Workshop Manuals Factory service & repair Land Rover
01 Freelander 2001 TO 2004MY Onwards Workshop Manual - System Description and Operation - 5th Edition - NAS02 03 04 05 06 07 08 ENGINE - K SERIES KV609 10 11 12 EMISSION CONTROL - K SERIES KV613 14 15 16 17 18 19 ENGINE MANAGEMENT SYSTEM - SIEMENS20 FUEL DELIVERY SYSTEM - K SERIES KV621 22 23 COOLING SYSTEM - K SERIES KV624 25 MANIFOLD AND EXHAUST SYSTEM - K SERIES KV626 27 INTERMEDIATE REDUCTION DRIVE28 AUTOMATIC GEARBOX - JATCO29 DRIVESHAFTS30 31 REAR AXLE AND FINAL DRIVE32 STEERING33 FRONT SUSPENSION34 35 REAR SUSPENSION36 37 BRAKES38 RESTRAINT SYSTEMS39 HEATING AND VENTILATION40 41 AIR CONDITIONING42 43 44 WIPERS AND WASHERS45 CONTROL UNITS46 47 COMMUNICATION DATA BUSES48 49 SECURITY50 51 52 WINDOWS53 54 55 DRIVING AIDS56 NAVIGATION SYSTEM57 58 INSTRUMENTS
Land Rover Freelander System Description and Operation56 · NAVIGATION SYSTEM
56 · General

Remote Control Interface Unit

Make
Land Rover
Model
Freelander System Description and Operation
Section
Description › Remote Control Interface Unit
NAVIGATION SYSTEMRemote Control Interface Unit
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NAVIGATION SYSTEM

DESCRIPTION AND OPERATION

87-9

Reset
If the navigation system malfunctions, a system reset can be triggered by simultaneously pressing the TP button and 
multifunction button 1 or 3. The navigation CD will need to be installed after the system reset.

Steering Wheel Switches
The steering wheel switches provide remote control operation for some of the navigation computer functions. The 
switches can be used to select between the radio/CD/navigation modes, to adjust the volume (in all modes) and to 
select search/preset up/down for radio and CD operation.

Remote Control Interface Unit
The remote control interface unit converts the analogue signals from the steering wheel switches into digital signals 
for use by the navigation computer. The remote control interface unit is installed in a plastic bracket immediately in 
front of the gear selector lever.

The radio remote switches form a resistance ladder between two wires with the resistance across wires dependent 
on which switch is pressed. The remote control interface unit monitors the two wires and converts their input into 
Instrument (I) bus protocol messages, which it outputs on a dedicated serial link to the navigation computer.

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