor. OK.
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voltage_drop.jpg

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egulator checked with voltmeter?

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1 Answer

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