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Originally Posted by lizpickering
I went to wire a 7 way plug on my trailer today and was surprised to find the colors used in the cable. A black, blue, orange, pink, green, and two whites. Anyone else seen these colors used? Thanks for any help.
As has been mentioned by others, your '66 coach will have non-standard wiring colors, and the Bargman connector may be wired in a pattern different from what is the industry standard today. I have attached pdf files with the pattern that Airstream used in 1964
as well as the pattern utilized between 1966
and 1980. I am attaching both as 1966
was a transition year and some of the earlier coaches may have been wired to the earlier standard.
Should you find that the wiring colors on your coach do not match those in these diagrams, you will likely find that a previous owner installed a new umbilical cord of his/her own design. You might find through inspection that you need access to the terminals for the coach's running lights . . . this access is likely through a rectangular or square opening in the curbside front corner of the bellypan . . . an access panel is usually screwed to the bellypan to weatherproof this opening. I am not certain whether it was still being done in 1966
, but all of the wires in my junction box were red . . . and the number of knots in the wire indicated its function . . . but it is really easier to use a 12-volt source to identify the function of the wires and match that function to the correct position on the Bargman connector.
Good luck with your project!