MKIII DImmer Switch
 

My sister in law bought her son a 87 N/A Supra for his graduation. It seems good at first but some bugs have turned up. It was not run much in a while. The most difficult thing is the battery kept going dead. She was told it is the dimmer switch. The high beams stay on all the time and will not turn offand remain on after the car is turned off. I am trying to source a switch, whitch I also believe to be the headlight switch.
Does anyone have one they are willing to sell or know of where I can get one. Would really like to get this issue fixed.