Wire and Function In A 7-Way Connector To Allow Brakes To Release When Backing Up A Boat Trailer

Question

Question:

A boat trailer I am going to pull has a fift wire required to release the brakes when backing up. Witch terminal in a seven wire plug EB or auxiliary?

asked by: Vt

1

Helpful Expert Reply:

The fifth wire that allows you to back up a boat trailer is the reverse function. Sending signal from the reverse function will allow the solenoid to disengage the surge brake function electrically. The reverse function is found in the center of the 7-way connector. I've attached a diagram to help.

expert reply by: Jason S

1

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Answer 1

It is possible to re-pin an adapter like #HM47570, but it would be much easier to add a 7-Way trailer connector to the trailer side and wire it accordingly to function with your reverse lockout. You can use Pollak Black Plastic, 7-Pole, RV-Style…

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Answer 2

It sounds like you need a Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord item #RM-152-1676-7 for your 2018 Jeep JL Wrangler Unlimited. This complete kit includes everything you need to connect your RV's…

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Answer 3

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 4

Some drilling is required for the Roadmaster base plate kits if your 2007 Toyota Tacoma is a 2 wheel drive model. The 4 wheel drive and Prerunner models do not require drilling because there will be a bolt holding a frame cap in place. I have…

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Answer 5

This is a fairly common problem for trailer setups that use 6-way connectors like the #PK11604 that you referenced. The issue is that there is two accepted ways the connector can be wired up. The only difference between the two setup is that the…

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Answer 6

The Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector part #30717 can be used to adapt the 4-pin connector on your vehicle o the 7-way on the trailer side. You simply ground the 7-way plug and plug the 4-pin into the pigtail from the plug. If…

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Answer 7

Odd that your trailer has hydraulic surge brakes and a 7-way, but you do not need a trailer brake controller unless your trailer has electric brakes. So all you need for your 2016 Toyota Highlander with the factory tow package is a 4-way and then a…

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Answer 8

I checked the Featherlite Trailer website for specs on the model 3116 trailer but this part number returned no results. But if your trailer uses an industry-standard 50-degree a-frame design then the Demco A-Frame Trailer Coupler #DM16680-52 will fit…

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Answer 9

To find the reverse light circuit on a vehicle is pretty easy but it may take digging around in the door panels or interior panels of the vehicle. What you need to do is find the wires that lead into the reverse lights on your vehicle. Test both of…

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Answer 10

The message on the display of your Prodigy P3 most likely is Open Ground No Brakes, which indicates that the ground wire of the brake controller is not making a solid connection to your vehicle battery. To fix this you will need to check the…

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Answer 11

The easiest way to find the reverse wire circuit is to use a circuit tester like part #PTW2993. If your back up light is a separate light at the rear of your Highlander, use the circuit tester to check the wire when the truck is in reverse. Have…

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Answer 12

A factory 7-way trailer connector isn't all you need to power a trailer's electric brakes. You still need a brake controller. Some Ford F-150s are equipped with a factory integrated brake controller, which you may have. If your 2012 Ford…

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Wire and Function In A 7-Way Connector To Allow Brakes To Release When Backing Up A Boat Trailer

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