What is APS on a car?

[DelMatthew]

APS (Accelerator Position Sensor) is the accelerator pedal position sensor, which functions as follows: 1. When the driver operates the accelerator pedal, the accelerator pedal position sensor generates corresponding voltage signals that are input to the throttle control unit, thereby controlling the throttle opening. 2. When there is a significant difference between the actual temperature inside the car and the set temperature, it switches to recirculation mode to quickly adjust the interior temperature to the set temperature. 3. Once the interior temperature reaches the set temperature, it continuously monitors the outside air quality. When the outside air quality is good, it automatically switches to fresh air mode, and when the outside air quality is poor, it automatically switches back to recirculation mode.