Which 7 way round pin out is for my airstream!?!?

[AirHome]

I need some advice from the experts.

I bought this adapter
Adapter 7 Way (Blade) to 7 Way (Round Pin) Hopkins Wiring 47595

but it's not working properly for me between my 2009 dodge and 1973 airstream.
(I get my license light flashing with a left blinker and my left trailer brake light on constantly with no blink, no other lights)

I want to double check the pin out using an ohm meter, however when I try to looking for the correct wiring diagram for my trailer using this forum and the googles, I find several different pinout options for a 7 way round pin connector.

http://www.airforums.com/forums/f37/...tor-48969.html
shows backup lights center pin???

http://www.etrailer.com/Merchant2/gr...qu6825_500.jpg
shows Brake control center pin???

http://www.farmbox.com/images/7WayTrailerEnd.jpg
shows Aux in center pin???

http://cdn.airforums.com/forums/atta...4&d=1286277651
Shows Charge line in center pin???

Can anyone direct me to the correct information?

I can re-pin the adapter, if I locate the correct pin out for trailer.

Thanks if you can help!!!

[overlander64]

Greetings nwaddle!

Welcome to the Forums and the world of Vintage Airstream ownership!

Originally Posted by rwaddle

I need some advice from the experts.

I bought this adapter
Adapter 7 Way (Blade) to 7 Way (Round Pin) Hopkins Wiring 47595

but it's not working properly for me between my 2009 dodge and 1973 airstream.
(I get my license light flashing with a left blinker and my left trailer brake light on constantly with no blink, no other lights)

Can anyone direct me to the correct information?

I can re-pin the adapter, if I locate the correct pin out for trailer.

Thanks if you can help!!!

I don't know of any commercially available adapter that will work between a current industry standard blade type connector and the 1970s era Airstream round-pin connector. The highest probability is that what you will need to do is work between the blade-type wiring diagram and the Airstream round-pin wiring diagram. My best guess would be the following:

• Current Industry Standard 7-pole blade-type Connector Wiring Diagram
• Airstream round-pin connector Airstream Wiring Diagram
  • You will likely find that the diagram labeled for 1966 through 1981 will correspond to your coach's wiring.

Good luck with your investigation.

Kevin

P.S.: My suggestion would be to add a 7-pole round-pin connector to your tow vehicle and wire it for your Airstream - - there shouldn't be any problem with having both round-pin and blade-type connectors on your tow vehicle. Since the only two trailers that I ever tow are my Overlander and Minuet, I have replaced the blade-type connectors on my tow vehicles with the corossion resistant round-pin connectors.

[TG Twinkie]

My guess is that your trailer is wired like my Argosy. I have been working with owners of AS's in this era '73, '74', 75'. These trailers were wired differently than todays trailers. Here is the wiring diagram that I think will apply to you trailer. You can check your trailer pin out with a battery charger to see what makes what work.
Do you have a receptacle on the front of your trailer that the umbilical cord plugs in to? If so you might be able to pull it out far enough to check the wire colors. If the "charge line" wire is blue, it's probably the same, you can check that by looking at your converter.
I bet your Dodge truck is wired like my '98 Dodge, I've included the pin out for my UCord as well.

The Argosy colors are as follows:

Yellow = brakes
White = Ground/common
Blue = charge line
Green = tail and marker lights
Brown = Right turn/Stop
Red = Left turn/Stop.
Black = backup lights

The colors probably will not match the colors in the UCord because it is probably wired to todays standard. Which are as follows:

White = Ground/common
Blue = Brakes
Green = Tail and marker lights
Black = Battery charge line
Red = Left turn/Stop
Brown = Right turn/Stop
Yellow = Auxillary (maybe backup light)

You may be able to make it work by switching a few wires, but keep in mind that the ground, charge line and battery wires are #10 wire all the rest are #16.
I'm sure if you were to make your own UCord up with a round pin plug for the trailer end and a flat blade plug for the truck, you could make it work without a problem. That way there is no adaptor invloved. Your UCord is the adaptor.

[TG Twinkie]

Depending on the manufacturer, the 7 conductor cable may have different color combinations. Here are a couple of examples. The seven way connector in the photo shows a purple wire, while the cable listed (click on the website address below) does not have a purple wire.




http://www.wiringproducts.com/contents/en-us/d126.html

[TG Twinkie]

Have you had any success with your wiring and lights?

[DanielB]

This is from the 1975 Service Manual.

[AirHome]

Thank you all for your help. The diagrams were all helpful, but in the end I had to get a multimeter and test things out to be sure. It didn't help that I learned during the process that the PO removed 80% of all the external bulbs. **sigh**

I am now in the process of replacing them.

Thanks again!

[Mikethefixit]

HAVE fun Waddle I will bet ya there are a lot of things the PO didnt tell ya. In our 77 I found that there was no Hot water line to the galley. ALL the 1/4 inch copper to the bathroom sink and shower had been cut,kinked over and or other wise plugged with heater hose and screw up clamps. OUR trailer had been frozen an patched and a poor job of it.
GOOD LUCK
Roger

[pgr32e]

You'd be well advised to check the wires all the way through anyway, as the PO might have done more than remove a few bulbs. I found my brake control wire disconnected on the fitting inside the front of the trailer. Good luck.