I have a 1999 Solara SLE with a climate control problem. The system only blows air through the dash vents regardless of the "mode" setting. Fan works fine (all speeds), temperature is good (hot/cold air when appropriate for temp setting) I can hear a servo running when I run the system through its self check (recirc/auto buttons pressed) but the air does not change direction (only blows through dash vents) no floor or defrost.
The servo that is running is just above the gas peddle, it's small and rectangular with one actuator connected to it. It is moving and the arm it's connected to is also moving.
There appears to be another, larger controller above it with a large white plastic "gear" connected to several actuators, it does not move during the CC "self check"
I am getting a code 23 from the control panel.
Last week, the system started working fine out of the blue, it lasted for about 3 days and now it's back to blowing out of the dash vents only.
Is this actuator integral to the heat box? (can it be replaced without buying the entire heat box assembly?) Does the entire dash have to be disassembled to get access to it? (just trying to guestimate how much beer to buy LOL)
Well, at least it's (hopefully) not the heat box assembly ($$$)
Thanks, XXXXX XXXXX the dealer for the part and clear a weekend to dig into this thing