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Old 09-27-2005, 07:25 PM   #1
2 Rivet Member
2004 25' Classic
Newmarket , Ontario
Join Date: Sep 2005
Posts: 23
Question 7 Pin Wiring Harness Replacement

As a result of an act of vandalism I have to replace the external 7 pin wiring harness at the front of my AS. I have traced where the cable enters and exits the frame and where it enters the body of the trailer. It appears that the junction box is located on the left side of the front window behind the pullout. A cursory inspection would suggest that I will have to remove the pullout as well as the material used to cover the box in order to gain access.
Looking for suggestions.
My first post.

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Old 09-27-2005, 07:30 PM   #2
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1988 25' Excella
Sunnyvale , California
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Unhappy Read the Manual..

The "unbilical cable" does connect in front under the couch, to both the trailer lighting, brakes and power supply/charger box.. Depending on how original was "removed" there may be color-coded sections of wire left... The colors in the cable are standard and meaningful...

If all were ripped out, scroll slowly through the large owner's manual, to find a section on electrical and wiring, and some schematics will be found to show which colors go to whch terminals on trailer...


John McG


In Theory, there's no difference between Theory and Practice, but in Practice, there is usually a difference...
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Old 09-27-2005, 07:54 PM   #3
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2006 25' Safari FB SE
St. Cloud , Minnesota
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Things changed every few years and between models besides. As noted above the wire color is significant. Here's a starting point ( which I found by searching on 'color' and '7-pin' -- vary that any way that might seem relevant, leave out the hyphen, add other words. The nice thing about this thread is that Kevin Allen is one of the participants and he seems to know this topic backward & forwards.

Best of luck -- bummer of an experience. But hey, you found the right place to ask questions. Welcome to the Forums!!

5 meter Langford Nahanni

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Old 09-27-2005, 08:00 PM   #4
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1973 27' Overlander
'Possum Holler , Georgia
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What John said, bummer.

Do you need to replace the umbilical cable b/w the TV and the trailer or the box on the trailer? You can buy the cable at NAPA with a "pigtail" on one end and wire it youself. Look on the website and they will show the wiring diagram. I'll bet your owner's manual has it as well. Be careful to wire it correctly because you can burn stuff up if not done right.

Good luck.

Air No. 6427
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Old 09-27-2005, 08:05 PM   #5
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Burn stuff up is right -- and it gets especially puzzling when it is a fuse on your tow vehicle.

5 meter Langford Nahanni

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