Engine Oil Temperature Sensor
The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
|
Engine oil temperature [°C (°F)] |
Voltage * (V) |
Resistance (kΩ) |
|
-10 (14) |
4.29-4.50 |
7.0 - 11.4 |
|
20 (68) |
3.48-3.58 |
2.37 - 2.63 |
|
50 (122) |
2.03-2.49 |
0.68 - 1.00 |
|
90 (194) |
0.97-1.04 |
0.236 - 0.260 |
|
110 (230) |
0.63-0.67 |
0.143 - 0.153 |
*: These data are reference values and are measured between ECM terminals.