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Structure and inner electrical connection

The charging pressure sensor is connected by means of a 4-pin plug connection.

The sensor is supplied with 5 Volts by the engine control.

Fig 1: Charging Pressure Sensor - Circuit Diagram
G09872311Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Charging pressure sensor
PIN REFERENCE

Pin Explanation
SIG Charging pressure signal
5 V 5 Volts, supply voltage
Kl. 31E Terminal 31, electronics earth (ground)