9-3 FWD (9440) L4-2.0L Turbo (B207R) (2009)
One pin is grounded internally in the control module and the other supplied with 5V via a resistor of 6.8 kohms built into the control module. The
characteristics of the NTC resistor mean that the resistance falls as the temperature rises. This means that the voltage measured over the resistor will fall
at the same time as the temperature rises. The power supply from the sensor is A/D-converted and then available in digital form. The digital voltage is
then converted to temperature and stored in the control module working memory. A voltage value of almost 0 or 5V is interpreted as a fault in the circuit.