Traile backup lights
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Posting Guru
Joined: Jun 2011
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From: Walla Walla, WA
U fellas know right off hand what it takes to get the relay setup off the side of the fuse box. Just so I don't go in there with a bucket of tools and still not have the right one. 
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Posting Guru
Joined: Jun 2011
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From: Walla Walla, WA
I ended up gettin one off of an f250 gasser. Some of the ones I saw had a place for 4 relays. The one I grabbed has 2 relays with matching part numbers that bill mentioned. But the box w/pigtail was one number off. Instead of f6tb it was f4tb or f7tb. I will verify in the morning. I plugged it in and I get the aux power but haven't Ben bl to check the reverse.
I noticed one of the plugs on the pigtail only had 3 wires and the plug on the truck has 4. I sure hope i dont need that other Wire to get the trailer Reverse lights to work. I would imagine i could add a wire if needed but ive never done it. It's the power supply side of the relays. I will get some pics and the part number tomorrow of the one I got.
Oh yeah and them things are a PITA if u don't have a 5mm socket to remove the 2 bolts. I think I jinxed myself by what I stated earlier. Lol
I noticed one of the plugs on the pigtail only had 3 wires and the plug on the truck has 4. I sure hope i dont need that other Wire to get the trailer Reverse lights to work. I would imagine i could add a wire if needed but ive never done it. It's the power supply side of the relays. I will get some pics and the part number tomorrow of the one I got.
Oh yeah and them things are a PITA if u don't have a 5mm socket to remove the 2 bolts. I think I jinxed myself by what I stated earlier. Lol
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Posting Guru
Joined: Jun 2011
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From: Walla Walla, WA
The aux or battery charge should be hot all the time when the truck is started. Correct. I got to figure out why it only came hot when the lights to the truck got turned on. Hmmm sounds like some wiring mixup is goin on. DANG IT!!!
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Joined: Sep 2007
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From: Medford Oregon
If you don't already have it ...
1996 Bronco/F-Series Workshop Manual
Go to section 18 - Lighting then to Trailer Electrical Schematic. Has the diagram and pin outs on the relays and trailer connector.
1996 Bronco/F-Series Workshop Manual
Go to section 18 - Lighting then to Trailer Electrical Schematic. Has the diagram and pin outs on the relays and trailer connector.
Thread Starter
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Posting Guru
Joined: Jun 2011
Posts: 1,083
Likes: 0
From: Walla Walla, WA
If you don't already have it ...
1996 Bronco/F-Series Workshop Manual
Go to section 18 - Lighting then to Trailer Electrical Schematic. Has the diagram and pin outs on the relays and trailer connector.
1996 Bronco/F-Series Workshop Manual
Go to section 18 - Lighting then to Trailer Electrical Schematic. Has the diagram and pin outs on the relays and trailer connector.
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Posting Guru
Joined: Jun 2011
Posts: 1,083
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From: Walla Walla, WA
Almost got all the wiring in on the trailer. The harness I got at the JY even though its a different part number it still works. I got power at the plug for reverse lights when the truck is running. Thanks for all of your help and advise. I will post up some pics of the trailer reverse lights and my truck reverse lights. Tis the season for lights. Lol
Hotshot
Joined: Jan 2012
Posts: 11,132
Likes: 3
From: Southern West Virginia
Almost got all the wiring in on the trailer. The harness I got at the JY even though its a different part number it still works. I got power at the plug for reverse lights when the truck is running. Thanks for all of your help and advise. I will post up some pics of the trailer reverse lights and my truck reverse lights. Tis the season for lights. Lol