check the earth connection at the lamp clusters
The 1992 GMC parking brake release lever can be found on the bottom of the dashboard. Pulling the lever towards the passenger compartment will release the parking brake.
Check to see if the parking lights and tailights are working - if not may be a fuse (same circuit)
adjust you dimmer switch
Why do the blinkers not work on a 1992 Harley Fatboy Bike
Brake and parking lights? Are you sure, the two aren't interconnected. Maybe it's just the brake light. If so, sounds like a bad brake light switch. If you step on the brakes and the brake and parking (sometimes called running lights) lights come on it sounds like you have a real problem. Suggest you have it checked right away.
Check fuse for tail and parking lights Could be a bad dimming rheostat Could be a bad headlight switch
you need to replace blinker can in your vehicle. the flashers and blinkers have separate flasher cans which is why your flashers still work but not your blinkers
Sierra Tonante was created in 1992.
Fuse or 4 way flasher unit there are 2 flashers on for turns one for 4 ways
Check fuse that controls parking/tailights check dimmer rheostat check headlight switch go to the local ford dealer ship and buy new dash lights
I would assume that there is a relay for the parking lights. It sounds like the relay has frozen with the contacts closed. Replacing this relay should solve the problem.
The license plate light fuse. It's a 10A fuse if I remember correctly. Sounds crazy, but I had no running lights and no lights other than warning lights on my instrument panel and it took me forever to figure it out. Apparently that whole circuit runs off of that one fuse. I have a 2000 Honda Accord, but I would assume it would be the same for a 1992.