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

86D -2V1 MR-372-J84-86D050$010.mif
86D
BIC
Vdiag No.: 14
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding method applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this document):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu - Schéma.
Type of diagnostic tools
–CLIP
Special tooling required
3. REMINDER
Procedure
Scénic II Phase 2: To run fault finding on the vehicle computers, switch on the forced + after ignition feed.
Proceed as follows:Vehicle(s): Espace IV Phase 2, Scénic II
Phase 2Name of computer: Multimedia network
interface unit
Function concerned: Interface between the
vehicle and multimedia networksVdiag No.: 14
Special tooling required
Multimeter
Ele. 1481Bornier
Elé. 1681 Universal bornier
Switch on the forced + after ignition feed:
–with the vehicle card in the card reader,
–press and hold the Start button (longer than 5 seconds) with start-up conditions not fulfilled,
–connect the diagnostic tool and perform the required operations.
BIC_V14_PRELI
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Introduction

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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.

86D-19
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults using command RZ001 Fault memory.
Deal with any other faults.
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Fault finding – Interpretation of faults86D
BIC
Vdiag No.: 14
DF005
PRESENT
OR
STOREDSUPPLY
1.DEF: Overvoltage.
2.DEF: Undervoltage.
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after the multimedia system has been switched on.
Special notes:
The undervoltage fault appears if the computer feed voltage is less than or equal to
7.5 V for at least 1 second.
The overvoltage fault appears if the computer feed voltage is greater than or equal to
18.5 V for at least 1 second.
Use the Wiring Diagrams Technical Note for Espace IV Phase 2 or Scénic II
Phase 2.
1.DEF
NOTESNone.
Check the battery and perform an alternator supply test (see 16A, Starting, Charging).
BIC_V14_DF005

86D-20
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults using command RZ001 Fault memory.
Deal with any other faults.
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Fault finding – Interpretation of faults86D
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Vdiag No.: 14
DF005
CONTINUED
2.DEFNOTESNone.
Remove the card from the reader or the key from the ignition, then check the condition of the battery, component
code 107.
Check the battery: leaks, incorrectly fitted, loosened battery terminal, and corrosion.
Check the earth connections of the vehicle: battery/chassis, engine/chassis, starter/engine, alternator/engine,
gearbox/chassis.
If the fault is detected, resolve the abnormal contact fault.
Check the battery and perform an alternator supply test (see 16A, Starting, Charging).
Check the condition of fuse F15 (30 A) for Espace IV Phase 2 or fuse SHUNT (2AA) for Scénic II Phase 2.
Check the connection and condition of the connectors of the multimedia network interface unit computer,
component code 1714, depending on the vehicle equipment.
If any connectors are faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connectors, otherwise replace the wiring.
Disconnect the computer connector and check the conformity of the following connections:
•BP3A between components 260 and 1714 (for Espace IV Phase 2),
•BCP3 between components 260 and 1714 (for Scénic II Phase 2),
•BPT between components 645 and 1714 (for Scénic II Phase 2),
•MAN between component 1714 and earth (for Scénic II Phase 2),
•NC between component 1714 and earth (for Espace IV Phase 2).
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.

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
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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

86D-30
AFTER REPAIRRepeat the conformity check from the start.
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Vdiag No.: 14
ET009
ET011
ET012
ET020
ET023
ET024
ET025REPEAT BUTTON
+ BUTTON
- BUTTON
MUTE BUTTON
SOURCE BUTTON
MODE BUTTON
TELEPHONE BUTTON
STATUS DEFINITIONPRESSED: This means that the button is pressed.
RELEASED: This means that the button is released.
NOTESThere must be no present or stored faults.
Note: ET009 Repeat button is not present on the Espace IV Phase 2.
Use the Wiring Diagrams Technical Note for Espace IV Phase 2 or Scénic II
Phase 2.
Check the condition and connection of the radio control satellite connector, component code 1519 (for Scénic II
Phase 2) or component code 325 (for Espace IV Phase 2) and the multimedia network interface unit connector,
component code 1714.
If the 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.
BIC_V14_ET009 / BIC_V14_ET011 / BIC_V14_ET012 / BIC_V14_ET020 / BIC_V14_ET023 / BIC_V14_ET024 / BIC_V14_ET025
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Interpretation of statuses

