BMW E38 2001, Руководство пользователя, Страница: 56 / 77

MARK II NAVIGATION COMPUTER
Though the front bezel is identical to Nav computer of
Mark I system, the Mark II Navigation computer is an
different new component.
Standardized ELO connectors replace the “blade
type” connectors of the Mark I system. This ensures
circuit integrity and allows simplified 26 pin breakout
box connection for diagnostic purposes.
The expanded capabilities of the Mark II Nav comput-
er has made it possible to delete the following required
connectors of the Mark I system:
• the magnetic field sensor input connector,
• the ARCNET triaxial connector,
• the 3 amp fuse has also been deleted.
INTEGRAL ELECTRONIC PIEZO GYRO SENSOR
The nav computer contains an elec-
tronic gyro sensor that detects
changes in the vehicle’s driven direc-
tion (changes in vehicle yaw). Similar
to the Rotation Rate Sensor of the
DSC III system, the gyro sensor mea-
sures the motion of the vehicle on it’s
vertical axis.
This is an internal component of the
Nav Computer. It is not serviceable
nor does it require calibration.
Do not open the Nav computer, this will void it’s warranty. Photo is only intended to pro-
vide functional understanding
The gyro sensor provides status of vehicle turning maneuvers in the form of a changing voltage
signal that the Nav computer uses as an input signal.
The Nav computer requires the gyro sensor’s input signal along with the digitized map CD, the
vehicle speed signal, and the GPS signals together to calculate, continually update and display
the exact vehicle position on the LCD.
MAG FIELD SENSOR CONNECTOR
ARCNET CONNECTOR 3 AMP FUSE
GYRO LOCATION
ELO
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On-Board Monitor and Navigation Systems