change time RENAULT SCENIC 2008 J84 / 2.G Electrical Equipment - Network Interface Unit BIC Workshop Manual

8Electrical equipment
V1 MR-372-J84-86D050$TOC.mif
V1
86D
"The repair procedures given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The procedures may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from
which his vehicles are constructed."
V1
All rights reserved by Renault s.a.s.
Edition Anglaise
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of
Renault s.a.s.
© Renault s.a.s. 2008
MULTIMEDIA NETWORK INTERFACE UNIT
BIC
Vdiag No.: 14
Fault finding – Introduction 86D - 2
Fault finding – List and location of components 86D - 8
Fault finding – Role of components 86D - 10
Fault finding – Operating diagram 86D - 11
Fault finding – Function 86D - 13
Fault finding – Configurations and programming 86D - 14
Fault finding – Replacement of components 86D - 15
Fault finding – Fault summary table 86D - 16
Fault finding – Interpretation of faults 86D - 17
Fault finding – Conformity check 86D - 25
Fault finding – Status summary table 86D - 29
Fault finding – Interpretation of statuses 86D - 30
Fault finding – Parameter summary table 86D - 34
Fault finding – Command summary table 86D - 35
Fault finding – Customer complaints 86D - 36
Fault finding – Fault Finding Chart 86D - 37

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MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Introduction86D
BIC
Vdiag No.: 14
4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring may temporarily remove the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Physical inspection
While manipulating the wiring, use the diagnostic tool to note any change in fault status from stored to present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to +12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.

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Vdiag No.: 14
Role of main components
–Multimedia network interface unit: enables information to be exchanged between the "vehicle" and "multimedia"
multiplex networks.
The multimedia network interface unit receives various signals from the vehicle CAN (speed, status of exterior
lights) and retransmits them for the radio via the Multimedia CAN.
The multimedia network interface unit transmits the activation signal to the radio and to the other computers
participating in the multimedia function when the user switches on the radio or starts the vehicle.
–Display: displays various multimedia system data such as the station selected, time, CD listing and satellite
guidance information.
–Steering column switch: provides access to various functions of the multimedia system.
–Speakers: 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 receiver.
–AM/FM aerial: receives radio signals.
–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.
–AM/FM aerial amplifier: improves the reception of AM and FM signals.
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Role of components

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Vdiag No.: 14
Layout of the main components of the LPN* Radio system:
Diagnostic socket
V M CAN
Other computersMultimedia network
interface unit
Steering column
control
GPS aerial LPN radio navigation
Passenger
compartment fuse box
and relay
Aerial amplifier
Radio navigation
display
ABS, ABS/ESP or
wheel speed
computer
depending on
equipment level
Microphone
CD changer
(depending on
equipment)Speakers
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Operating diagram

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Vdiag No.: 14
General operation
The multimedia system is involved in the following functions:
–Radio reception (AM, FM).
–Playing CDs/MP3 CDs/navigation map.
–Guidance and navigation system with colour screen.
–Bluetooth hands-free phone.
The use of this multimedia system allows the customer:
–To select radio stations by using the preselections, the list or manual selection.
–To have an automatically-updated radio list.
–To listen to CDs or MP3 CDs.
–To control the radio using the radio control satellite.
–To change various acoustic parameters (bass, treble, fader, etc.).
–To navigate on a colour screen (visual and audio guidance): for this function the system uses GPS, the vehicle
speed wire information and an internal gyroscope.
–To receive traffic information via RDS-TMC and to display it on the navigation map.
–To display the time and temperature on the screen.
–To use the hands-free phone function (sound relayed to the radio speakers) with a Bluetooth phone (HFP profile).
–To be protected by an immobiliser code.
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Function

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Vdiag No.: 14
NOTESOnly refer to the customer complaints after performing a complete check using
the diagnostic tool.
NO DIALOGUE WITH THE COMPUTER ALP 1
THE MULTIMEDIA SYSTEM DOES NOT SWITCH ON ALP 2
STEERING COLUMN SWITCH FAULT ALP 3
EXTERNAL TEMPERATURE DISPLAY FAULT ALP 4
BACKLIGHTING DOES NOT CHANGE WHEN THE VEHICLE LIGHTS ARE
SWITCHED ONALP 5
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Customer complaints

86D-44
AFTER REPAIRCarry out a complete check with the diagnostic tool.
V1 MR-372-J84-86D050$160.mif
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Fault Finding Chart86D
BIC
Vdiag No.: 14
*LPN: Low Price Navigation
ALP 5Backlighting does not change when the vehicle lights are
switched on.
NOTESSwitch on the + after ignition feed to enter fault finding mode with the computer.
Use the Wiring Diagrams Technical Note for Espace IV Phase 2 or Scénic II
Phase 2.
Switch on the lights. Carry out fault finding on the UCH
(see 87B, Passenger compartment
connection unit). Is the air conditioning control backlighting
correct?
With the lights on, check status ET007 Brightness.Check the voltage on connection BPT
(Scénic II Phase 2) or 13W (Espace IV
Phase 2) of component 1714.
Is status ET007 "Night"?
Are the checks correct?
Check the insulation, continuity and the absence
of interference resistance on the following
connections:
107X between components 1714 and 261,
107W between components 1714 and 261.
Are the checks correct?Contact the Techline.
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.
NO
YES
NO
YES
YESNO
YES
YES
BIC_V14_ALP5