Question about Heating & Cooling
Need to know what thermostat you are referring to
the coolant thermostat has no connection to the ac system
if it is the ac thermostat the it maintains the cabin temperature by activating the ac compressor as required
if you are referring to climate control then that controls the heater flow to keep the ac temperature at a set temperature with the ac compressor operating all the time
so as an answer to you question , check the climate control module
Posted on Dec 31, 2016
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Posted on Jan 02, 2017
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