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

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MULTIMEDIA NETWORK INTERFACE UNIT
Fault finding - Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedure (this manual):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM), paper.
Type of diagnostic tools
–CLIP + multiplex line sensor
Special tooling required
3. REMINDERS
Procedure
Scénic II ph2: 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 2,
Trafic II phase 2, Kangoo 2
Function concerned: Interface between the vehicle
and multimedia networksName of computer: Multimedia network interface
unit
VDIAG No.: 04, 14
Special tooling required
Multimeter
Elé. 1481 Bornier
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.
Switching off the forced + after ignition feed:
Press the Start button twice briefly (less than 3 seconds).
Ensure that the + after ignition feed has been cut off by checking that the computer warning lights on the
instrument panel have gone out.
BIC_V04_PRELI/BIC_V14_PRELI
Multimedia network
interface unit
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Fault finding - Introduction
Multimedia network
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Procedure (continued)
Espace IV ph2: To save energy, the UCH on the Espace IV Phase 2 cuts out the + after ignition feed after
3 minutes.
To run fault finding on a computer, it is possible to force the + after ignition feed for 1 hour by applying the following
procedure:
–Press the card unlocking button.
–Insert the card into the reader.
–Press the Start button (interrupting the timed + after ignition feed mode).
–Press and hold the Start button for over 5 seconds until the engine immobiliser warning light starts to flash
rapidly (4 Hz).
This "forced + after ignition feed" mode remains on for 1 hour.
Pressing the Start button or removing the card from the card reader cuts off the + after ignition feed but does not cut
off the forced after ignition feed timed mode. Until one hour has elapsed, activating the + after ignition feed will
restart forced + after ignition feed for the remaining time.
Trafic II ph2 and Kangoo 2:
To run fault finding on the vehicle computers, switch on the forced + after ignition feed.
Faults
Faults are displayed as present or stored (they appeared in a certain context and have since disappeared, or they
are still present but cannot be diagnosed in the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is used after the
+ after ignition feed is switched on (without acting on the system components).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the instructions are applied, the fault is present. Deal with the fault.
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors on these lines (corrosion, bent pins, etc.),
–the resistance of the component detected as faulty,
–the condition of the wires (melted or split insulation, wear).

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Fault finding - Introduction
Multimedia network
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Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because the
data is inconsistent. Therefore, this stage is used to:
–carry out fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint.
–check that the system is operating correctly and that there is no risk of a fault recurring after repair.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
customer complaints.
A summary of the overall procedure to follow is provided on the following page in the
form of a flow chart

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Fault finding - Introduction
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4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or handling the wiring harness 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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Fault finding - Operating diagram
Layout of the main components of the LPN* Radio system:
*LPN: Low Price NavigationV M multiplex line
diagnostic socketUCH
FEED (Kangoo 2)Electric mirror,
passenger side
(Trafic II ph2)
Other computersMultimedia network
interface unit
Steering column
control
Multifunction aerial
(Trafic II ph2)
GPS aerialLPN* radio
navigation
Aerial amplifier
(Espace IV ph2,
Scénic II ph2,
Kangoo 2)Passenger
compartment fuse box
and relay
Radio navigation
display
ABS, ABS/ESP or
wheel speed
computer depending
on equipment level
Microphone
CD changer
(if an option)Speakers
Vehicle multiplex network
Multimedia multiplex network
Multimedia network
interface unit
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Fault finding - Replacement of components
For information on removing/refitting the multimedia network interface unit, refer to the MR for the vehicle concerned:
–Scénic II ph2 (see MR 370 Mechanical systems, 83C On-board telematics system, Multimedia network
interface computer: Removal - Refitting)
–Espace IV ph2 (see MR 405 Mechanical systems, 83C On-board telematics system, Multimedia network
interface computer: Removal - Refitting)
–Trafic II ph2 (see MR 408 Mechanical systems, 83C On-board telematics system, Multimedia network
interface computer: Removal - Refitting)
–Kangoo 2 (see MR 417 Mechanical systems, 83C On-board telematics system, Multimedia network
interface computer: 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).
*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
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Fault finding - Interpretation of faults
Multimedia network
interface unit
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DF005
PRESENT
OR
STOREDSUPPLY
1.DEF: Excess voltage
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 using
the on/off button.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Check the battery voltage,
Check the charging circuit (see Technical Note 6014A, Checking the charging circuit).
Check the condition of the multimedia network interface unit supply fuse.
If the supply fuse is correct, check for + 12 V on connection BCP4 (Kangoo 2), BCP4 (Trafic II ph2), BP3A
(Espace IV ph2) or BCP3 (Scénic II ph2).
If there is no + 12 V, check the continuity of connection BCP4 (Kangoo 2), BCP4 (Trafic II ph2),
BP3A (Espace IV ph2) or BCP3 (Scénic II ph2).
Check for earth on connection MAN (Kangoo 2), MAN (Trafic II ph2 and Scénic II ph2),
NC (Espace IV ph2).
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 fuse is not correct, check the insulation against earth on connection BCP4 (Kangoo 2), BCP4 (Trafic II
ph2), BP3A (Espace IV ph2) or BCP3 (Scénic II ph2).
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.
Replace the fuse.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other possible faults.
BIC_V04_DF005/BIC_V14_DF005

