93 240 wagon ~265k miles yesterday turned car off and several red dash lights dimly flshed and blinked continuously + there was a buzzing sound under the passenger seat and behind the glove box. Car starts and runs fine but the only way to kill the buzz is to disconnect battery. Once car is cranked and running there are no warning lights on. I had ABS issue a few months ago but got it repaired and I think there is qan ABS fuse under the seat but not sure wahat else. Listened to the buzz with a hose and it is under front right corner under passenger front seat.