heating control valve on 2001 Toyota Celica

where is the heating control valve located on the 2001 toyota is it vaccuum or mechanically???

Asked by for the 2001 Toyota Celica
There is no heater control valve listed in the parts listings that I have but there is a heater control unit listed. that is where I would focus my inspection of your issue.
1 more answer
Heater valve I believe is in the engine compartment center rear on the firewall operated by a cable two hoses attached to it approx 3/4 inch diameter.