Can't seem to shut off the hand brake light..any ideas?? also. My door a jar light seems to "flicker" on and off at will. Adjusted the door bolt to get rid of rattling but the light never flickered before. Ideas ???
There are door pins in each door jamb [near the top hinge, I think] that will break connection to chassis ground when the door has been closed. I'd check them to make sure the 1/4" female disconnects are secure and they're not rusty garbage. They're run in parallel, so they're effectively on the same wire. I'd start there.
Same with the parking brake. There is a switch integrated into the assembly that goes to chassis ground when the lever is pulled. It's a mechanical switch [remember, these cars are 30+ years old] and also could be filthy, rusty or faulty. Again, check the connector at the switch as well. If everything checks out there, trace the wiring back to its source. A pinched wire or short to ground through missing or damaged insulation could cause these issues.