Oil Pressure And Temperature Sensor
GENERAL
Type
Oil pressure sensor: Linear Piezo resistive pressure sensor, bridge connected.
Oil temperature sensor: Temperature dependent resistor (Thermistor) of the negative temperature coefficient (NTC) type.
The sensors are integrated in the same component.
characteristic
Oil pressure sensor: -
Oil temperature sensor: The resistance between terminal #1 and #4 must be 5.7 kΩ at +20 °C. the resistance drops with ascending temperature.
TERMINAL
| Terminal connector | Control module terminal | Signal type |
|---|---|---|
| #1 | #C3:1 | Signal, oil temperature |
| #2 | #C3:2 | Power supply, +5 V (common) |
| #3 | #C3:3 | Signal, oil pressure |
| #4 | #C3:4 | Ground |
CHECK
Conditions (unless otherwise specified):
- Readings taken on loose component.
Oil pressure sensor:
Connect 5 V direct current between the sensor's terminal pin #2 and #4. Take readings between #3 and #4. The value must be 0.25 - 0.50 V.
Oil temperature sensor:
Measure the resistance between sensor's terminal pin #1 and #4, The value should be:
R = approximately 7.0 kΩ at +15 °C.
R = approximately 5.7 kΩ at +20 °C.
R = approximately 4.7 kΩ at +25 °C.
R = approximately 3.9 kΩ at +30 °C.
R = approximately 3.2 kΩ at +35 °C.