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Where are the Ground Wires Located on Electric Trailer Brakes

Question:

Reading your answers to other questions, you say to check all the trailer grounds to make sure there is a good connection. My question is were are these grounds located on a 5th wheel with self adjusting electric brakes? Thank you for your help.

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Expert Reply:

Electric brakes have 2 wires located at the back. One is for power and the other is for ground (it doesn't matter which is used for which function). The ground wires should be connected to the trailer frame.

The only other place that would carry a ground is the main ground wire that is connected to the pin in the 5 o'clock position on the 7-Way of your trailer (see attached picture).

I have attached a video of the trailer brake assemblies # AKEBRK-35L and # AKEBRK-35R being installed on a trailer. If you jump to the 5:50 mark in the video you can see where the wires should be located.

click to enlarge
click to enlarge
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Jon G

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