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Old 05-10-2012, 03:59 PM   #1
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7-Pin Guesses?

Last night had to re-attach all of the interior wires to the Polak (sp?) 7-pin. Didn't use the colors inscribed on the plastic above each screw but rather references to the non-standardized connections common to older models.

Does anyone have a photo they would be willing to share of the correct position for a 1969 31' Airstream Sovereign LY.

The left turn signal should be straight up at 12 o'clock along with brake lights. Brake lights work great, but zero turn signal. Bulb works. Also, there appears to be an extra white wire (believe this to be the ground at 6 o'clock -- thicker white wire) ... and an extra, shorter black wire. Any and all thoughts would be appreciated! : )

I'll try to post a photo later when I'm at the trailer. Happy Thursday ya'll!
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Old 05-10-2012, 04:39 PM   #2
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Quote:
Originally Posted by stowaways View Post
Last night had to re-attach all of the interior wires to the Polak (sp?) 7-pin. Didn't use the colors inscribed on the plastic above each screw but rather references to the non-standardized connections common to older models.

Does anyone have a photo they would be willing to share of the correct position for a 1969 31' Airstream Sovereign LY.

The left turn signal should be straight up at 12 o'clock along with brake lights. Brake lights work great, but zero turn signal. Bulb works. Also, there appears to be an extra white wire (believe this to be the ground at 6 o'clock -- thicker white wire) ... and an extra, shorter black wire. Any and all thoughts would be appreciated! : )

I'll try to post a photo later when I'm at the trailer. Happy Thursday ya'll!
I don't have pictures, but this will tell you what airstream color goes to what color mark on the connector.. This applies up thru 1981 or so, when Airstream went to industry colors

Airstream Function Industry

Red . Left turn/stop . Red
Green . Tailight/clearance . Green
Brown . Right turn/stop . Brown
Blue . Charge line . Black
White . Ground . White
Black . Backup lights . Yellow
Yellow . Brakes . Blue

When posted it doesn't space out right
The first color is the Airstream cord, The second is function and the last column is the color marked on the plug.

I am assuming you are wiring the flat blade 7 pin Pollack plug that is on most tow vehicles today. They also made a round pin one that used to be used
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Old 05-10-2012, 05:57 PM   #3
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Does you TV have brake lights separate from the turn signals?
The trailer uses the same bulb and filament for brake lights and turn signals. If the brake lights work. It confirms the wiring on the trailer is correct for the brake and turn signals.
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Old 05-10-2012, 06:41 PM   #4
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Get yourself a 50' long piece of 14 gauge wire and an ohm meter and you can identify each and every one of them

Yah, it's a bit of trouble, but it works.

Best of luck,
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Old 05-10-2012, 06:56 PM   #5
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7-way tester

I had good and fast success wiring the new 7-way plug and new cord using a 7-way tester, a small battery charger, a jumper light, and a small multi-meter. I wired all separately and detached from the tow vehicle. I didn't attach the tow vehicle until I had the trailer and the new cord wired and tested. When I attached the tow vehicle, I had to reverse two wires on the cord plug.

The previous owner had removed the 12 volt towing light fuses and removed the power to the break away switch. I installed a new fuse panel according the service manual and I installed a new break away switch from Vintage Trailer Supply.




Breakaway Switch



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Old 05-13-2012, 05:19 PM   #6
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Here is a factory schematic for '66-'81.
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Old 05-17-2012, 05:00 PM   #7
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Splitrock -- Twinkie -- thanks! All four tail lights were corroded where bulb makes contact. Ordered new ones. Will install tonight and begin process again. With more luck hopefully. " )

BTW, seems I have two extra wires ... small black wire and small white wire. White wire isn't as thick as the ground wire. Welcome any other guesses. Wish me luck.
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Old 05-17-2012, 06:10 PM   #8
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What's the location of the extra wires?
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Old 05-17-2012, 06:33 PM   #9
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Split, need to install these first... Electrical novice. Any advice for how to hook up the new lights? The existing one on right only has one red wire, but replacement has red and white. Appreciate any suggestions. Assuming the green is ground?
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Old 05-17-2012, 06:42 PM   #10
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The old one apparently used the frame mount for a ground. The new is better for me. Red to red and ground the white to the body with a new stainless steel screw. Use stainless steel screws to install new lights as well.

Solder the splice, use heat shrink tube for insulation.
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Old 05-18-2012, 12:06 AM   #11
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No luck tonight. Seems that green is not ground but rather running lights. Brown / Red appear to be blinkers. When hooked up accordingly lights dim but do blink. Tomorrow is another day. Will try again.
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Old 05-18-2012, 08:08 AM   #12
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12 volt towing light diagram

Here's another diagram.



Check this link out.

http://www.airforums.com/forums/atta...3&d=1296343489

Click open when the window opens.


`
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Old 05-18-2012, 08:28 AM   #13
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White is common/ground.
Green is tail/running lights
Red is left turn
Brown is right turn.

I think your problem is with the common/ground connection.
There are several places to check.
At the UCord connection of the TV
The main common/ ground connection on the trailer
The common/ground connection at each fixture.
Are the running lights also dim?
You may still have a wiring problem as well. The UCord may not be wired correctly.
You can disconnect the UCord and check each circuit with a battery charger by connecting the black lead of the charger to a clean spot on the frame, then test each of the circuits with the red lead.
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Old 06-14-2012, 02:07 PM   #14
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Culprit was new tail from Vintage Airstream. Black and red wires were wired backwards on two out of four tail lights. Once we traced it back to lights, all worked perfectly. Thanks for the input!!!
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