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

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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.

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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
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
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LPN RADIO
Vdiag No: C4

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RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
DF060
PRESENT
OR
STOREDNO DISPLAY MULTIPLEX SIGNAL
1.DEF: No communication with display
NOTESConditions for applying the fault finding procedure to a stored fault:
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.
Check the condition of the multimedia system display supply fuse.
Replace the fuse if not correct.
Look for any damage to the wiring harness and check the condition and connection of the connector for
component 1127.
Manipulate the wiring harness in order to observe a change in the fault status (present → stored).
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check for + 12 V supply between the following connections:
–Trafic II ph2: between connections BP26 and MAN of component 1127,
–Kangoo 2: between connections BP26 and MAN of component 1127,
–Espace IV ph2: between connections BP3A and NC of component 1127,
–Scénic II ph2: between connections BCP3 and MAN of component 1127.
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 REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF060

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Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
*LPN: Low Price NavigationDF061
PRESENT
OR
STORED
SUPPLY
1.DEF: Undervoltage
2.DEF: Overvoltage
NOTESConditions for applying the fault finding procedure to a stored fault:
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.
Test the battery and run fault finding on the charging circuit (see Technical Note 6014A, Checking the charging
circuit).
Check the conformity of the LPN* radio navigation computer supply fuse.
Replace the fuse if not correct.
Check the conformity of the earth on the following connection:
–Espace IV ph2: connection code MV of component 261.
–Trafic II ph2: connection code MT of component 261.
–Kangoo 2: connection code MT of component 261.
–Scénic II ph2: connection code MT of component 261.
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.
Check for + 12 V on the following connection:
–Espace IV ph2: connection code BCP4 of component 261.
–Trafic II ph2: connection code BP26 of component 261.
–Kangoo 2: connection code BP26 of component 261.
–Scénic II ph2: connection code BCP3 of component 261.
If this is not correct, check the insulation, continuity and the absence of interference resistance on the
following connection:
–Espace IV ph2: connection code BCP4 between components 710 and 261.
–Trafic II ph2: connection code BP26 between component 261 and the component supplying the LPN*
radio navigation computer
–Kangoo 2: connection code BP26 between components 260 and 261.
–Scénic II ph2: connection code BCP3 between components 260 and 261.
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 the wiring.
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_DF061

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Fault finding - Interpretation of parameters
LPN RADIO
Vdiag No.: C4
86A
*LPN: Low Price NavigationPR011
BATTERY VOLTAGE
NOTESThere must be no present or stored faults.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Check the permanent + supply fuse of component 261.
If the voltage is at minimum:
Check the battery and the charge circuit (see Technical Note 6014A Checking the charge circuit).
If the voltage is at maximum:
Check that the charging voltage is correct with and without electrical consumers switched on.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Scénic II ph2:
–connection code BCP3 between components 261 and 260.
–connection code MT between component 261 and earth MT.
Espace IV ph2:
–connection code BCP4 between components 261 and 710.
–connection code MV between component 261 and earth MV.
Trafic II ph2:
–connection code BP26 between component 261 and the component supplying the LPN* radio
navigation computer.
–connection code MT between component 261 and earth MT.
Kangoo 2:
–connection code BP26 between components 261 and 260.
–connection code MT between component 261 and earth MT.
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.
LPN_VC4_PR011

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Fault finding - Fault Finding Chart
*LPN: Low Price Navigation
ALP 1 No dialogue with the LPN* computer
NOTESStart the engine.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2,
Trafic II ph2 or Kangoo 2.
Important: After activating the system, the delay before establishing dialogue can last
20 seconds.
Try the diagnostic tool on another vehicle.
Is dialogue possible with a computer?
YES NO
On the defective vehicle.
Check the voltage of the battery.
Check the condition and connection of the battery
connections.
Check the condition of the fuses.
Check:
–the connection between the diagnostic tool and
the diagnostic sensor (wiring in good condition),
–the connection between the diagnostic sensor
and the diagnostic socket (wiring in good
condition).
AFTER REPAIRCarry out a complete check with the diagnostic tool.
LPN_VC4_ALP1
MR-372-J84-86A050$944.mif
LPN RADIO
Vdiag No.: C4