Navigator 2WD V8-5.4L DOHC VIN R (2001)
Ambient Temperature Sensor / Switch HVAC: Description and Operation
The A/C ambient air temperature sensor and bracket:
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is located in front of the A/C condenser core near the center of the vehicle.
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contains a thermistor which measures the temperature of outside air as a resistance and sends that reading to the EATC module.
