Page 57 of 86
MULTIMEDIA
Fault finding - Command summary table86C
86C-56
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Command summary table
Tool command Diagnostic tool title
RZ001Fault memory
AC004Speaker test
AC021Display test
AC022CD ejection
VP002Write VIN
VP005Computer configuration
Page 58 of 86
MULTIMEDIA
Fault finding - Dealing with commands
86C
86C-57
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Dealing with commands
CLEARING
RZ001 Fault memory:
This command is used to clear faults stored in the navigation computer.
ACTIVATIONS
AUDIO tab
AC004 Speaker test:
This command is used to perform a listening test on the speakers.
DISPLAY tab
AC021 Display test:
This command is used to check that the video display is operating correctly. Three colours are displayed on
the screen: Red, green and blue, and a black mosaic on a white background.
USER SELECTION tab
AC022 CD ejection:
This command is used to eject the CD from the CD reader, and not from the CD changer.
Page 62 of 86
MULTIMEDIA
Fault finding - Customer complaints
86C
86C-61
NAV 4R
Program no.: 0000
Vdiag No.: 24
Fault finding - Customer complaints
NOTESOnly consult the customer complaints after performing a complete check with
the diagnostic tool.
NO DIALOGUE WITH THE COMPUTER ALP 1
THE SCREEN STAYS BLACKALP 2
POOR GUIDANCE/POOR LOCATION/GPS FAULT ALP 3
POOR RADIO RECEPTIONALP 4
CD READ FAULTALP 5
STUCK ON MESSAGE "LOADING GENERAL MAP" ALP 6
THE SYSTEM EMITS BLEEPSALP 7
THE RADIO DOES NOT SWITCH ON AUTOMATICALLY OR GOES OFF
AFTER 20 MINUTESALP 8
POOR/NO TEMPERATURE DISPLAY ALP 9
THE SCREEN DISPLAYS "CD0000" ALP 10
Page 63 of 86
MULTIMEDIA
Fault finding - Customer complaints
86C
86C-62
NAV 4R
Program no.: 0000
Vdiag No.: 24
NOTESOnly consult the customer complaints after performing a complete check with
the diagnostic tool.
THE 6 CD CHANGER DOES NOT WORK ALP 11
NO RADIO AND/OR CD SOUND ALP 12
SATELLITE CONTROLALP 13
FRONT PANEL BUTTON FAULT ALP 14
NO NAVIGATION VOICE MESSAGES ALP 15
THE VOLUME DOES NOT INCREASE WITH THE VEHICLE SPEED ALP 16
NO TRAFFIC INFORMATION MESSAGES APPEAR ON THE SCREEN ALP 17
THE DISPLAY ON THE SCREEN STAYS FROZEN ALP 18
Page 67 of 86
MULTIMEDIA
Diagnostic - Fault finding chart86C
86C-66
NAV 4R
Program no.: 0000
Vdiag No.: 24
ALP 2
CONTINUED
Check that the radio display appears on the
instrument panel dot matrix display (only on
Mégane).
No Yes
Check for + 12 V on connections 46M and 46N
and earth on connections 46BG, 46BH and
46BK of the connector of component 1127.
Are these tests correct?
Yes
Cut the + accessories feed (for at least 1 minute)
then re-activate it.
Is the fault still present?If the connection is faulty and there is a
repair procedure (see Technical
Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair
the wiring, otherwise replace it.
No
NoEnd of fault finding.
In the event of an intermittent
fault, contact the Techline.
YesContact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
Page 74 of 86
MULTIMEDIA
Diagnostic - Fault finding chart86C
86C-73
NAV 4R
Program no.: 0000
Vdiag No.: 24
ALP 6Stuck on message
Loading general map
NOTESOnly check the customer complaint after performing a full check with the diagnostic
tool.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Check for the cartographic map CD in component 261 (commercial vehicle: 662).
After inserting the cartographic map CD in component 261 (commercial vehicle: 662), check that the general map
starts loading:
–message "Loading general map" displayed,
–display: (after 1 minute maximum) "progress percentage" pictogram (eg.: 35 %) in the lower status bar.
Note:
Loading may take up to 15 minutes.
Do not interrupt the loading process (by ejecting CD, switching off equipment, cutting + accessories feed,
etc.).
Loading is complete when the map appears.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
NAV4R_V24_ALP6
Page 77 of 86
MULTIMEDIA
Diagnostic - Fault finding chart86C
86C-76
NAV 4R
Program no.: 0000
Vdiag No.: 24
ALP 9 Poor/no temperature display
NOTESOnly check the customer complaint after performing a full check with the diagnostic
tool.
If the temperature displayed is incorrect, refer to the interpretation of parameter PR006 Exterior temperature.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
NAV4R_V24_ALP9
Page 78 of 86

MULTIMEDIA
Diagnostic - Fault finding chart86C
86C-77
NAV 4R
Program no.: 0000
Vdiag No.: 24
ALP 10 The screen displays "CD0000"
NOTESOnly check the customer complaint after performing a full check with the diagnostic
tool.
Ensure there are no present or stored faults.
Is this message displayed following replacement
of the radio/navigation computer?
Yes
This message is displayed following replacement of
the radio/navigation computer. Enter the anti-theft
code from the old computer linked to the changer.
The changer registers the new computer's code.
If the old radio code is lost, the changer code can be
cleared using the clearing code.
To obtain the clearing code, contact the Techline.
It is necessary to enter the 6 CD changer
immobiliser code. To do this, follow the instructions
in Technical Note 5037A Code supply procedure.
NoThis message is displayed after the 6 CD
changer is replaced. The computer code
is programmed when the battery or
changer are connected.
When it is installed in the vehicle, the CD
changer is programmed with the radio
supply code.
Note:
The CD changer is supplied uncoded.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
NAV4R_V24_ALP10