Troubleshooting Trailer Wiring Replacement with 6-Way Where Trailer Brakes Lock Up After  

There are two accepted ways of wiring a 6-way trailer connector. One uses the center pin as the 12-volt power accessory feed, the other uses the center pin for the brake output circuit. It sounds as if your trailer and adapter are wired…

I am going to make a wild guess here. Your horse trailer has a 6-way trailer connector with the round pins, right? (most of them do). Your truck has a 7-way connector with the flat blade-type pins. In order to make them work together, you are using…

It sounds like you are using an adapter like the Hopkins #47549 to connect the 7-Way on your truck to the 6-Way on your trailer. You are on the right track with your troubleshooting as there are two common ways for a 6-Way connector to be wired;…

I have attached the common wire colors on a 7-way for you below but as not all trailer manufacturers use the same wire colors and they could have been replaced at one point in time so it would be best to test them with a 12 volt battery. Once you…

I think I know what is happening here. Does the adapter you are using have 5 pins in a circle, plus one in the middle? This is a 6-way connector, there are two generally accepted ways of wiring this connector. One method uses the center pin as the…

What you are looking for is called a #3015-S Brake Controller Wiring Adapter. The brake control wiring adapter is used to simplify the electric brake controller installation. The 4 wires on the adapter are butt-connected to the 4 wires coming out…

The reason your brakes are locking up when you use the 7 Pole to 6 Pole Adapter, #47549, is because there are two ways that 6-way round trailer connectors can be wired, as you may have already discovered. The difference is the pin for the electric…

What you are experiencing is a common problem. Does the truck have a 7-Way connector and the trailer has a 6 way? If so, and you have used a 7 to 6-Way adapter to make the connection, the problem could be the adapter. There are two possible ways to…

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…