Posted by Jim.ME on August 09, 2021 at 16:52:45 from (67.242.178.40):
In Reply to: Trailer update posted by super99 on August 09, 2021 at 14:09:55:
Quote: CVPost-super99 (quoted from post at 19:26:31 08/09/21) The slots in the plugs are lined up, colored wires are matched except for extra black and red wire on trailer. I checked the wires from the plug to the junction box on the trailer and all are good.
I would forget the colors for now, identify the function attached to each blade in the vehicle socket, and make a drawing of what is where. The same function should be on the matching blade of the trailer plug. Identify the ground blade on the trailer plug to trailer with an ohmmeter or continuity tester. then you can use a battery (ground to trailer) to put power to each of the other blades on the trailer plug to identify what it is actually powering and compare to see if it is the correct blade to match the vehicle socket.
These two pictures may help as far as identifying which blade handles which function. The 7 way traditional standard and the 7 way RV standard use different colors for some functions but the blade for each function is the same for both (The White, Blue, and Black colors are the same functions on both). Thus another reason to concentrate on function not color.
This post was edited by Jim.ME on 08/09/2021 at 04:55 pm.
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