BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53 Bedienungsanleitung PDF herunterladen (Seite 5)

Mk-3 navigation

GPS (Global Positioning System) Receiver

The GPS receiver module of the previous Mk-2 system is integrated into the housing of the

Mk-3 computer, further reducing the complexity and the number of components used in

the system. The receiver is not serviceable.

The GPS receiver is responsible for receiving the satellite signals and providing the vehicle’s

position information to the navigation computer.

Information provided by the GPS receiver to the navigation computer can be displayed in

the service mode (see workshop hints) but is not typically used in diagnosis.

Gyro (Rotation) Sensor

The navigation computer contains the electronic (piezo) Gyro sensor that detects rotation

(yaw) of the vehicle as a confirmation that the vehicle is turning. The signal provided by the

gyro is a mili-voltage that changes as the vehicle rotates. The navigation computer uses

the input to track the vehicle along the digitized map and display the exact vehicle position.

The signal is available in the sensor test page of the service mode for diagnosis. The

sensor is not a separately serviceable item and does not require calibration.

Mk-3 computer

GPS antenna

connection

18 pin ELO

connectors:

X1313: Violet

X1312: Blue

Integrated GPS receiver and Gyro (rotation) sensor

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BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53 Bedienungsanleitung Seite 5