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The brakes on my trailer won't work with the wiring harness on my truck.

Tiny
TERRY COX
  • MEMBER
  • 2001 GMC TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 115,000 MILES
I have brake lights on my 2001 GMC Sierra, but I can not get brake lights on my boat trailer. I have a factory installed wiring harness. I have checked the fuses. I have power coming into the brake light switch with the orange wire and power going out through white wire only when brake pedal is depressed. Is this correct?
Thanks,
Terry
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Thursday, May 12th, 2011 AT 1:40 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
That's correct-check and test the vehicle stop fuse it goes thru there when the brake pedal is depressed
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Monday, July 18th, 2011 AT 8:38 AM
Tiny
HARLANDHARLAN
  • MEMBER
  • 9 POSTS
Ground trailer to truck
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Monday, November 26th, 2012 AT 3:31 AM

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