Troubleshooting UPG Breakaway Kit To Allow Trailer Transport To Service Center

Question

Question:

My positive terminal of my battery back up for the breakaway system rusted off and the lights and breaks wont work now. Can I bypass the battery so that the system will still operate and I can make it to the service center?

asked by: Neihl

0

Expert Reply:

You can get your trailer to a repair center without a breakaway battery working. You will just need to disconnect the power going to the switch for the pin prior to the pin. This will disengage your breakaway system until you can get it looked at. If there is still power going to your brakes, there is a short somewhere else in your system.

Another option is to get the kit and replace it yourself. If you just need a battery, I recommend the Breakaway Kit Replacement 12 V Battery # HM20008. If you want the entire kit, I recommend the Engager Trailer BreakAway Kit with Charger and Tester # 20099.

expert reply by: Jason S

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Thomas O.

6/14/2020

Why does the charging light stay on,even when not connected to tow vehicle?

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Chris R.

6/18/2020

Do you by chance have a separate auxiliary battery in the trailer? If so, the breakaway battery could be pulling charge from it while disconnected from the tow vehicle. You'll want to add a diode in-line between the aux and breakaway battery. If this isn't the case let me know.

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Thomas O.

6/18/2020

@ChrisR My trailer does not have any other battery system . This answer may aply to a RV trailer, I have a car trailer.

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Chris R.

6/22/2020

@ThomasO Thanks for the info! You likely need to replace the lid on your Engager with part # 20106. Sometimes water can get inside the unit and cause the charger to constantly try to pull power even when not hooked up to the tow vehicle.

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Answer 1

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Answer 2

If the break away battery on your trailer is not charging and you aren't getting any 12V power on the wire leading to it, then I recommend starting by testing the 7-Way connector on your Sierra. You can use a circuit tester like #PTW2993 to…

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Answer 3

The three wires of the Tekonsha Breakaway System part #50-85-313 will get wired as follows: The white wire attaches to the ground wire. The blue wire attaches to the brake output circuit that goes to the brake assemblies of the trailer. The black…

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Answer 4

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Answer 5

I have attached the installation instructions for the Hopkins Engager Trailer BreakAway Kit, part #20099. This kit includes a charger and an LED tester and will work with single and tandem axle trailers. I have also attached a link to an installation…

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Answer 6

A standard trailer breakaway switch like #3802348 does not have a circuit board but a unit like the Tekonsha Trailer BreakAway Kit #PS50-85-320 does have circuit board for its battery tester. If this circuit board is corroded, you need to replace the…

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Answer 7

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Answer 8

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Answer 9

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 10

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Answer 11

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Answer 12

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…

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