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On-Board Monitor and Navigation Systems
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 vehicles
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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