Cab power problem need help ASAP

[MNorby]

Fiddlin with installing CB radio and checkin fuses to see why no brake lights and bumped the non-fused side of a circut to the turn signal flasher deal. Now there is no power at all in the cab at any fuse either side. I have eliminated all the excess wiring under the hood and ran a large 10ga wire to a jnct block at the firewall then tapped back into the factory wiring that goes into the bulkhead connector into the fuse box. I have power at the jnct block but nothing part that when it goes into the cab. I haven't pulled the fuse box off the firewall yet, hoping there might be a commen problem or another fuse link or something where it come into the cab that I don't know about.

 

[MNorby]

got that one fixed, now have to figue out why no brake lights. where is the brake light switch located on these?

 

[Greg72]

Brake light switch should be tucked way up under the dash off the top of the brake pedal pivot.

 

[MNorby]

thanks, I guess thats what I get for trying to work on it in th emiddle of the night with a flashlight. Going wheelin in a few now.

 

[vtblazer]

Brake light troubles are often caused by a poor ground at the housing itself.
Check for power going out, then check for power coming in...if still no tail lights, it's the ground.
(or potentially the bulb socket)

 

[Burt4x4]

Ditto, I too had ground issues with my tail & head lights. Once I cleaned up the grounds all was good

 

[MNorby]

I have trailer LED lights back there instead of stock setup. I'll pull the switch and check for power, looked and saw it but thats as far as I got the otehr day.