The thermistor with a negative temperature coefficient is used as the main element of the fuel temperature sensor (NIC), which is part of the voltage divider circuit. The reference voltage is 5 V.
The voltage drop across the thermistor is reported to the ECM via the A/D converter (ADC). According to the characteristic stored in memory, the ECM determines the temperature as a function of voltage.
Sensor test
Check the sensor after turning the key in the ignition switch to the ON or START position.
Temperature | Resistance, kOhm |
–30°C | 22,22–31,78 |
–20°C | 13,24–18,10 |
0°C | 5,18–6,60 |
20°C | 2,27–2,73 |
40°C | 1,059–1,281 |
60°C | 0,538–0,650 |
80°C | 0,322–0,298 |
100°C | 0,185–0,167 |
120°C | 0,097–0,127 |