GF27.19-D-4019H Transmission Oil Temperature Sensor, Component Description

GF27.19-D-4019H Transmission Oil Temperature Sensor, Component Description
- TRANSMISSION 722.6






2a Valve body of shift plate

Y3/6 Electrical control unit
Y3/6b1 Transmission oil temperature sensor

Location

The transmission oil temperature sensor is located in the electric control unit and is rigidly connected to the conductor tracks.

Task

Measures the temperature of the transmission oil and passes the temperature to the ETC control unit (N15/3) as an input signal.

Design

The transmission oil temperature sensor consists of a temperature dependent resistor with a positive temperature coefficient (PTC).





Y3/6b1 Transmission oil temperature sensor

Function

The temperature of the transmission oil has a major influence on the shift time and thus on the shift quality. It is possible to optimize the gear shifts in all temperature ranges by detecting the oil temperature.

The transmission oil temperature sensor is connected in series with the starter lockout contact (Y3/6s1). The temperature signal is only conveyed to the ETC [EGS] control unit when the dry-reed contact of the starter lockout contact is closed.