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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Wiring the Brake Lights

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Old Jun 9, 2023 | 05:55 PM
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Flameridge's Avatar
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Wiring the Brake Lights

I am down to the final bit of wiring for my truck. I am in the process of installing the harness that runs to the taillights from the engine compartment. I need to install the wiring from the master cylinder but I am unsure where it needs to go in the cab. Does anyone have any photos or insight on how to do this portion? I do have the brake light switch wires, what else do I need? Thank you in advance.
 
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Old Jun 10, 2023 | 01:53 AM
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66F250_4x4
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I installed an aftermarket harness and don't have great memory or knowledge of exact wiring routes and interconnection points. Someone else might have pics and better info for you. However, the schematic shows one side (wire 284) goes directly to the hot side of the flasher and the other side (wire 810) goes to the TSS (via the TSS connector).
It doesn't matter which side of the switch goes to which wire, it's just a switch and is the 'same' on both sides.
You can find this schematic at fordification.com




 
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Old Jun 11, 2023 | 10:08 AM
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I recently came across this recently and found it helpful, thanks to whoever compiled it

https://www.fordtruckfanatics.com/th...iagrams.37123/
 
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Old Jun 12, 2023 | 05:25 PM
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Flameridge
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Originally Posted by lshort
I recently came across this recently and found it helpful, thanks to whoever compiled it

https://www.fordtruckfanatics.com/th...iagrams.37123/
Th wiring diagrams have been very helpful. I am more of a person who likes to see it in the real world over reading it on paper.
 
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Old Jun 25, 2023 | 01:15 PM
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Flameridge
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From: near Portland
I have the wiring wires up to the best of my knowledge except for the emergency flasher switch. Since my blinkers still aren’t working, I need to get the working as well?

Any under the dash photos of the wiring set up would be greatly appreciated.
 
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Old Jul 29, 2023 | 04:43 PM
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Flameridge
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I figured out my brake lights and blinkers issue. There was a short in fuse box. It wasn’t obvious. I only figured it out be cause I pulled the fuse box off to look behind and the blinkers started working.

I thought my truck was fixing itself. After, replacing the fuse box, everything is working fine now. Moving on to the next project.
 
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