Bargman Breakaway Switch Wiring

[Dstn2bdoa]

Hi Guys and Gals,

I had to reroute my breakaway switch wiring and screwed up.

When removing the two black switch wires from the 2 bundles of wires secured with wire nuts, I put painters tape on a bundle and on the switch wire that was hooked to it, thinking that when it's time to put them back together, tape goes to tape.

When moving the switch wires, I accidentally pulled the tape of the switch wire, now I do not know which wire goes where.

The switch has 2 black wires upper and lower. One bundle has two black wires, the other bundle has a light blue and a black wire. If anyone has an idea on which switch wire, upper or lower, goes to what bundle, I would be forever thankful.

Or perhaps, there is a way to test the wires? Hit the brakes and the wire that gets voltage gets the upper or lower switch wire for example.

Thanks in advance.

[Daryles]

In the battery compartment you will find a blue wire going to one of the red self resetting circuit breakers. This is the brake 12vdc power wire (hot).
You will need a multimeter to figure out which wire is the other end at the brake away switch.
Here's a wiring diagram for trailers

[Dstn2bdoa]

You are awesome. I will try this tomorrow.

Thanks

[WeBeFulltime]

I ALWAYS take a pic before disconnecting any wiring I want to reattach.