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94 Suburban plugged in a trailer now my hazard and brake light don't work. Replaced all possible relays still have the same problem.

Posted by Anonymous on

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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jschoon77
  • 55 Answers

SOURCE: 2007 Nissian Frontier trailer lights

There should be a 30 AMP mini blade fuse in the fuse box under the hood that you are probably missing. I assume that since you got the relays with the wiring kit, that you got the kit from a Nissan dealer. If that is true, there should be a fuse in the kit also- in a sealed bag that has the "trailer wiring harness owner's manual" in it.


Hope this is helpful!


Nissan Scope Technician- 10+ years experience in Nissan dealership.

Posted on Nov 04, 2008

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redbeard00
  • 957 Answers

SOURCE: 98 Suburban Brake and hazard lights don't work

Check for power and ground at the two panel lights. GM uses a cheep circuit board design, they overheat and corrode on the other side of the board. not serviceable.

Posted on May 03, 2009

  • 834 Answers

SOURCE: Trailer wiring problem. Tow vehicle is a 2008

Most likely the brown wire from the trailer connector is connected to a constant battery voltage source, and it should be connected to the vehicle running light circuit, however someone might have wired the trailer connector up that way on purpose so that the trailer does not draw power from the vehicle running lights and possibly damage the vehicle running light circuit. (Dodge/Chrysler vehicles do have delicate lighting systems) Here are some images to help assist you, and the 4 way connector is the same as the 5 way connector just without the blue wire for the trailer brakes.


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Posted on Jul 06, 2010

  • 1 Answer

SOURCE: 98 silverado no brake lights

Just a thought but you may want to look at your multifunction lever. The brake lights have a contact in there and it may be bad. Not uncommon so I have been told. I replaced mine but be warned the multifunction lever will set you back almost $200

Posted on Aug 06, 2010

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