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Fault finding - Interpretation of faults
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interface unit
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DF006
PRESENT
OR
STOREDACTIVATION SIGNAL
CO : Open circuit
CC.0: Short circuit to earth.
CC.1: Short circuit to + 12 V
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after:
–the + after ignition feed is activated,
–the multimedia system has been switched on using the on/off button.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Look for any damage to the wiring harness, check the condition and connection of the connectors on
components 261, 1714 and 1127.
Manipulate the wiring harness in order to observe a change in the fault status (present → stored).
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation, continuity and the absence of interference resistance of the following connection:
–connection code 34HU between components 261, 1714 and 1127.
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 REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other possible faults.
BIC_V04_DF006/BIC_V14_DF006

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Fault finding - Interpretation of statuses
ET005
SILENCE MODE
NOTESThere must be no present or stored faults.
Engine stopped, ignition on.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2,
Trafic II ph2 or Kangoo 2.
Note:
For vehicles which do not have the "Silence" button on the steering column switch,
pressing the +/- twice displays status ET005.
Check the condition and connection of the connector of component 325 (Scénic II ph2 and Kangoo 2: 1519)
and of the black 24-track connector of component 1714.
If the connectors are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Scénic II ph2 and Kangoo 2:
–connection code 34AT,
–connection code 34AR,
–connection code 34AS,
–connection code 34AQ,
–connection code 34AU,
–connection code 34AP,
between components 1714 and 1519.
Trafic II ph2 and Espace IV ph2:
–connection code 34AT,
–connection code 34AR,
–connection code 34AS,
–connection code 34AQ,
–connection code 34AU,
–connection code 34AP,
between components 1714 and 325.
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 REPAIRRepeat the conformity check from the start.
BIC_V04_ET005/BIC_V14_ET005
Multimedia network
interface unit
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Fault finding - Interpretation of statuses
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ET005
CONTINUED
On component 325 or 1519 depending on the vehicle type, use an ohmmeter to carry out the following checks:
Button StatusConnection of
component 325/1519Resistance
+ buttonPressed
34AT and 34AP< at 300 Ω
Released Insulation
- buttonPressed
34AS and 34AP< at 300 Ω
Released Insulation
MUTE button
If fittedPressed
34AQ and 34AT< at 300 Ω
Released Insulation
If the measured values do not correspond with the values above, replace the radio satellite control.
–Espace IV ph2 (see MR 405 Mechanical systems, 83C, On-board telematics system).
–Scénic II ph2 (see MR 370 Mechanical systems, 84A Control - signals, Steering wheel controls: Removal
- Refitting).
–Trafic II ph2 (see MR 408 Mechanical systems, 86A Radio, Radio control satellite: Removal - Refitting).
If the measurements are in order, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.