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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Brake Switch Wiring...

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Old Apr 29, 2005 | 11:13 PM
  #1  
Almost_A_Merc's Avatar
Almost_A_Merc
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From: Rapid City SD
Brake Switch Wiring...

Well it's been a while since I've been able to work on my truck, tonight I've been trying to sort out a whole mess of wiring...

I need someone to look under their dash (preferably a 68 f100) at the brake light switch. I have two wires that are hanging cut under the dash. A red and a red with a black stripe... both look like they run that direction. One has 12v on it all the time, the other does not, it would be a big help to know for certain that these are the right ones...

Thanks
David

ps-For those that are going to suggest just trying it, I already have! The Turn Signals work fine, someone had previously hacked a trailer brake controller in and I just want to go back to how it should have been.
 
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Old Apr 30, 2005 | 08:09 AM
  #2  
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jowilker
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From: Creedmoor, North Carolina
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David, The simplest thing to do would be to touch the two wires together and see if the brake lights come on. Got to be a real give away.

John
 
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Old Apr 30, 2005 | 10:51 AM
  #3  
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From: Rapid City SD
Originally Posted by jowilker
David, The simplest thing to do would be to touch the two wires together and see if the brake lights come on. Got to be a real give away.

John
I guess I didn't make my "PS" clear enough... I've done that, and get no results. The reason I'm asking the question is to establish that I am working with the correct part of the wiring harness and that from the factory these two wires simply were connected on either side of that switch...

Thanks though,
David
 
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Old May 1, 2005 | 11:49 AM
  #4  
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jowilker
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From: Creedmoor, North Carolina
Club FTE Silver Member

David, I turned to my 66 Shop manual on CD, and for the brake switch wires there is red-black & red with red going to the flasher.

John
 
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