Page 29 of 86

MULTIMEDIA
Fault finding - Interpretation of faults
86C
86C-28
NAV 4R
Program no.: 0000
Vdiag No.: 24
DF035
PRESENT
OR
STOREDCOMPUTER/FOLD-OUT UNIT CONNECTION
CO.1 : Short circuit or open circuit to + 12 V
NOTESConditions for applying fault finding procedures to stored faults:
Apply this fault finding procedure if the fault reappears as present or stored after it has
been cleared and the ignition has been switched off and on again.
Special note:
If the vehicle does not have a fold-out unit, check the 4R radio navigation computer
configuration (see Configuration and programming).
The screen does not deploy or there is no display on the instrument panel.
Apply the following fault finding procedure only if the vehicle is equipped with a fold-out
unit and a dot matrix display on the instrument panel (top of the range Mégane II
phase 2).
Use the Wiring Diagrams Technical Note for the Mégane II.
Check the condition and connection of the connectors of components 261, 1303 and 247 (bent pins, bad
contacts, etc.).
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Manipulate the wiring harness in order to produce a change in the fault status (present → stored).
Check the insulation, continuity and the absence of interference resistance on connection 34GG between
components 261 and 1303.
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.
Check the insulation, continuity and the absence of interference resistance on connection 34GD between
components 247 and 1303.
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.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the faults from the 4R radio navigation computer memory using command RZ001
Fault memory.
NAV4R_V24_DF035
Page 55 of 86
MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-54
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR009
ANGULAR POSITION
NOTESThere must be no present or stored faults.
Engine stopped, ignition on.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Remove component 261 (Trafic: 662) without disconnecting the connectors.
Shake the radio/navigation computer vigorously; parameter PR009 Angular position should be above or equal
to 1 d/s.
Each time the 4R radio/navigation computer is at rest, PR009 Angular position should be very close to 0 d/s.
If the parameter does not change, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
NAV4R_V24_PR009
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 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 71 of 86
MULTIMEDIA
Diagnostic - Fault finding chart86C
86C-70
NAV 4R
Program no.: 0000
Vdiag No.: 24
ALP 5 CD read fault
NOTESOnly check the customer complaint after performing a full check with the diagnostic
tool.
Ensure there are no present or stored faults.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Is the fault related to CD reading by the radio/
navigation computer or by the 6CD changer?
By the radio/navigation computer By the 6CD changer
Is the CD an MP3 CD?
Yes
Check that component 261 (commercial vehicle:
662) is compatible with MP3 CDs (see "MP3" logo
on keypad).
Yes
Try with another MP3 CD.
Has the fault disappeared?
Yes
The faulty CD is in poor condition or is not
compatible (only MP3 format is compatible).
No
NoEnd of fault finding.
NoContact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
NAV4R_V24_ALP5
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
Page 79 of 86

MULTIMEDIA
Diagnostic - Fault finding chart86C
86C-78
NAV 4R
Program no.: 0000
Vdiag No.: 24
ALP 11 The 6 CD changer does not work
NOTESOnly check the customer complaint after performing a full check with the diagnostic
tool.
Ensure there are no present or stored faults.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Disconnect then reconnect component 1272.
Does the CD changer request its code?
("CD 0000")
No
Check the condition and connection of the connector of components 261 (Trafic: 662) and 1272.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Has the fault been solved?
No
With the radio switched on, check for + battery feed
on connection 34BC and + accessories feed on
connection 34BD of the connector of
component 1272.
Are the + battery and + accessories feeds
present?
Yes
Contact the Techline.
YesRefer to ALP 10 The screen displays
"CD0000".
NoCheck the continuity, insulation and
the absence of interference resistance
on connections 34BC, 34BL and 34BD
between components 261 (Trafic: 662)
and 1272.
Yes Are the connections correct?
No
If the connection or connections are faulty and there is a
repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the
wiring, otherwise replace it.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
NAV4R_V24_ALP11
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