Heated Seat Element - Operation

OPERATION

The heated seat elements resist the flow of electrical current. When battery current is passed through the elements, the energy lost by the resistance of the elements is released in the form of heat.

The rear heated seat temperature sensor is a Negative Temperature Coefficient (NTC) thermistor. When the temperature of the rear seat cushion cover rises, the resistance of the sensor decreases. The rear heated seat module supplies five-volts to one side of each sensor, and monitors the voltage drop through the sensor on a dedicated hardwired return circuit. The module uses this temperature sensor input to monitor the temperature of the seat cushion, and regulates the 12v current flow to the heated seat elements accordingly.