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

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.

by in Wynnewood, PA on November 07, 2012
1 answer 2 comments
ANSWER by on November 08, 2012
sounds like the controller contacts are bad inside the dash controls. seek a diag and est as not to waste $
COMMENT by on November 09, 2012
Toyota's diagnostic revealed the need for climate control unit (parts & labor $1025). Is that reasonable for a dealer?
COMMENT by on November 09, 2012
WHAT IS THE BREAK DOWN OF PARTS AND LABOR