How to Separate Trim Lights From Brake Lights on Diamond Cargo Trailer

Question:

How can I separate the trim signels and break signels on my enclosed trailer? 7 pin plug on truck and trailer 3 wires at rear for break, trim , and running lights

asked by: Joey C

Diamond Cargo Trailer
(click to enlarge)

Expert Reply:

Since these "trim" lights turn on with your brakes I'm assuming they also flash with the turn signal. Whatever wire is running to these lights is probably spliced into the left and right turn/stop circuit. All you need to do is disconnect that wire from the signal/brake wire.

I'm assuming you want them to work with the running lights so splicing them into what is typically the brown wire would do the trick. Colors aren't always true to function so it would be a good idea to test the wire functions with a circuit tester like # PTW2993 to make sure it you're connecting to the right wire.

expert reply by: Robin H

Joey C.

3/20/2024

I was actually trying to get the yellow ones to flash with the turn signals and the long red leds to shine with the break lights

Robin H.

3/28/2024

@JoeyC sorry for the delay our comments weren't coming through. To do that you would need # C56196 which will allow you to separate the turn signals from the brakes.