93 Acura Integra shorts

I drove my 1993 manual Acura Integra when ever i hit the brakes or turn on the headlights on High beam or Low Beam or flash to pass the temperature guage will spike and the car shuts off and I can’t start it so I disconnect the brake switch car started up and I drove home. Now any time I drive the car the car it will shut off and the temperature gauge will spike I checked oil level I have checked alternator I have checked the Coolant sending sensor and everything is fine but I can’t seem to locate the electrical short