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

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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.

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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

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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

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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

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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

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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

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RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
DF006
PRESENT
OR
STOREDFM1 AMPLI
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
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.
Use the wiring diagram Technical Note for Kangoo 2.
Look for any damage to the wiring harness and check the condition and connection of the coaxial radio cable
on component 261.
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 the resistance of the coaxial radio cable between connections 34AN and TB13 of component 886.
If the resistance is not 50 Ω ± 5 Ω, check the insulation, continuity and the absence of interference
resistance on the following connections:
–connection code TB13,
–connection code 34AN,
between component 261 and the cut-off plate at the rear.
If any connections are defective, replace the coaxial cable.
If the fault is still present, replace the aerial amplifier.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF006

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RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
DF032
PRESENT
OR
STOREDCOMPUTER
1.DEF: System locked
2.DEF: Radio internal overheating
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.
1.DEF
NOTESSpecial note:
The screen displays the immobiliser code entry.
Follow the instructions in Technical Note 5037A, Code
delivery procedure to obtain the immobiliser code.
Check the condition and connection of the connectors on the multiplex connections 133B, 133C of components
645 and 1714.
If the connector(s) are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
Check the insulation, continuity and the absence of interference resistance of the following connections:
●133B between components 645 and 1714,
●133C between components 645 and 1714.
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.
Perform fault finding on the multimedia interface unit (see 86D, Multimedia network interface unit).
If the fault is still present, contact the Techline.
AFTER REPAIRRestart the system.
Carry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
LPN_VC4_DF032

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RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
DF037
PRESENT
OR
STOREDCOMPUTER
1.DEF: Internal electronic fault
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,
–a road test in an area with no satellite coverage (tunnels, etc.).
Special note:
The vehicle position is incorrect.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Check that the PR010 Vehicle speed wire signal and the multiplex information on the instrument panel
correspond by carrying out a road test.
If both signals are identical but appear incorrect compared to the actual situation, run fault finding on the speed,
ABS or ABS/ESP computer depending on the equipment level (see 38G, Vehicle speed computer or 38C, Anti-
lock braking system).
Look for any damage to the wiring harness, and check the condition and connection of the connectors for
components 261 and 1094, 118 or 953 (depending on the equipment level).
Manipulate the wiring harness in order to observe a change in the fault status (present → stored).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
Check the continuity, insulation and the absence of interference resistance on the following connection:
–Connection code 47F between components 261 and 1094, 118 or 953 depending on the equipment level.
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 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_DF037

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RADIO
Fault finding - Interpretation of faults
LPN RADIO
Vdiag No.: C4
86A
*LPN: Low Price NavigationDF040
PRESENT
OR
STORED
NO AUDIO CD CHANGER SIGNALS
1.DEF: No communication with the CD changer
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,
–a CD is played in the CD changer.
Special note:
If the vehicle does not have a CD changer, check the configuration of the LPN* radio
navigation computer (see Configuration and programming).
Use the wiring diagrams Technical Note for Scénic II ph2.
Look for any damage to the wiring harness and check the condition and connection of the connectors for
components 261 and 1272.
Manipulate the wiring harness in order to observe a change in the fault status (present → stored).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–connection code 34AZ,
–connection code 34BA,
–connection code 34BL,
–connection code 34BC,
–connection code 34BD,
–connection code 34BG,
–connection code 34BH,
between components 261 and 1272.
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_DF040