Where is the relay under the hood that supplies the high switch for the blower for a 1996 Chevrolet blazer?

The high-speed fan relay in under the hood on the firewall left of center. If I remember correctly, there are 3 relays on the 1996. The relay closest to the passenger side is the high-speed relay. I had to replace it twice in my 1996 blazer You will propbably find that the plastic is melted slightly