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

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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).

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Fault finding - Conformity check
MAIN COMPUTER STATUSES AND PARAMETERS
*degrees/second
NOTESOnly check the conformity after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: engine stopped, ignition on.
FunctionParameter, Status
checked or ActionDisplay and notes Fault finding
Vehicle speedPR010:Vehicle speedUnit: km/hIn the event of a fault, consult
the interpretation of parameter
PR010 Vehicle speed.
Satellite receptionPR008:Number of
satellites receivedIn an open area, the number of
satellites received should be
greater than 3 for the system to
operate correctly.In the event of a fault, consult
the interpretation of parameter
PR008 Number of satellites
received.
Angular position
sensorPR009:Angular positionUnit: ˚/s*
This parameter determines the
angular speed during cornering.In the event of a fault, consult
the interpretation of parameter
PR009 Angular position.
LPN_VC4_CCONF
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Fault finding - Conformity check86A
SUB-FUNCTION: USER SELECTION
NOTESOnly check the conformity after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: engine stopped, ignition on.
FunctionParameter, Status
checked or ActionDisplay and Notes Fault finding
Front panel
buttonET009:CD eject buttonPRESSED
RELEASED
In case of inconsistency,
contact the Techline. ET058:Central wheel left turnPRESSED
RELEASED
ET059:Central wheel right turnPRESSED
RELEASED
ET041:"Back" buttonPRESSED
RELEASED
ET042:Repeat buttonPRESSED
RELEASED
ET018:Audio buttonPRESSED
RELEASED
ET040:"SET" buttonPRESSED
RELEASED
ET039:"TEL" buttonPRESSED
RELEASED
ET038:"MAP" buttonPRESSED
RELEASED
ET037:Navigation buttonPRESSED
RELEASED

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Fault finding - Conformity check86A
SUB-FUNCTION: USER SELECTION (CONTINUED)
NOTESOnly check the conformity after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: engine stopped, ignition on.
FunctionParameter, Status
checked or ActionDisplay and Notes Fault finding
Front panel
button
(continued)ET010:Radio preselection
button 1PRESSED
RELEASED
In case of inconsistency,
contact the Techline. ET011:Radio preselection
button 2PRESSED
RELEASED
ET012:Radio preselection
button 3PRESSED
RELEASED
ET013:Radio preselection
button 4PRESSED
RELEASED
ET014:Radio preselection
button 5PRESSED
RELEASED
ET015:Radio preselection
button 6PRESSED
RELEASED
ET036:Wheel press on/offPRESSED
RELEASED
ET043:Wheel left turnPRESSED
RELEASED
ET044:Wheel right turnPRESSED
RELEASED
ET004:Left directional buttonPRESSED
RELEASED
ET003:Right directional buttonPRESSED
RELEASED

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Fault finding - Conformity check86A
SUB-FUNCTION: WIRELESS COMMUNICATION
NOTESOnly check the conformity after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: engine stopped, ignition on.
FunctionParameter, Status
checked or ActionDisplay and Notes Fault finding
Navigation
receptionPR008:Number of satellites
receivedIn an open area, the
number of satellites
received should be greater
than 3 for the system to
operate correctly.In the event of a fault, consult the
interpretation of parameter PR008
Number of satellites received.

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Fault finding - Conformity check86A
SUB-FUNCTION: AUDIO
NOTESOnly check the conformity after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: engine stopped, ignition on.
FunctionParameter, Status
checked or ActionDisplay and notes Fault finding
Vehicle speedPR010:Vehicle speedUnit: km/hIn the event of a fault, consult the
interpretation of parameter
PR010 Vehicle speed.
Power supplyPR011:Battery voltage11 V < PR011 < 14 VIn the event of a fault, refer to the
interpretation of parameter
PR011 Battery voltage.
Auxiliary sourceET056:Auxiliary inputACTIVE
INACTIVEIn the event of a fault, refer to
ALP 23 Auxiliary source fault.
Power supplyET057:Activation signalACTIVE
INACTIVEIn the event of a fault, run fault
finding on the multimedia network
interface unit (see 86D,
Multimedia network
interface unit).

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Fault finding - Interpretation of parameters
PR008
NUMBER OF SATELLITES RECEIVED
NOTESThere must be no present or stored faults.
Position the vehicle, with the engine running, in an open area with no interference.
Avoid tunnels and underground car parks.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2, Trafic II
ph2 or Kangoo 2.
Check the condition and connection of the GPS coaxial connector on the following components (bent pins, bad
contacts, etc.):
–Scénic II ph2 and Kangoo 2: 886 and 261.
–Espace IV ph2 and Trafic II ph2: 261 and 1551.
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.
Disconnect the GPS coaxial cable at the rear of component 261 and measure the resistance between the coaxial
cable signal connection and its shielding.
If the resistance is less than 30 Ω, disconnect the GPS coaxial cable from the cut-off plate at the rear and check
the insulation, continuity and absence of interference resistance on the GPS coaxial cable at the rear of
component 261.
If the connections are not correct, replace the coaxial cable.
If the connections are correct, replace the GPS aerial.
–Scénic II ph2 (see MR 370, Mechanical, 83C, On-board telematics system, Radio aerial: Removal -
Refitting)
–Trafic II ph2 (see MR 408, Mechanical, 83C, On-board telematics system, Navigation aerial: Removal -
Refitting)
–Espace IV ph2 (see MR 405, Mechanical, 83C, On-board telematics system, Navigation aerial: Removal -
Refitting)
–Kangoo 2 (see MR 417, Mechanical, 83C, On-board telematics system, Aerial: Removal - Refitting)
AFTER REPAIRRepeat the conformity check from the start.
LPN_VC4_PR008
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Fault finding - Interpretation of parameters
LPN RADIO
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86A
˚/s: degrees per second
*LPN: Low Price NavigationPR009
ANGULAR POSITION
NOTESThere must be no present or stored faults.
Engine stopped, ignition on.
Remove component 261 without disconnecting the connectors.
Shake the LPN* radio navigation computer vigorously; parameter PR009 should be above or equal to 1˚/s.
Each time the LPN* radio navigation computer is stationary, PR009 should be very close to 0˚/s.
If the parameter does not change, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
LPN_VC4_PR009

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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.
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Fault finding - Fault Finding Chart86A
ALP 2 The screen stays black
NOTESOnly consult this ALP after a complete check with the diagnostic tool.
Check that the fault is still present after pressing the On/Off button of component 261,
with the engine running.
Use the wiring diagrams Technical Note for Scénic II ph2, Espace IV ph2,
Trafic II ph2 or Kangoo 2.
Check that the computer is correctly configured (see
Configurations and programming).
Has the fault disappeared?
NO
When the ignition is switched on, is the +
accessories feed present on connection 34HU of
the 24-track connector of component 261?
YES
With the engine running, check for + 12 V on
connection 34HU and an earth on connection MAN
(Kangoo 2), MAN (Trafic II ph2 and Scénic II ph2)
or NC (Espace IV ph2) on the connector of
component 1127.
Check the insulation, continuity and the absence
of interference resistance on the following
connections:
–Connection code TB30,
–Connection code 34GZ,
–Connection code 34HA,
between components 261 and 1127.
Are these tests correct? NO
YES
YESEnd of fault finding.
NOIf 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.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
LPN_VC4_ALP2