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10-03-2019, 06:19 PM | #1 |
Registered User
Join Date: Nov 2018
Location: Huntsville, AL
Posts: 341
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No brake lights-but I have 12v at pedal switch
So, I've checked through the fuses and everything shows voltage where it should. I also have 12v on the orange wire that's in the plug on the brake light pedal switch. I first thought the switch was bad, but if I jumper across the plug from the orange to the white wire I still don't have brake lights. In theory, if there is 12v on the orange wire at the switch, jumper to the white should light up the brake lights correct? Any thoughts on what to check next, I'm kinda stumped. Thanks!
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10-03-2019, 06:39 PM | #2 |
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Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
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Re: No brake lights-but I have 12v at pedal switch
With the switch jumped, check for power at the end of the wire that runs along the frame where the bed harness plugs into it. It should be in a hole in the rear crossmember. A lot of times they have had trailer lights cobbled into them there and get corroded and wires break.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
10-03-2019, 07:56 PM | #3 |
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Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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Re: No brake lights-but I have 12v at pedal switch
Brake lights run thru the turn signal switch!
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10-03-2019, 09:20 PM | #4 |
Registered User
Join Date: Nov 2018
Location: Huntsville, AL
Posts: 341
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Re: No brake lights-but I have 12v at pedal switch
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10-03-2019, 10:23 PM | #5 |
Registered User
Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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Re: No brake lights-but I have 12v at pedal switch
First see if the 4 way flashers work. If they do the tail lamp harness and the lamps are OK. Disconnect the steering column connector. Jumper from Orange to Dk Green and Orange to Yellow.
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