How does an ambient air temperature sensor work?
How does an ambient air temperature sensor work?
Air temperature sensors allow the Heating, Ventilation, and Air Conditioning (HVAC) Control Module to monitor the temperature of the discharge air in the HVAC ducts. The module applies 5 volts to internal input resistors that are connected to the signal circuits of the air temperature sensors.
How much does an air temperature sensor cost?
Most auto repair shops charge between $75 and $150 per hour. Air temperature sensors allow the Heating, Ventilation, and Air Conditioning (HVAC) Control Module to monitor the temperature of the discharge air in the HVAC ducts.
When to set the ambient air temperature code p0073?
Code P0073 may be set if the PCM perceives a problem with your vehicle’s ambient air temperature (AAT) sensor or the sensor’s circuit. To function properly, the CCM relies on various sensors that keep track of various factors that affect cabin climate.
What does 0 ohms mean on air temp sensor?
Either 0 ohms or infinite resistance (usually indicated by the letters OL) indicates a failed sensor. If you have a scan tool, clear the diagnostic trouble codes from memory, and see if this code returns.
Where do you put the ambient air sensor?
Usually placed in the front fascia, behind the grille, the ambient air sensor will pick up the heat from hot asphalt or concrete. That’s why the temperature sent to your instrument cluster or media screen often changes when you finally get out of rush-hour traffic or to a location where the pavement is cooler.
What is the function of the ambient temperature sensor?
It is the job of the ambient temperature sensor to measure the external temperature of the vehicle as a reference point for the computer to make calculations. The computer will continuously monitor the signal from the ambient temperature sensor and make automatic adjustments as needed to maintain cabin temperature.
Where is my ambient temperature sensor?
The Ambient Temp Sensor is located in front of your radiator, closer to the passenger side. It is not in clear view. It will be behind some of the finish trim, close to the front grill.
How does the ambient air sensor affect the AC?
As the ambient temperature sensor plays a direct role in the automated function of the AC system, when it is having a problem this may interfere with the system’s ability to cool the vehicle.
