GMC Repair: 1995 buick centry electrical, rear defroster, chevrolet celebrity


Question
I turned on rear defroster with car running and headlights on
, In few seconds doorlocks, headlights, brake lights, hazards, interior lights, power seats, and reverse lights stopped working, and hassnt worked since. Windows, blinkers,radio, and engine are working properly. Can u help me

Answer
Sounds like this:

Windows, signals, radio, and engine are on the front of the interior harness. Door locks, headlights, brake lights, hazards, interior lights, power seats, and reverse lights should be on the rear interior harness. Sounds like from the defroster element to the wiring harness has had abrasion that damaged the insulation in the wire. I would pull the rear seat, rear deck and look for the slightest damage. You can attempt to repair by splicing in a piece of 8-10 gauge wire or replace the rear section of the harness. That is what I would do. If you are not the original owner, there is only speculation of how that came to be damaged. I have had that problem with a 1987 Chevrolet Celebrity Eurosport.