2001 X Wiring Diagram for OEM trailer connector - Ford Powerstroke Diesel Forum
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Old 08-04-2010, 07:03 AM
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2001 X Wiring Diagram for OEM trailer connector

The driver's brake and blinker circuit on my oem trailer barrel electrical connector is on the fritz, there are alot of colored cables for me to chase, wondering if anyone has a wiring diagram for this thing?

Both my trailers do it and the blinker and brake lights work on the truck.
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Old 08-24-2010, 08:09 PM
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Hope this helps the next person trying to figure it out...
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2001 X Wiring Diagram for OEM trailer connector-87602042.jpg  
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Old 03-27-2013, 07:40 AM
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2001 Excursion, 7.3 DI TD: All lights are working on my rig. The OEM trailer wiring is on the fritz; we have power to the brake lights and turn signals, but no power to the running lights or backup lights. We want to get access to the wiring harness. Is it located under the rear fender? Any advice/experience with accessing this wiring harness? Should we be looking for it in a different area? Thank you!
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Old 03-27-2013, 07:47 AM
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I would also look for frays or shorts in the wiring harness that runs on the drivers side under the 4" plastic snap on kicker just inside the door, they snap off. I found a short in mine that affected my cyclops light and progressively my charging line, and left and right turn signals on my trailer connector. Also messed with the timing on my rear wiper.
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Old 03-27-2013, 08:40 AM
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I checked the wiring under the kicker and it looks to be in good shape. I removed the rear license plate which looks like we can access the harness just up stream from the trailer plug. I'm hoping we find power for the running and reverse lights there. If not, we'll keep looking up stream. If anyone has any other tips/tricks, please share. Thank you.
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Old 03-28-2013, 05:37 AM
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Fuse list?

Still no power for the running lights or reverse lights - checked where the trailer wire bundle joins into the main vehicle wiring harness. Maybe it's as simple as a fuse? We've ... uh ... 'misplaced' our owner's manual showing the fuse list. Any chance someone can post the fuse list for me?
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Old 03-28-2013, 07:14 AM
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Trailer fuses

1&3 - trailer tow package
4 - trailer reverse and parking lights
16 - trailer charging
28 - trailer electric brake controller

Hope this helps.
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Old 03-28-2013, 08:10 AM
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Very helpful - Thank you! It was #4 (20Amp). Put a new one in and problem solved. I very much appreciate all the help.
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Old 03-28-2013, 08:44 AM
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Glad you got her fixed.
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