I have a 96 HB and my instrument panel and ac/heater lights went out. It happened when I hooked up a friends trailer to my truck. First, when I was testing the blinkers, it was very slow for the left signal and normal for the right.
For a little background....the previous owner had put a camper shell on the truck and put a switch in the cab that controls the light in the camper shell. He told me not to worry about it because it doesn't work
I took the camper shell off so the wires for the light in the camper shell are disconnected now.
Back to my problem. So, when I was driving the trailer around the corner, I flipped the switch that the previous owner told me didn't work. My dash lights went out, but my blinkers worked fine.

I figured I'd replace the lights in the instrument panel, which I did, but still nothing. Before I spen money on a new dimmer switch, I thought there was a fuse or something simple I'm overlooking <fingers crossed>
For a little background....the previous owner had put a camper shell on the truck and put a switch in the cab that controls the light in the camper shell. He told me not to worry about it because it doesn't work
Back to my problem. So, when I was driving the trailer around the corner, I flipped the switch that the previous owner told me didn't work. My dash lights went out, but my blinkers worked fine.
I figured I'd replace the lights in the instrument panel, which I did, but still nothing. Before I spen money on a new dimmer switch, I thought there was a fuse or something simple I'm overlooking <fingers crossed>