F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
Ambient Temperature Sensor / Switch HVAC: Description and Operation
The ambient air temperature sensor:
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is attached to left side of the grille opening panel to the left of the A/C condenser core.
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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.
