2003 S type...temperature control ineffective both sides of car. Passenger side heats up blows very warm whether temp at 62 or 80. Driver side heats up blows slighty warm regardless of temp setting... If you set both to cold..both side blow cold but only on cold setting. air conditioning operates to remove condensation and at cold setting.,, is there a seperate sensor for each side that I could replace?? or more complicated?/ thanks wordman