Drives Side Brake Light not working?

[93 K1500]

Did you hook the pass side up on the drivers side let it hang off the side use a broom or a paint pole to push the brake and see if it works????

 

[1Kurgan1]

I finally had the time to work on the truck a bit and did that. Same results, still no actual brake light, but blinker and night lights work.

 

[1Kurgan1]

bump, any ideas?

 

[jdyates]

Drop your spare tire, crawl under there and check all the wires. Also, pull off BOTH taillights and check the wires going into them. I had a massive problem with my turn signals where they would blink really fast and the time in-between blinks was REALLY looooong. Turns out, my uncle (previous owner of my truck) neglected to tell me that he "fixed" a bad ground in the passenger-side taillight. Sure enough, i pulled the taillight off and the ground had exposed wiring and was corroded to ****. Amazing how something such as electrical tape coming off could f*ck your whole rear-end's wiring.

 

[1Kurgan1]

Truck didn't have a box on it or a rear tail light wiring hardness when I got it. Put those in myself, attached a ground to the drive side of the frame. But I noticed the other day, I have no reverse lights... unless I am in neutral. Is there some sort of electrical box that controls lights that could be bad, I know my old Taurus had one. Otherwise reverse lights in neutral seems weird. I'm hoping both the problems are related.

I have tested all the wires back at the tail lights and they all receive power. The blinkers/brakes run off the same wire, but for some reason driver side brake light don't work, just blinker and hazards do.