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Speed sensor, function - GF27.19-P-5127-04G

Transmission 722.6 

Fig 1: Identifying Speed Sensor Function
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Operation 

The RPM sensors are pressed against the transmission housing (51) by a spring (49) which is held against the valve housing of the shift plate (2a). This ensures a defined distance between the RPM sensors and the exciter ring (50).

RPM sensor 2 (Y3/6yn2) records the speed of the front sun gear via the outer multiple-disc carrier of the front multiple-disc clutch (K1b) and RPM sensor 3 (Y3/6yn3) records the speed of the front planetary gear carrier via the inner multiple-disc carrier of the front multiple-disc clutch (K1c).