Engine Oil Temperature Sensor
FUNCTIONS WITHIN THE SYSTEM
The engine oil temperature signal that is received from the oil temperature signal is used by the ECM for valve timing control.
INDIVIDUAL FUNCTION WITHIN THE SYSTEM
The engine oil temperature sensor detects the engine oil temperature, converts it to an output voltage, and transmits a signal to the ECM.
INDIVIDUAL OPERATION
The engine oil temperature sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
Reference data
| Temperature [°C (°F)] | Voltage* (V) | Resistance (kΩ) |
|---|---|---|
| -10 (14) | 4.4 | 7.0 - 11.4 |
| 20 (68) | 3.5 | 2.37 - 2.63 |
| 50 (122) | 2.2 | 0.68 - 1.00 |
| 90 (194) | 0.9 | 0.236 - 0.260 |
| 110 (230) | 0.6 | 0.143 - 0.153 |
*: These data are reference values and are measured between ECM terminals.
COMPONENT LOCATION
The engine oil temperature sensor is installed to the cylinder block.