Brake lights switch replacement
 

Hi. I’m a pretty inexperienced mechanic, and having troubles with my brake lights. Turn signals work as well as clearance lights. But no brake lights. It’s been intermittent but now it’s always. I think I found the switch under the dash near the top of the brake pedal arm. There is power to one connector but not the other. Can anyone give me advice on how to access the switch to replace it?

Thank you
Russ

Re: Brake lights switch replacement
 

Sorry. I have a 62 shortbed 1/2 ton GMC pickup

Re: Brake lights switch replacement
 

Brake switch is in series with the power (+) wire - so only 1 terminal is powered all the time and the other terminal is powered only when the push button is depressed by the brake pedal. You should purchase yourself a manual for your truck - very helpful for yourself.

Re: Brake lights switch replacement
 

I went and looked at my 64, I don't know if it the same (see attachment). I would unplug the two connectors. Then with a wrench, reach through the large hole and loosen the pal nut. Then unscrew the switch from it mount (you might want to count the turns so you can install the switch back in).

Hope this help.