Installing Trailer Wiring on a 24V System of a Military Hummer --1987 M998 hmmwv
Updated 09/11/2017 | Published 09/08/2017
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Question:
I have a military hummer which I am attaching a trailer to. It is a 24v. I am wondering what/how to connect wiring.
asked by: Frank
Expert Reply:
I've attached an article as well as a photo to assist, but you will need to add a step down converter between your light functions, and add a 24V relay between the cold side of your brake light switch for your brake controller if you will be using electric brakes on the trailer.
There isn't an easy wiring harness with this converter already installed, so I recommend you use the Curt Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 60" Wire Lead # C58044 (you will need to get the step down converter and install in line) to give you a 4-way connection. Then you can use the # ETBC7 to give you the wiring for a 7-way and brake controller. I've attached the article to assist in how you connect this differently based on your 24V system so your controller receives the proper power, the stop light signal is delivered properly to the controller, and then the output will be the correct voltage because you took care of that on the front end of the controller. For a brake controller, I recommend the Tekonsha Prodigy P3 # 90195.
Only if you are using a 4-way trailer running at 24V (which cannot have trailer brakes) will you have the ability to just splice in and then use lights like the Miro-Flex LED Trailer Stop/Turn/Tail Light - 12 Diode, 24 Volts - 4" Round - Red # STL23R24B.
Let me know if you have further questions.
Product Page this Question was Asked From
Miro-Flex LED Trailer Light w/ Reflector - Brake, Turn, Tail - Submersible - Round - Red - 24V
- Trailer Lights
- Tail Lights
- Brake/Tail/Turn
- Round
- Recessed Mount
- Submersible Lights
- LED Light
- 4-5/16 Inch Diameter
- Red
- Optronics
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