2001 Toyota Highlander Q&A

2001 Toyota Highlander Question: No heat or cooling at all now; was sporadic. Any ideas on what to fix & cost?

Heater and AC no longer work - was sporadic but able to fix sometimes (not always) by twisting knob for temperature and getting it in the "right" place. Then left it exactly there and only used on/off. But now nothing works except the fan does blow current temperature air. -
Answer 1
sounds like the controller contacts are bad inside the dash controls. seek a diag and est as not to waste $ -
Comment 1
Toyota's diagnostic revealed the need for climate control unit (parts & labor $1025). Is that reasonable for a dealer? -
Comment 2
WHAT IS THE BREAK DOWN OF PARTS AND LABOR -