Transmission fluid temperature sensor
| Transmission fluid temperature sensor |
The fluid temperature sensor, which is fitted in the transmission casing, supplies the control module with information on the current fluid temperature.
The sensor is of NTC type, that is to say the sensor's integral resistance has negative temperature dependence. This means that its resistance decreases with rising temperature. Through an integral 1K resistor, the transmission control module measures the temperature of the transmission fluid by applying +5 V to the sensor from pin 33.
The sensor is grounded at grounding point G34S, car body ground.
The control module uses the information on the temperature to calculate shifting points and engagement of the lock-up function.
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