- #Outside temp update
- #Outside temp full
if the vehicle is driven over 33 km/h (20 mph) continuously without the vehicle speed dropping below 33 km/h (20 mph) for approximately 90 seconds. The outside air temperature display in the IPC updates in the upward (hotter) direction under either of the following situations:
#Outside temp update
This update strategy is used because the PCM is unable to determine whether the increase in temperature is truly from an ambient temperature rise or by heat generated from the engine compartment. For this reason the outside air temperature value displayed in the IPC does not update in the upward (hotter) direction under 33 km/h (20 mph). The BCM sends the air ambient temperature filtered message to the IPC over the MS-CAN.ĭue to the location of the Ambient Air Temperature (AAT) sensor in the front grill area, it is greatly influenced by heat generated from the engine compartment at low vehicle speeds and at engine idle. The PCM filters the Ambient Air Temperature (AAT) input and sends the BCM the air ambient temperature filtered message over the HS-CAN. The PCM provides a reference voltage to the Ambient Air Temperature (AAT) sensor and monitors the change in voltage resulting from changes in resistance as determined by outside air temperature. The Ambient Air Temperature (AAT) sensor is hardwired to the PCM through separate input and return circuits. The Ambient Air Temperature (AAT) sensor provides the Ambient Air Temperature (AAT) data used for the outside air temperature display in the IPC. It is from the 2013-2014 Ford Escape Repair Manual, but the Ambient Air Sensor is the same part # as the 2016 Edge.
Earth: Trying to receive a signal through a hill is difficult.Ok, found this on another site. #Outside temp full
Vegetation is full of moisture and reduces signal. Electrical wires (utilities, cable etc.). Transmitting antennas (ham radio, emergency dispatch center, airports, military base etc.). Stucco is held to the wall by a metal mesh, thereby creating interference. Metal will absorb the RF (radio frequency) signal. Sometime a simple relocation of the transmitter or the Indoor station will correct the interference issue. Consider items in the signal path between the transmitter and the Indoor display. Interference Considerations/Sources of Interference This significantly reduces the effective range. 
Do not mount the transmitter on a metal fence. When considering the distance between the transmitter and the Indoor display cut that distance in half for each wall, window, tree, bush or other obstruction in the signal path. Obstacles such as walls, windows, stucco, concrete, and large metal objects can reduce the range. Consider the distance the Indoor display is located away from other electronics in the home. Consider what is in the signal path between the Indoor display and the transmitter. Some are over 200-feet (60 meters) open air. Some units are 100-feet (30 meters) between the outdoor transmitter and the Indoor display. Check the maximum transmitting range in open air for your unit on it's product page. Move the transmitter to different locations outside to find a location where the Temperature reading will hold. If the Temperature remains visible while in the house then it is likely a distance/resistance issue. Observe to see if the Temperature remains on consistently for 1-hour. 
After 15 minutes if there is a reading in the outdoor temperature area, move the transmitter to another room with one wall between the transmitter and the Indoor display. Complete a basic restart with the transmitter and indoor station both inside and 3-6 feet apart to establish a strong connection. Place the transmitter in the freezer for an hour and watch the temperature drop on station. Freezer test: Confirm the station is reading the correct outdoor transmitter. Fresh Batteries can often resolve connection issues. Reorientation of the Indoor display 90 degrees towards the outdoor transmitter may provide better reception. This can happen if more than one sensor is in the area and the station locks into a distant sensor first. The unit may be reading the sensor on a different channel. Move the outdoor transmitter to a closer location. If transmitter signal is lost, please wait 2-4 hours for the signal to reconnect on its own. This can be normal in some environments (e.g. RF (radio frequency) communication may come and go occasionally. Intermittent temperature readings are generally due to location of the sensor in relation to the indoor display.
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