ESP RENAULT SCENIC 2008 J84 / 2.G LPN Radio Workshop Manual

86A-2
MR-372-J84-86A050$059.mif
V3
86A
RADIO
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:
*LPN: Low Price NavigationVehicle(s): Espace IV phase 2, Scénic II phase 2,
Trafic II phase 2, Kangoo 2
Function concerned: Radio, satellite navigationName of computer: LPN* radio navigation
VDIAG NO: C4
Special tooling required
Multimeter
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).
See that the + after ignition feed has been cut off by checking that the computer warning lights on the instrument
panel have gone out.
LPN_VC4_PRELI
MR-372-J84-86A050$059.mif
LPN RADIO
Vdiag No: C4

86A-3
MR-372-J84-86A050$059.mif
V3
LPN RADIO
Vdiag No: C4RADIO
Fault finding - Introduction86A
Procedure (continued)
Espace IV ph2:
In order to save energy, the Espace IV Phase 2 UCH cuts off the + after ignition feed after 3 minutes.
To run fault finding on a computer, it is possible to force the + after ignition feed on for 1 hour by applying the
following procedure:
–Press the card unlocking button.
–Insert the card into the card 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 active for 1 hour.
Pressing the start button or removing the card from the reader cuts off the forced + after ignition feed but does not cut
off the timed forced + after ignition feed mode. As long as one hour has not passed, the + after ignition feed function
restarts the 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 following
the + after ignition supply being switched on (without operating the system components).
For a present fault, apply the method described in the section on Interpretation of faults.
For a stored fault, note the faults displayed and apply the notes section.
If the fault is confirmed when the instructions in the Notes section 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 defective,
–the condition of the wires (melted or split insulation, wear).

86A-4
MR-372-J84-86A050$059.mif
V3
LPN RADIO
Vdiag No: C4RADIO
Fault finding - Introduction86A
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.

86A-6
MR-372-J84-86A050$059.mif
V3
LPN RADIO
Vdiag No: C4RADIO
Fault finding - Introduction86A
4. FAULT FINDING PROCEDURE (CONTINUED)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating 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.
Tactile inspection
While manipulating the wiring harness, 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.

86A-10
MR-372-J84-86A050$236.mif
V3
86A
RADIO
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
Multifunction aerial
(Trafic II ph2)Steering column
control
GPS aerialLPN* radio
navigation
Aerial amplifier
(Espace IV ph2,
Scénic II ph2,
Kangoo 2)Passenger
compartment fuse
box and relay
ABS, ABS/ESP or
wheel speed
computer depending
on equipment levelRadio navigation
display
Microphone
CD changer
(if an option)Speakers
Vehicle multiplex network
Multimedia multiplex network
MR-372-J84-86A050$236.mif
LPN RADIO
Vdiag No: C4

86A-13
MR-372-J84-86A050$413.mif
V3
86A
RADIO
Fault finding - Replacement of components
For information on removing/refitting the LPN* radio navigation computer, refer to the MR for the vehicle concerned:
–Scénic II ph2 (see MR 370, Mechanical, 83C On-board telematics system, Navigation computer: Removal -
Refitting)
–Espace IV ph2 (see MR 405, Mechanical, 83C, On-board telematics system, Radio navigation:
Removal - Refitting)
–Trafic II ph2 (see MR 408, Mechanical, 83C, On-board telematics system, Radio navigation:
Removal - Refitting)
–Kangoo 2 (see MR 417, Mechanical, 83C On-board telematics system, Radio navigation:
Removal - Refitting)
Operations to be carried out before replacing the LPN* radio navigation computer:
Note:
If the LPN* radio navigation computer and the multimedia network interface unit are replaced
simultaneously, first configure the multimedia network interface unit (see 86D, multimedia network interface
unit, Configuration and programming).
1 -Before replacing the LPN* radio navigation computer (with Techline approval), perform a fault read and a
conformity check to confirm that it is defective.
2 -Before removing, eject the CD.
3 -After obtaining Techline approval, remove the LPN* radio navigation computer with the ignition off (wait
1 minute for the system to shut down completely).
The LPN* radio navigation computers available from the Parts Department are supplied unconfigured.
Operations to be carried out after replacing the LPN* radio navigation computer:
1. Configure the computer (see Configurations and Programming).
The LPN* radio navigation computer is in factory mode following configuration (FM 87.5 MHz in scrambled mode for
2 minutes).
Clear the present or stored faults using command RZ003 Fault memory.
2. Enter the unlocking code for the LPN* radio navigation system
How to obtain the unlocking code for the LPN* radio navigation system:
–switch on + after ignition feed (see Introduction),
–if the LPN* radio navigation system does not switch on when the + after ignition feed is activated, press the ON/
OFF button on the front panel,
–connect the Clip diagnostic tool,
–note the programming key number ID007 Radio programming key shown in the Identification menu.
–When you have this programming key number, consult Renault.net to obtain the LPN* radio navigation system
unlocking code. If the fault is still present, contact Techline.
–The unlocking code is requested 2 minutes after the LPN* radio navigation system has been switched on,
–enter the code using the radio control satellite under the steering wheel.
Important: After activating the system, the delay before establishing dialogue can last 20 seconds.
*LPN: Low Price NavigationNote:
Each time an incorrect code is entered, the waiting time doubles (maximum 32 minutes).
MR-372-J84-86A050$413.mif
LPN RADIO
Vdiag No.: C4

