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Eccentric shaft sensor

The eccentric shaft sensor works according to the magneto-resistive principle. Specifically, a ferromagnetic conductor changes its resistance due to the influence of a magnetic field. The sensor is designed with redundancy. Both sensor elements are contained in a single housing.

Fig 1: Identifying Eccentric Shaft Sensor And Plug Connection
G10004274Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Eccentric shaft sensor
2 9-pin plug connection

One sensor element performs the executive function, while the second monitors. The sensor elements are designed to deliver opposing values. When the eccentric shaft moves from minimum to maximum stroke, the executive sensor delivers rising angle values while the reference sensor delivers falling angle values. The sensor elements are supplied with a 5 V voltage and ground by the DME. All lines to the sensor are shielded separately.