Ambient Temperature Sensor: Operation

The ATS is a variable resistor that operates on a 5-volt reference signal circuit hardwired from the Compass/Temperature Module. The resistance in the ATS changes as the outside temperature rises or falls. The Compass/Temperature Module senses the change in reference voltage through the ATS resistor. Based on the resistance of the ATS, the Compass/Temperature Module is programmed to correspond to a specific temperature. The Compass/ Temperature Module then displays the proper ambient temperature.