I've got a trailer with a 4 pin connection system. My guess is that the 4 pin connector has the following wires and purposes:
Wire 1 = Running lights: Front Clearance lights, license plate light, taillights
Wire 2 = Left Turn Signal
Wire 3 = Right Turn Signal
Wire 4 = ?
How do the brake lights work? Are they Wire 4? Is there a ground wire?
I accidentally pulled all the wires out and need to figure out what does what?
The closer plug is the trailer side. So beginning on the right (male), as viewed, what should the four wires do?
My trailer is a Canadian model Snowbear, so I'm not going to assume standard color arrangement, they might be metric colors.