Well I went out and looked at it today, turn the lights on and dash goes crazy but if I turn the dimmer all the way down with the lights on the gauges go back to normal but it’s daylight so can’t tell if my dash lights are working
New guy here, got a 91 c1500 and when I turn on my headlights all of my exterior lights work I just lose all dash lights except my hazard lights stay illuminated and the high beam light on the dash but nothing else lights up and the guages will go crazy. After about 30 minutes most of the time...