display RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16C36 Owner's Manual
Page 251 of 431
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DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET703
CONTINUED 2
DECREASE
Status ET703 becomes DECREASE when the - button of the cruise control/speed
limiter is pressed. This button is on the steering wheel, on the left-hand side.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's frontal airbag (see MR 364 Mégane,
MR370 Scénic, Mechanical systems, 88C, Airbag and pretensioners, Driver's
front airbag, Removal - Refitting).
If status ET703 does not display DECREASE, check the status of the +/- button of the
cruise control/speed limiter and the status of its connector. Repair if necessary.
If there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the wiring, otherwise replace it.
Measure the resistance of the following connection whilst pressing the - button
(on the button tracks):
– Connection code 86G of component 331.
– Connection code 86M of component 331.
If the resistance is not approximately 100 Ω check the continuity of the connection
when the button is not pressed.
If there is continuity, replace the +/- control button.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 277 of 431
13B-277
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR038
CONTINUED
Sensor electrical conformity
Check the status of the connector of the rail pressure sensor (see Wiring Diagram Technical Note, Mégane II
ph2, Scénic II ph2, Component code 1032).
Check the status of the connector of the rail pressure sensor (see Wiring Diagram Technical Note, Mégane II
ph2, Scénic II ph2, Component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the continuity and absence of interference resistance on the following connections:
– Connection code 3LX,
– Connection code 3LY,
– Connection code 3LZ,
between components 120 and 1032.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
Check that there is no external diesel leak from the high pressure fuel circuit.
With the ignition on and the engine stopped for over 1 minute:
Display parameter PR038.
– If the pressure is below 90 bar, the sensor is in order.
– If the pressure is above 90 bar, contact the Techline.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 346 of 431
13B-346V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR873OIL OXIDATION SIGNAL
PARAMETER
DEFINITIONThis parameter indicates the distance of the vehicle when the oil dilution threshold is
reached.
NOTESOnly apply the interpretation of this parameter if the OCS (oil control system)
program is activated on the instrument panel. On the instrument panel computer,
check the configuration reading LC106 OCS: WITH
This parameter is not operational in Vdiag44
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C, without electrical consumers
The oil condition is calculated by the oxidation program in the injection computer, according to the number of
engine revolutions.
When this count reaches a certain threshold before the end of the oil service period, the injection computer sends
a signal to the instrument panel, which will display service due. Parameter PR873 corresponds to the vehicle
mileage at the time this signal is sent.
Then the instrument panel computer deducts 900 miles (1500 km) before displaying the message Service
required.
IMPORTANT
When the message Service required appears on the instrument panel, the customer must arrange an oil change
within the remaining 900 miles (1500 km).
EDC16CP36_V4C_PR873/EDC16CP36_V48_PR873/EDC16CP36_V50_PR873/EDC16CP36_V54_PR873/EDC16CP36_V58_PR873
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 4C, 48, 50,
54, 58
Page 348 of 431
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR875OIL DILUTION SIGNAL
PARAMETER
DEFINITIONThis parameter indicates the vehicle mileage when the oil dilution threshold is reached.
NOTESThis parameter should be interpreted only if the OCS (Oil Control System) program
is activated on the instrument panel. On the instrument panel computer, check the
configuration reading LC106 O.C.S: WITH.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C, without electrical consumers
The injection computer assesses the dilution rate of the engine oil according to the customer's driving style. When
the dilution level reaches a certain threshold before the end of the oil change interval, the injection computer sends
a signal to the instrument panel, which then displays Service required. Parameter PR875 corresponds to the
vehicle mileage at the time this signal is sent.
IMPORTANT
When the message service required appears on the instrument panel, the customer must carry out an oil service
immediately to prevent damage to their engine.
EDC16CP36_V50_PR875EDC16 C36
Program No.: 91
VDIAG No.: 50
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
Page 359 of 431
13B-359
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
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Fault finding – Interpretation of commands13B
SC031OPERATIONAL FAULT FINDING OF CYLINDERS
NOTESThis command is used to run fault finding on the performance of each cylinder and
each injector.
To run this command, select scenario SC031 on the diagnostic tool.
Reminder: cylinder no. 1 is located at the timing end.
