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Old 08-21-2012, 01:56 PM   #1
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1957 22' Caravanner
1964 26' Overlander
1954 29' Liner
Washington , Washington, D.C.
Join Date: Aug 2011
Posts: 95
'64 Overlander brake and turn signal issues

So my 64 overlander has one brake and turn signal light that refuses to work! I've removed the fixture, cleaned it, checked the bulb, replaced the bulb, removed the interior alum panel under the back window to verify wire integrity everything checks out...but still the light refuses to work...the running light works! The other rear fixture works...I'm at a loss! Any ideas??? Also where is the wiring harness for the trailer plug to the tow vehicle??? Help help help!!! Thanks

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Old 08-21-2012, 06:59 PM   #2
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Morrill , Nebraska
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Check to see if you have voltage at the socket. You didn't say which side it is on. Red = left turn, Brown = right turn. If no power at the socket, remove the fixture and check for power on the wire.
Have you tested it with any other power source than your TV? If not, try using a battery charger to verify the problem is in the trailer.

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Old 08-23-2012, 07:29 PM   #3
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1964 26' Overlander
1978 Argosy Minuet 6.0 Metre
Anna , Illinois
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64 Overlander brake and turn signal issues

Greetings 57BB!

Welcome to the Forums and the world of Vintage Overlanders!

The junction box for your coach's umbilical cord wiring should be in the front curbside corner of the bellypan. You can identify the junction box by an access hatch screwed or riveted to the bellypany. You are likely to find that all of the coach's wires are the same color . . . I believe they were all red in my Overlander (it has been a few years since I had this junction box opened). I would also mention that your Overlander's Bargman Connector may not be wired to the standard utilized by today's tow vehicles. The Bargman connector on my Overlander had to be rewired before I was able to tow it home in 1995.

I have run into a similar issue with my Overlander. The item that was causing the problem on my coach was the ground. The solution was to remove the tail light's base and clean both the trailer's skin and the back of the light's base. Reinstalled the base with Vulkem sealant and stainless steel sheetmetal screws. The problem was cured, but it has reappeared about every third year.

Good luck in solving your wiring issue!

Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
AIR #827
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 08-24-2012, 09:36 AM   #4
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1957 22' Caravanner
1964 26' Overlander
1954 29' Liner
Washington , Washington, D.C.
Join Date: Aug 2011
Posts: 95
Thanks Kevin. It seems that someone must have covered this access panel up or for whatever reason there isn't one on this particular trailer...but at least now I know the general location of the that is where i'll look.

I did exactly what you suggested with the original back plate cleaning etc. I even got ahold of another back plate in better condition and tried it. Still no luck in getting this thing to work. But, since the red wire is the likely culprit I am hopeful that finding the harness will reveal a short. If that doesn't work then I'll have to rewire that fixture since I know the fixture itself is really not the problem. The whole issue of ground is strange since there is clearly power going to the light socket and is certainly got a good connection to the trailer what else it could be I'm really unsure of...

Thanks again for the suggestions! I will keep the forum posted on how this resolves for others who find themselves with this problem

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Old 08-24-2012, 10:21 AM   #5
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1966 26' Overlander
Woodstock , Georgia
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It helped a ton when I took that panel off on my 66 and cleaned all the wiring up. I sprayed electrical contact cleaner all over, checked the connections and all is well.
Having good grounds makes a difference.
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