I’ve got a 2012 highlander that I am told by my mechanic has a bad temperature door actuator. $1000 bucks to fix it, but he says I can probably do it myself. Fast forward to today. Got the dash all torn apart and down to the hvac box. Got the two actuators on the passenger side which I have gathered are for the recirculation door and the mode selector. Now for the temperature control.....mechanic says it’s just above the gas pedal there, but I can’t see it. Can anyone give me any insight on where it is? Does the whole hvac box have to come out? If so, what needs to be done to get that out. Kinda in over my head, I appreciate any advice.