Procedure to be followed:
– select scenario SC031,
– once the conditions have been met, press the confirm button; the test will take approximately 5 minutes,
– the tool displays “cylinder no. 1 cut-off” and there will be a perceptible engine speed variation when the
cylinder is cut off; then the same procedure for the other three cylinders,
–the diagnostic tool displays the results,
– end of test.
Interpretation of correct results:
– If the displayed results are “VALID”, it means that the entire cylinder and injector assembly is in order. There is
no need for any operation.
Results Interpretation of results
Cylinder 1 VALID No operation
Cylinder 2 VALID No operation
Cylinder 3 VALID No operation
Cylinder 4 VALID No operation
– If a displayed result is “INVALID”, it means the cylinder or injector is not correct.
Difference compared to average Results Interpretation of results
Cylinder XNegative number or
Positive numberINVALIDCarry out the checks
described below.
EDC16C36_V4C_SC031/EDC16C36_V48_SC031/EDC16C36_V50_SC031/EDC16C36_V54_SC031/EDC16C36_V58_SC031 EDC16 C36
Program No.: 91
Vdiag No.: 4C, 48, 50,
54, 58
Page 361 of 431
13B-361
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
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DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC035HIGH PRESSURE FUEL CIRCUIT FAULT FINDING
NOTESThis command is used to interpret the state of the high pressure fuel circuit (high
pressure pump, rail, injectors and high pressure supply pipes).
To run this command, select scenario SC035 on the diagnostic tool.
Procedure to be followed:
– select scenario SC035 High pressure fuel circuit fault finding,
– follow the instructions then “confirm”,
– with the command in progress: do not operate on the vehicle,
– switch off the engine at the end of the test,
– the tool displays the results,
– end of test.
Interpretation of correct results:
– If the results displayed are OK, the entire high pressure fuel circuit is in order. There is no need for any operation.
Stage X
(X is the variable from 1 to 4)Rising time
Rail pressureDrop off time
Rail pressureInterpretation of results
Stage X OK OK No operation
Stage 5 OK No operation
Interpretation of incorrect results:
– Is one of the value definitions for the various displayed stages is “TOO SLOW” or “TOO FAST”, see the
following table:
Stage X
(X is the variable from 1 to 4)Rising time
Rail pressureDrop off time
Rail pressureInterpretation of results
Stage X TOO SLOW TOO SLOW Check 1
Stage X TOO SLOW TOO FAST Check 2
Stage X TOO SLOW OK Check 3
Stage X OK TOO SLOW Check 4
Stage X OK TOO FAST Check 5
Stage 5 TOO FAST Check 5
EDC16C36_V4C_SC035/EDC16C36_V48_SC035/EDC16C36_V50_SC035/EDC16C36_V54_SC035/EDC16C36_V58_SC035 EDC16 C36
Program No.: 91
Vdiag No.: 4C, 48, 50,
54, 58
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AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
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DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC004TURBOCHARGING SOLENOID VALVE
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault or
– after processing the interpretation of PR041 Turbocharging pressure or
– after a customer complaint (loss of power, smoke etc.).
Ignition on and engine stopped.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
1. The following procedure is for checking that the turbocharger and its control circuit are working
properly.
Check the sealing of the high pressure air circuit, run test 3 Low pressure circuit check
Pipe not joined or pierced, pressure sensor disconnected or poorly fitted (seal present), exchanger pierced.
To test the exchanger: stabilise the engine speed between 3500 and 4000 rpm with the vehicle stopped and check
that there are no leaks.
Measure the resistance of the turbocharging pressure solenoid valve between the following connections:
– Connection code 3MG,
– Connection code 3FB,
of component 1475.
Replace the solenoid valve if its resistance is not: 20 Ω ± 2 at +23°C.
Check the continuity, insulation, and the absence of interference resistance on the following connections:
– Connection code 3MG between components 1475 and 120.
– Connection code 3FB between components 1475 and 983.
Run command AC004, if a faint whistling noise is heard along with a clicking from the solenoid valve, go to step
2, otherwise check the operation of the computer output stage:
Vehicle under + after ignition feed, clear the faults displayed by the diagnostic tool.
With the voltmeter in the direct current position:
With the turbocharging solenoid valve connected, connect the voltmeter earth lead to connection 3MG of
component 1475 and the positive lead to connection3FB.
Run command AC004, the voltmeter should display four successive voltages of 2.4 V ± 0.2 V.
If the measurement is not correct, contact the Techline.
