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86D-10V1 MR-372-J84-86D050$030.mif
86D
BIC
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
Page 11 of 44
86D-11V1 MR-372-J84-86D050$040.mif
86D
BIC
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
Page 13 of 44

86D-13V1 MR-372-J84-86D050$050.mif
86D
BIC
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
Page 15 of 44

86D-15V1 MR-372-J84-86D050$070.mif
86D
BIC
Vdiag No.: 14
For information on removing/refitting the multimedia network interface unit, refer to the MR for the vehicle concerned:
–Scénic II Phase 2 (see MR 370, Mechanical, 83C, On-board telematics system, Multimedia network interface
unit: Removal - Refitting)
–Espace IV Phase 2 (see MR 405, Mechanical, 83C, On-board telematics system, Multimedia network
interface unit: Removal - Refitting)
Operations to be carried out before replacing the multimedia network interface unit:
1. Before replacing the multimedia network interface unit (with Techline approval), perform a fault read and a
conformity check to confirm that it is defective.
2. After obtaining Techline approval, remove the multimedia network interface unit, with the ignition off (wait
1 minute for the system to shut down completely).
The multimedia network interface units available from the Parts Department are supplied unconfigured.
Operations to be carried out after replacing the multimedia network interface unit:
–Configure the multimedia network interface unit (see Configurations and Programming).
Important: After switching on the system, there can be a delay of 20 seconds before dialogue is established.
*LPN: Low Price NavigationNote:
If the LPN* radionavigation and the multimedia network interface unit (connection unit) are replaced
simultaneously, the multimedia network interface unit must be configured first (see Configurations and
programming).
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Replacement of components
Page 21 of 44

86D-21
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults using command RZ001 Fault memory.
Deal with any other faults.
V1 MR-372-J84-86D050$090.mif
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Interpretation of faults86D
BIC
Vdiag No.: 14
DF006
PRESENT
OR
STOREDACTIVATION SIGNAL
CO: Open circuit.
CC.0: Short circuit to earth.
CC.1: Short circuit to +12 volts.
NOTESFault finding procedure application conditions:
The fault is declared present after:
–The + after ignition feed is activated, then the multimedia system was switched on
using the on/off button.
–The fault is declared stored after the vehicle is completely shut off (1 minute after
locking).
If the fault is present, the multimedia functions do not operate.
Use the Wiring Diagrams Technical Note for Espace IV Phase 2 or Scénic II
Phase 2.
Check the connection and condition of the connectors of the radio, component code 261, the display, component
code 1127, and the multimedia network interface unit, component code 1714.
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation to earth and to +12 V, the continuity, and the absence of interference resistance of the
following connections:
•34HU between components 261 and 1714,
•34HU between components 1127 and 1714.
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.
If the fault persists, contact your Techline.
BIC_V14_DF006
Page 22 of 44
86D-22
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults using command RZ001 Fault memory.
Deal with any other faults.
V1 MR-372-J84-86D050$090.mif
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Interpretation of faults86D
BIC
Vdiag No.: 14
DF007
PRESENT
OR
STOREDCOMPUTER
1.DEF: Internal electronic fault.
NOTESIf the fault is present, the multimedia function is locked and no computer (radio, radio
control satellite, etc.) operates.
Replace the multimedia network interface unit, component code 1714 (see MR 405 (Espace IV Phase 2) or
MR 370 (Scénic II Phase 2) Mechanical, 83C, On-board telematics system, Multimedia network interface
unit: Removal - Refitting).
If the fault persists, contact your Techline.
BIC_V14_DF007
Page 23 of 44
86D-23
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults using command RZ001 Fault memory.
Deal with any other faults.
V1 MR-372-J84-86D050$090.mif
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Interpretation of faults86D
BIC
Vdiag No.: 14
DF008
PRESENT
OR
STOREDCOMPUTER
1.DEF: Internal electronic fault.
NOTESIf the fault is present, the multimedia function is locked and no multimedia system
component (radio, radio control satellite, etc.) operates.
Replace the multimedia network interface unit, component code 1714 (see MR 405 (Espace IV Phase 2) or
MR 370 (Scénic II Phase 2) Mechanical, 83C, On-board telematics system, Multimedia network interface
unit: Removal - Refitting).
If the fault persists, contact your Techline.
BIC_V14_DF008
Page 25 of 44
86D-25V1 MR-372-J84-86D050$100.mif
86D
BIC
Vdiag No.: 14
MAIN SCREEN
NOTESOnly carry out a conformity check after a complete check with the diagnostic tool. The
values shown in this conformity check are given as a guide.
Application conditions: Engine stopped, ignition on, and the radio switched on.
FunctionParameter or status
Checked or actionDisplay and notes Fault finding
Battery voltagePR002Battery
voltage12 V < X < 15 VIn the event of an
inconsistency, consult the
interpretation of fault DF005
Supply.
External
temperaturePR004External
temperature-40˚C < X < 60˚CIn the event of an
inconsistency, run fault
finding on the UCH (see 87B,
Passenger compartment
connection unit).
Side lightsET004+12 V Side
lightsOFF
ONIn the event of an
inconsistency, run fault
finding on the UCH (see 87B,
Passenger compartment
connection unit).
BIC_V14_CCONF
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Conformity check