86A-15
MR-372-J84-86A050$531.mif
V3
86A
RADIO
Fault finding - Interpretation of faults
*LPN: Low Price NavigationDF001
PRESENT
OR
STORED
FRONT RIGHT-HAND SPEAKER
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
CO: Open circuit
1.DEF: Short circuit between lines
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
–the multimedia system has been switched on using the on/off button,
–command AC004 Front right-hand speaker lines test has been run.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Measure the resistance of the front right-hand speaker.
If the resistance is not between 3.6 and 4.4 Ω, replace the front right-hand speaker.
Measure the resistance of the front right-hand tweeter.
If the resistance is not between 3.6 and 4.4 Ω, replace the front right-hand tweeter.
Check the condition and connection of the LPN* radio navigation 8-track clear connector, component code 261,
the front right-hand tweeter connector, component code 365, and the front right-hand speaker connector,
component code 191 (bent/broken tabs, etc.).
If the connectors are faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s); otherwise, replace the wiring.
Check the continuity and insulation against + 12 V, earth and between the 2 lines of the following
connections:
–connection code 34E,
–connection code 34F,
between components 261, 365 and 191.
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 is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF001
MR-372-J84-86A050$531.mif
LPN RADIO
Vdiag No.: C4

86A-16
MR-372-J84-86A050$531.mif
V3
RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
*LPN: Low Price NavigationDF002
PRESENT
OR
STORED
FRONT LEFT-HAND SPEAKER
CC.0: Short circuit to earth
CC.1: Short circuit to +12 V
CO: Open circuit
1.DEF: Short circuit between lines
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
–the multimedia system has been switched on using the on/off button,
–command AC005 Front left-hand speaker lines test has been run.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Measure the resistance of the front left-hand speaker.
If the resistance is not between 3.6 and 4.4 Ω, replace the front left-hand speaker.
Measure the resistance of the front left-hand tweeter.
If the resistance is not between 3.6 and 4.4 Ω, replace the front left-hand tweeter.
Check the condition and connection of the LPN* radio navigation 8-track clear connector, component code 261,
the front left-hand tweeter connector, component code 366, and the front left-hand speaker connector,
component code 192 (bent/broken tabs, etc.).
If the connectors are faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s); otherwise, replace the wiring.
Check the continuity and insulation against + 12 V, earth and between the 2 lines of the following
connections:
–connection code 34G,
–connection code 34H,
between components 261, 366 and 192.
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 is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF002

86A-17
MR-372-J84-86A050$531.mif
V3
RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
*LPN: Low Price NavigationDF003
PRESENT
OR
STORED
REAR RIGHT-HAND SPEAKER
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
CO: Open circuit
1.DEF: Short circuit between lines
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
–the multimedia system has been switched on using the on/off button,
–command AC006 Rear right-hand speaker lines test has been run.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Measure the resistance of the rear right-hand speaker.
If the resistance is not between 3.6 and 4.4 Ω, replace the rear right-hand speaker.
Measure the resistance of the rear right-hand tweeter.
If the resistance is not between 3.6 and 4.4 Ω, replace the rear right-hand tweeter.
Check the condition and connection of the LPN* radio navigation 8-track clear connector, component code 261,
the rear right-hand tweeter connector, component code 1132, and the rear right-hand speaker connector,
component code 189 (bent/broken tabs, etc.).
If the connectors are faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s); otherwise, replace the wiring.
Check the continuity and insulation against + 12 V, earth and between the 2 lines of the following
connections:
–connection code 34D,
–connection code 34C,
between components 261, 1132 and 189.
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 is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF003

86A-18
MR-372-J84-86A050$531.mif
V3
RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
*LPN: Low Price NavigationDF004
PRESENT
OR
STORED
REAR LEFT-HAND SPEAKER
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
CO: Open circuit
1.DEF: Short circuit between lines
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
–the multimedia system has been switched on using the on/off button,
–command AC007 Rear left-hand speaker lines test has been run.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Measure the resistance of the rear left-hand speaker.
If the resistance is not between 3.6 and 4.4 Ω, replace the rear left-hand speaker.
Measure the resistance of the rear left-hand tweeter.
If the resistance is not between 3.6 and 4.4 Ω, replace the rear left-hand tweeter.
Check the condition and connection of the LPN* radio navigation 8-track clear connector, component code 261,
the rear left-hand tweeter connector, component code 1133, and the rear left-hand speaker connector,
component code 190 (bent/broken tabs, etc.).
If the connectors are faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s); otherwise, replace the wiring.
Check the continuity and insulation against + 12 V, earth and between the 2 lines of the following
connections:
–connection code 34A,
–connection code 34B,
between components 261, 1133 and 190.
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 is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF004