i have a 1995 k1500, none of the running lights or dash lights work

the headlights, brake, and turn signals all work fine

could this be my brake light switch?????

I can't seem to find a good diagram on it

sounds to me more like the headlight switch

that's what I thought too, when it first started doing it you could mess with the dimmer control and they would come back on

so I replaced it with a switch from the factory

you checked the fuses?
The brake light switch has absolutly nothing to do with the tail lights.

one of the wires on the connector on the back of the headlight switch was not making good a connection, all has been fixed for free:ww:

ahh so i was right, well it did have to do with the headlight swtich kinda sorta LOL