EDC16C36_V44_AC004/EDC16C36_V4C_AC004/EDC16C36_V48_AC004/EDC16C36_V50_AC004/EDC16C36_V54_AC004/
EDC16C36_V58_AC004EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 369 of 431
13B-369
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
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DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC011RAIL PRESSURE REGULATOR
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault
– following an inconsistency recorded in the parameters,
– following a customer complaint (starting problems, engine speed instability, injection
noise).
Ignition on and engine stopped.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Step 1
Check the continuity and absence of interference resistance on the following connections:
– Connection code 3HI between components 1105 and 120.
– Connection code 3FB between components 1105 and 983.
Run command AC011. If there is a slight whistling noise and clicking from the pressure regulator, go to step 2,
otherwise, check that the computer output stage is operating correctly:
Vehicle under + after ignition feed, clear the faults displayed by the diagnostic tool.
With the voltmeter in the direct current position:
With the pressure regulator connected, connect the voltmeter earth lead to connection 3HI of component 1105
and the positive lead to connection 3FB.
Run command AC011; the voltmeter should display four successive voltages of 2.2 V ± 0.2 V.
If the measurement is not correct, contact the Techline.
STEP 2
EDC16C36_V44_AC011/EDC16C36_V4C_AC011/EDC16C36_V48_AC011/EDC16C36_V50_AC011/EDC16C36_V54_AC011/
EDC16C36_V58_AC011EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 371 of 431
13B-371
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
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DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC012DAMPER VALVE
NOTESCarry out this interpretation:
– after DF226 Damper valve
– or after a customer complaint (starting faults, poor performance).
Ignition on and engine stopped.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Check the continuity, insulation and absence of interference resistance on the following connections:
– Connection code 3VN,
– Connection code 3VM,
between components 1461 and 120.
Check for +12 V on connection 3FB of component 1461.
Check for earth on connectionNT of component1461.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
With the vehicle ignition on, and the engine stopped:
Check that the damper valve is open.
If not, clean or replace the damper valve.
Actuate the valve using command AC012 and check the damper valve travel and the rest position of the valve.
Check the operation of the computer output stage with a voltmeter:
Actuate the valve with command AC012.
Positive lead to connection3FB and negative lead to connection3VN of component1461.
The voltmeter should display three cycles of ON-OFF (12.5 V then return to 0V).
If the measurement is correct, replace the damper valve.
If the measurement does not show any operation, contact the Techline.
EDC16C36_V44_AC012/EDC16C36_V4C_AC012/EDC16C36_V48_AC012/EDC16C36_V50_AC012/EDC16C36_V54_AC012/
EDC16C36_V58_AC012EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 377 of 431
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AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
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DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC103EGR BY-PASS
NOTESCarry out this fault finding procedure when the interpretation of fault DF304 EGR
bypass circuit has not been resolved.
Ignition on and engine stopped.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Measure the resistance of the EGR bypass solenoid valve between the following connections:
– Connection code 3TP,
– Connection code 3FB,
of component 1301.
43 Ω to 49 Ω at +25°C.
32 Ω to 37 Ω at -40°C
If the resistance is not correct, replace the EGR by-pass solenoid valve.
Check the continuity, insulation and absence of interference resistance on the following connections:
– Connection code 3TP between components 1301 and 120.
– Connection code 3FB between components 1301 and 983.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If you notice no valve movement when running command AC103, ensure that the computer output stage is
functioning:
Vehicle under + after ignition feed, clear the faults displayed by the diagnostic tool.
With the voltmeter in the direct current position:
With the EGR BY-PASS solenoid valve connected, connect the voltmeter earth lead to connection3TP of
component1301 and the positive lead to connection3FB.
Run command AC103, the voltmeter should display four successive readings which are approximately equal to
the 12 V battery voltage.
If the voltmeter indicates no control or a continuous voltage, contact the Techline.
If activation has run correctly, check the control vacuum:
– Disconnect the solenoid valve inlet hose and connect it to a pressure gauge.
– Start the engine and run it at a stable idle speed.
– If the vacuum pressure does not reach 800 mbar ± 100: check the vacuum pressure circuit from the vacuum
pump.
Repair if necessary.
EDC16C36_V44_AC103/EDC16C36_V4C_AC103/EDC16C36_V48_AC103/EDC16C36_V50_AC103/EDC16C36_V54_AC103/
EDC16C36_V58_AC103EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58