Do Trailer Running Lights and Brake Lights Run on Same Circuit

Question

Question:

I have no running lights on my trailer and have traced it down to find out they are connected to the trailer brakes some how and i need to figure out a way to bypass this so my lights work and i can get home

asked by: John T

0

Expert Reply:

Your brake lights and running lights are designed to be operated by two different circuits. You'll need to find the running light circuit in your trailer's wiring and then you'll need to run that circuit to the running light assemblies you have. I attached a picture of a wiring diagram and a link below on trailer wiring for you to check out as well.

expert reply by: Jameson C

0

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Answer 1

If I understand you correct you have a trailer with separate turn signals and brake lights that aren't functioning properly because you 2013 Ford F-150's trailer wiring combines those signals on one circuit. If I'm wrong let me know. If…

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Answer 2

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 3

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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Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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