2001 Torota Highlander AC

Hi. I have a 2001 Toyota Highlander v6. The ac quit working. The car started misfiring when the ac was on, then the ac light started blinking. I tried the relay but that did not fix it. So, I read in a post reply by @SteveC76, that the ac codes can be seen by holding down the recycle and auto buttons when starting the car. My code is a 43. Can Stevec76 or anyone else please help me diagnose this? Thank you!