Operation

OPERATION

The ambient temperature sensor located below the front bumper is a Negative Temperature Coefficient (NTC) thermistor. The internal resistance of the sensor is reduced as the ambient temperature rises. The BCM continually monitors the resistance through the sensor to determine the temperature value to be displayed. The current value is displayed immediately after the display unit is activated. The display value will remain static regardless of decreases in the sensor resistance (temperature rising) below vehicle speeds of 10 to 15 kilometers-per-hour (6 to 9 miles-per-hour). Decreases in the sensor resistance above 15 kilometers-per-hour (9 miles-per-hour) and increases in the sensor resistance (temperature falling) regardless of vehicle speed are displayed subject to a sixty second delay.