The driver's side works correctly BOTH heater and AC but the passenger side has never worked--temp control on that side does nothing. (bought it used) Dealer says it will cost $1250 because HE SAYS the problem is with the "blend door". Have only the Haynes Manual and it says NOTHING about this. Have a factory CD on order. I was hoping it was just a vacuum hose off. Does ANYONE know anything about these?
TIA John