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Old 05-31-2008, 10:05 PM   #1
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1975 Argosy 22 Rear Door
TV is '99 Range Rover 4.6HSE , California
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Tail lights, brake lights, turn signals on '75 22'

I've had some work done on our trailer and during the work we noticed that the 4 rear lights were wired as follow, from left to right:

Left outside - tail light, brake light, turn signal
Left inside - NOTHING?!
Right outside - tail light, brake light, turn signla
Right inside - NOTHING

We've checked the wiring at the tow vehicle an all looks fine there. So we're wondering - how are these SUPPOSED to work? It doesn't make sense to hae the two inner lights do NOTHING? There must be a catch...

Thanks in advance for any insight.


1975 22' Argosy Rear Door
Towed By: 1999 Range Rover 4.6HSE (fulltime 4x4)
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Old 06-01-2008, 07:27 PM   #2
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Tail lights, brake lights, turn signals on '75 22'

Greetings Steve!

The inboard lighting position was for the optional backup lights. If I am not mistaken, the wiring for backup lights is in the wall such that they could be installed as a dealer accessory. In coaches without backup lights, the position typically carried a red reflector.


Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
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1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)
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Old 06-01-2008, 07:36 PM   #3
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On my Minuet I found the two inner lights were supposed to be back up lights. They didn't work and I doubt they would be useful if they did work. Find the connection in the 7 way connector that is supposed to be for back up lights, use a long wire to set up a continuity test from the trailer connector to the lights and you can tell what they are for (if the wiring in the trailer is OK). There is a diagram for the connector at 7 way wiring diagram page. Apparently the center terminal is for the back up lights.
1966 Airstream Caravel
2006 Toyota Tacoma
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Old 06-01-2008, 08:46 PM   #4
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The most useful thing about back up lights is letting someone behind you know you are coming their way.
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