Im left scratching my head trying to figure out why the lights on my instrument cluster will not turn off.

Also the headlights have high beams but not low beams, the globes look good but how can i test to make sure its not a ground problem?

any constructive advice will be apreciated

well take the headlight out and jumper wires to it. One pin is common to ground and the other two are hi lo respectively. If both filaments work then probably time to take teh combo switch apart. Don't know what you mean about instrument cluster lights. They are on all the time there is a dimmer switch which if you go all the way down will almost shut them off. Dimmer switch on my 83 only operates when headlights are on.

Wish there was more on this thread. You can clean the contactors as described somewhere on this sight, but you may eventually lose your lights while driving. Replacement switches (new) don't seem to exist, and salvage ones usually are just as weird. I am trying to find a way around the combo switch for headlamps/running lights, but no luck yet. I just shudder at the thought of a switch sending my Z to the abyss...

For the headlights make sure the headlight relay is making full contact and clean. It is in the plastic box along with the ACC relay & fuel pump relay2 , located in front of passenger front wheelwell