Freelander System Description and Operation
NAVIGATION SYSTEM
DESCRIPTION AND OPERATION
87-7
Calibration
Calibration is required after initial installation or replacement of the navigation computer. It may also be necessary
after repairs to system wiring and if route navigation becomes inaccurate or fails to operate. If the navigation computer
contains an existing calibration, this must be deleted, using the garage menu, prior to running the new calibration
routine. The sensor inputs should also be checked before running the calibration routine.
Sensor Check
1 Call up the SENSORS screen on the LCD:
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If the navigation CD-ROM has not been installed before, press and hold multifunction button 1 then press
multifunction button 10.
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If the navigation CD-ROM has been installed before, use the garage menu as detailed above.
2 Drive the vehicle forwards a short distance at a speed greater than 2.5 mph (4 km/h) and ensure the road speed
counter on the SENSORS screen starts to increment.
3 Select reverse gear and ensure the direction arrows on the SENSORS screen point rearwards.
4 Ensure the GPS data on the SENSORS screen is displayed and updated.
NOTE: The GPS data will randomly display a GPS MODULE FAILURE message. This is not a fault condition, and
no action need be taken, provided the GPS data switches between the GPS MODULE FAILURE message and
actual GPS data.
5 Exit the SENSORS screen:
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If the navigation CD-ROM has not been installed before, press and hold multifunction button 1 then press
multifunction button 10.
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If the navigation CD-ROM has been installed before, press the Nav button.
Calibration Routine
1 Park the vehicle outside in an area clear of high buildings, trees etc.
NOTE: The more open the surrounding area is, the faster the system will acquire sufficient GPS satellite signals to
begin calibration. To minimise the calibration time, the vehicle should not be moved again until the calibration
ride.
NOTE: On NAS Freelanders, when the security system RF receiver is active it disrupts the GPS satellite signals.
To allow the navigation system to operate, the RF receiver is deactivated when the ignition is on. During
calibration, ensure the ignition remains on and that the vehicle is not parked next to a Freelander with an active
RF receiver.
2 Turn the ignition switch to position II. If the navigation computer does not come on, press the navigation
computer ON button.
3 If necessary, use the navigation computer multifunction buttons to enter the security code.
4 Call up the SENSORS screen on the LCD:
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If the navigation CD-ROM has not been installed before, press and hold multifunction button 1 then press
multifunction button 10.
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If the navigation CD-ROM has been installed before, use the garage menu as detailed above.
5 Turn the LH rotary control to minimum volume.
6 Wait for 30 minutes. If necessary the engine can be started.
NOTE: Land Rover recommend a minimum of 30 minutes be allowed to elapse in order to ensure that only a short
distance need be driven to achieve calibration.
7 After the 30 minutes have elapsed, ensure the navigation computer LCD shows a GPS almanac figure of 27 or
higher.
8 Start the vehicle engine and allow to idle.
9 Install the navigation CD-ROM.
10 Wait until the navigation computer LCD prompts for a language to be selected. Turn the RH rotary control to
scroll through the options, highlight the required language and press the RH rotary control to select.