Semi Truck Hazard Warning & Turn Signal Flashers

93 Saab 9000 w 300,000 miles, had problems w emergency flasher working. Checked left and right turn signal relays and both worked. Selected emergency flash switch and nothing happened. Replaced switch. Still didn't work. Replaced the multi-function flash relay and all works now. New part is exact replacement for old part. No off brand named part. Note: when problems evolve in older cars, start thinking about fuses first, then relays getting old and failing. Ordering was easy, checkout fast and delivery fast as well.