While waiting for my new AC relay from Rockauto I pulled the fuse panel cover from our '02 ES300. I don't see any relays marked AC on the chart. There's a 10 amp fuse marked AC but no relay. I was told that it's the same relay as used for the horn. I see the horn relay but the similar sized relays are EF1, C/OPN, and Fan no 1. What am I missing?

 

"MG CLT"

Magnetic clutch - for the a/c clutch inside the compressor. Agree, it is not obvious. The replacement relay will be a different shape (shorter and silver/grey if like mine).