Originally Posted by superdave
spin your head light switch back and forth, mine acts up too. it should go from dim to bright.
for those of us that are Old school that was always the way to turn up and down the dash lights, rotating the eadlight switch knob.. the rheostat inside the switch gets nasty over time and sometimes spinning it all the way back and forth stop to stop a few times gets it going again... otherwise its a readily available part and cheap to get a new one. hardest part is getting the knob off..
also the IHC dashboards depending on year used the WORST design for lamp holders known to man.. that had little plastic tabs which broke off and then the lamp no longer made contact with the board.. they were little gray or black 1/4 turn twist-ins on the back of the cluster.. I dont know if those were still used in your year or not..