Page 9 of 86
MULTIMEDIA
Fault finding - List and location of components86C
86C-8
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - List and location of components
Steering column control
Rear speakersFold-out unit
Aerial coaxial cable
Front speakers
Page 10 of 86
MULTIMEDIA
Fault finding - List and location of components86C
86C-9
NAV 4R
Program no.: 0000
Vdiag No.: 24
Aerial
Display
Fold-out unitFront tweeter speakers
Instrument panel with dot matrix display
Page 11 of 86
MULTIMEDIA
Fault finding - List and location of components86C
86C-10
NAV 4R
Program no.: 0000
Vdiag No.: 24
Radio/navigation computer
6 CD changer
Page 12 of 86
MULTIMEDIA
Fault finding - Operating diagram
86C
86C-11
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Operating diagram
Layout of the main components of the 4R Radio Navigation system
Video screen fold-out
unit (Only on Mégane II
phase 2)GPS aerial
Diagnostic socket
CD multi-changer (optional)
Instrument panel
(Dot matrix display)
(Only on Mégane II phase 2)
Display 4R Radio
Navigation computerDepending on the vehicle
–Thermometer
–Speed signal
–Seat belt warning light
–+ side light feed
–Radio aerial
Steering wheel radio
satellite control
Speakers
- Multimedia multiplex network
- Wire connections
Page 13 of 86

MULTIMEDIA
Fault finding - Functions
86C
86C-12
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Functions
General operation
The NAV 4R system includes the following functions:
●CD multi-changer (according to options).
●Satellite guidance navigation.
●Display (according to options).
●External thermometer.
●Clock.
●Audio.
●Seat belt warning light (Laguna II only).
1 - CD multi-changer
The CD multi-changer located on the dashboard can hold up to 6 CDs. Audio CDs and CDs recorded by the
customer may be played.
The CD changer does not play MP3 CDs.
2 - Navigation
This function guides the driver by displaying maps and issuing voice messages. The addresses for guidance are
entered using the keypad.
3 - Display
The display is used to show information such as navigation maps, radio, CD title (MP3 CDs optional), time,
temperature, etc.
4 - Thermometer
The 4R central communication unit may display the exterior temperature via:
–the UCH (only on Mégane and Scénic II phase 2),
–the sensor located on the right-hand door mirror (other vehicles).
The temperature is also transmitted to the climate control computer. This parameter can be viewed using parameter
PR006 External temperature.
5 - Clock
This function allows the time to be displayed on the video screen.
6 - Audio
Two audio systems are available:
–Standard 4X15 W,
–Cabasse 4X40 W.
These systems enable the user to listen to AM/FM radio, CDs (MP3 CDs optional with the Cabasse system) and
satellite navigation voice messages.
7 - Seat belt warning light (Only on Laguna II phase 2).
Seat belt warning light lit on the display.
Page 14 of 86

MULTIMEDIA
Fault finding - Role of components
86C
86C-13
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Role of components
Role of main components
●Display: displays various multimedia system data such as the station selected, time, CD listing and satellite
guidance information.
●Steering column control: allows the various system functions to be used via the steering wheel control.
●Speakers and tweeters: relay the sound from the multimedia system into the vehicle.
●CD changer: enables compact discs to be loaded and music to be relayed to the tuner-amplifier.
●AM/FM aerial: receives radio signals from various transmitters.
●GPS aerial: receives various data transmitted by satellites.
●Radio/navigation computer: manages the various multimedia system functions according to user requests and
transmits audio data to the vehicle via the speakers.
●Cartographic map DVD: loads maps into the navigation computer.
●AM/FM aerial amplifier: improves the reception of AM/FM signals.
Page 15 of 86

MULTIMEDIA
Fault finding - Configuration and programming86C
86C-14
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Configuration and programming
SETTINGS
VP002 Write VIN:
This command permits manual entry of the vehicle's VIN into the computer. Use this command each time the
computer is replaced. The VIN number is inscribed on the manufacturer's plate.
Procedure for writing the VIN
●Establish dialogue with the navigation computer.
●Select the repair mode menu.
●Select the other parameters menu.
●Select line VP002 Enter VIN.
●Enter the VIN.
●Exit fault finding mode.
●Switch off the ignition.
●Wait for the end of power latch.
●Reread the VIN in the identification menu to confirm (ID011 VIN code).
VP005 Computer configuration:
This command is used to configure the 4R radio navigation computer by entering the vehicle type and the trim level.
When the command is complete, switch off the ignition, wait 2 minutes and switch on the ignition again. Check that
the configuration has registered correctly by reading configurations LC001 Vehicle type and LC005 CD changer.
The radio is in factory mode after configuration (FM 87.5 MHz in scrambled mode for 2 minutes).
PROGRAMMING
There is no programming on the navigation system.
Page 16 of 86

MULTIMEDIA
86C
86C-15
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Replacement of components
For removing/refitting the 4R radio navigation computer, refer to the MR for the vehicle concerned:
Mégane II ph2
(see MR 364 mechanical, 83C On-board telematics system, Computer: Removal - Refitting)
Laguna II ph2
(see MR 395 mechanical, 83C On-board telematics system, Computer: Removal - Refitting)
Scénic II ph2
(see MR 370 mechanical, 83C On-board telematics system, Computer: Removal - Refitting)
Trafic II ph1 and ph2
(see MR 408 mechanical, 83C On-board telematics system, Radionavigation: Removal - Refitting)
Master ph2 and ph3
(see MR 377 mechanical, 83C On-board telematics system, Radionavigation: Removal - Refitting)
Master propulsion ph2
(see Technical Note 3818A, 83C, On-board telematics system, Radionavigation: Removal - Refitting)
Operations to be carried out before replacing the 4R radio navigation computer:
1. Before replacing the 4R radio navigation computer (with Techline approval), perform a fault read and a conformity
check to confirm that it is faulty.
2. Before removing, eject the CD.
3. Following Techline approval, remove the computer, with the ignition off (wait 1 minute for the system to shut
down completely).
The 4R radio navigation computers available from the Parts Department are supplied unconfigured and with a black
screen.
Operations to be carried out before replacing the 4R radio navigation computer:
1. Configure the computer (see Configuration and programming).
The 4R Radio Navigation computer is in factory mode following configuration (87.5 MHz FM in scrambled mode for
2 minutes).
2. Enter the 4R Radio Navigation system unlocking code
Obtaining the 4R Radio Navigation system unlocking code:
–switch on + after ignition feed (see introduction),
–if the 4R Radio Navigation system does not come on when the + after ignition feed is activated, press the
ON/OFF button on the front panel,
–connect the Clip diagnostic tool,
–note the programming key number ID012 Navigation programming key indicated in the identification menu,
–Consult Renault.net with the programming key number to obtain the 4R Radio Navigation system unlocking
code. In the event of a fault, contact the Techline,
–2 minutes after the 4R Radio Navigation system is switched on, the unlocking code is requested,
–enter the code using the radio control satellite under the steering wheel.