In-Car Temperature Sensor: Operation
WARNING: This page is about a different car, the 2004 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.
Air from the passenger compartment flows over the thermistor of the in-car temperature sensor. The thermistor changes resistance with air temperature. The ATC A/C-heater control measures this resistance and calculates the temperature of the air. The A/C-heater control then makes adjustments to maintain the selected passenger compartment temperature.
The in-car temperature sensor cannot be adjusted or repaired, and if faulty or damaged, the A/C-heater control must be replaced (Refer to REMOVAL ).