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Home >> Chrysler >> 2007 >> Aspen 2WD V8-4.7L Flex Fuel >> Repair and Diagnosis >> Heating and Air Conditioning >> Ambient Temperature Sensor / Switch HVAC >> Description and Operation >> Overhead Module >> Operation
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Operation






OPERATION

The ambient temperature sensor is a variable resistor that operates on a five-volt reference signal sent to it by the A/C-heater control. The resistance in the sensor changes as temperature changes, changing the temperature sensor signal circuit voltage to the A/C-heater control. Based upon the resistance in the sensor, the A/C-heater control senses a specific voltage on the temperature sensor signal circuit, which it is programmed to correspond to a specific temperature.

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