86D-31
AFTER REPAIRRepeat the conformity check from the start.
V1 MR-372-J84-86D050$120.mif
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Interpretation of statuses86D
BIC
Vdiag No.: 14
ET009
ET011
ET012
ET020
ET023
ET024
ET025
CONTINUED
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on the
following connections:
•34AT between components 1519 (or 325) and 1714,
•34AR between components 1519 (or 325) and 1714,
•34AS between components 1519 (or 325) and 1714,
•34AQ between components 1519 (or 325) and 1714,
•34AU between components 1519 (or 325) and 1714,
•34AP between components 1519 (or 325) 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.
Replace the radio control satellite (see MR 405 (Espace IV Phase 2) or MR 370 (Scénic II Phase 2), Mechanical,
86A, Radio, Radio satellite control: Removal - Refitting).
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 is still present, contact Techline.

86D-32
AFTER REPAIRRepeat the conformity check from the start.
V1 MR-372-J84-86D050$120.mif
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Interpretation of statuses86D
BIC
Vdiag No.: 14
ET017WHEEL ACTION
STATUS DEFINITIONDownwards: This means that the wheel is turned downwards.
Upwards: This means that the wheel is turned upwards.
Inactive: This means that there is no action on the wheel.
NOTESThere must be no present or stored faults.
Use the Wiring Diagrams Technical Note for Espace IV Phase 2 or Scénic II
Phase 2.
Check the condition and connection of the radio control satellite connector, component code 1519 (for Scénic II
Phase 2) or component code 325 (for Espace IV Phase 2) and the multimedia network interface unit connector,
component code 1714.
If the 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.
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on the
following connections:
•34AT between components 1519 (or 325) and 1714,
•34AR between components 1519 (or 325) and 1714,
•34AS between components 1519 (or 325) and 1714,
•34AQ between components 1519 (or 325) and 1714,
•34AU between components 1519 (or 325) and 1714,
•34AP between components 1519 (or 325) 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.
BIC_V14_ET017

86D-37
AFTER REPAIRWhen communication is established, deal with any faults indicated.
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Vdiag No.: 14
ALP 1 No dialogue with the computer
NOTESUse the Wiring Diagrams Technical Note for Espace IV Phase 2 or Scénic II
Phase 2.
Important: After switching on the system, there can be a delay of 20 seconds before
dialogue is established.
Try to establish dialogue with a computer on another vehicle to check that the diagnostic tool is not faulty. If the
diagnostic tool is not causing the fault and dialogue cannot be established with any other computer on the same
vehicle, it may be that a faulty computer is disrupting the fault finding line.
Use a process of successive disconnections to locate this computer.
Check the battery voltage, component code 107, and perform the necessary operations to obtain the correct
voltage (12 V < X < 15 V).
Check the presence and condition of the computer supply fuses:
–for Espace IV Phase 2: F15 (30 A),
–for Scénic II Phase 2: SHUNT (2AA).
Check the connection of the multimedia network interface unit connector, component code 1714 and the condition
of its connections.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check that the computer is correctly supplied by checking the following connections:
•BP3A between components 260 and 1714 (for Espace IV Phase 2),
•BCP3 between components 260 and 1714 (for Scénic II Phase 2),
•BPT between components 645 and 1714 (for Scénic II Phase 2),
•MAN between component 1714 and earth (for Scénic II Phase 2),
•NC between component 1714 and earth (for Espace IV Phase 2).
If the connection(s) 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.
BIC_V14_ALP1
MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding – Fault Finding Chart

86D-38
AFTER REPAIRWhen communication is established, deal with any faults indicated.
V1 MR-372-J84-86D050$160.mif
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Fault finding – Fault Finding Chart86D
BIC
Vdiag No.: 14
ALP 1
CONTINUED
Check that the diagnostic socket, component code 225, is correctly supplied on the following connections:
–for Espace IV Phase 2:
•BCP4 between components 225 and unitary fuse 710,
•AP10 between components 225 and 260 (+ after ignition feed),
NC and MB of component 225.
–for Scénic II Phase 2:
•BP32 between components 225 and 260,
•AP43 between components 225 and 1337 (+ after ignition feed),
•NAM and MAM of component 225.
Check the continuity, insulation and absence of interference resistance on the following connections:
•107W and 107X between components 1714 and 225,
•133B and 133C between components 1714 and 225 (for Espace IV Phase 2)
•133B and 133C between components 1714 and 645 (for Scénic II Phase 2).
If the connection(s) 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 dialogue is still not established after these various checks, 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 is still present, contact Techline.