PONTIAC RUNNING LIGHT NOT WORKING

Help My Left Tail Light Won't Blink Or Get Brighter When I Put On The Brakes And I've Replaced The Light Numrous Times. It Still Won't Work...

I Have A 1997 Grand Prix Gt 3.8l And The Cruise Control, Fog Lights And Brake Lights Stopped Working Within 100 Miles. The Brake Lights...