4-way trailer connectors are available in two styles: flat and round. They also provide a wire for a ground connection. The wiring underneath looks pretty amateurish so replacing all the brake wiring wouldn't be a terrible idea. The four wires control the turn signals, brake lights and taillights or running lights. Here are some links to things that I use for wiring:Weather Tight Mixed C. Identify a suitable mounting location and drill a 9/32' hole in the trailer frame to mount the breakaway switch. This is critical for proper engagement of switch. The brakes shoes were worn down to bare metal so I'm assuming at some point the brakes worked without using the trailer as a ground. Replacing an old trailer breakaway system. Step 1 - Mounting Position the breakaway switch on the tongue of the trailer so that it allows the cable to reach the tow vehicle's trailer hitch safety chain eyelets. Looks like the previous owners just ran it off vehicle ground, could this be an issue? This is an equipment trailer that was left by the previous owners of my house and included in the closing. I'm not finding any grounds actually attached to the trailer. Designed to apply the electric brakes on your trailer in the event of an accidental separation(break away) from the towing vehicle when coupled to a break.
Everything on the trailer works except the brakes.Ĭan I bypass the breakaway and just go blue/blue ground/ground all the way to harness to eliminate that as an issue? I've double checked the harness wiring and it is correct. So far all I get on it is a single dot which means the controller thinks there isn't a trailer attached. The switch holds a pin on the end of a cable, which is then connected to the tow vehicle. 85.93 Dexter Trailer Hub and Drum for 3,500-lb Axles - 10' Diameter - 5 on 4-1/2 - Galvanized (3) 153.01 Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10' Diameter - 5 on 5 - Pre Greased (57) 141.58 Easy Grease Trailer Idler Hub Assembly for 3.5K Axles - 5 on 4-1/2 - Galvanized (223) 56. I haven't tested the wires at the back of the controller yet. The breakaway switch is mounted to the A frame. I've never used the brake controller on this truck, so right now I'm not sure if the issue is truck side or trailer side.
So far the brakes aren't working and I'm trying to narrow down the issue. I'm trying both the brake controller that came used and already installed on my truck(activator II) and I replaced all the electric brakes on a trailer I've never used before.
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