2011 RENAULT SCENIC display

13B-229
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR038
CONTINUED
Sensor electrical conformity.
Check the condition of the rail pressure sensor connector (see Wiring Diagram Technical Note, Vehicle,
component code 1032).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Vehicle, component code 120).
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, wiring: precautions for repair), repair the connector, otherwise replace the wiring.
Check the continuity and absence of interference resistance of 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 are no external diesel leaks 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.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-293
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
SC002
ENTER INJECTOR CODES
NOTESrun this command after replacing the injectors but only if the vehicle is configured with
ima.
(ET104 Injector code use to YES).
If this command is not run, fault DF276 Injection code programming will be present.
WARNING
The letters J and Q, and figures 0 and 9 are not used in IMA coding.
If these characters are used the entry will be invalid.
Cylinder no. 1 is the cylinder located on the engine flywheel end.
Procedure to be followed:
– Make a note of the 6-character alphanumeric codes engraved on the upper section of the injector bodies.
– Use command SC002.
– Select the cylinder number for the cylinder concerned in the Desired, column, then confirm.
– enter the injector code displayed for the cylinder.
– Enter the new codes for each cylinder, then confirm.
– When the command is completed, the modified codes appear in the Current column.
– Check that the codes correspond to those read earlier.
– If the codes entered do not appear in either the Current column or the Desired column, check the codes read
and make sure that the data has been entered correctly.
The possible confusions are:
digit "1" with the letter "i"
figure 8 with the letter b
figure 5 with the letter s
- Exit fault finding mode.
- Switch off the ignition and wait for 1 min. Switch the ignition back on and check for faults.
-DF276 Injector code programming should be stored.
If fault DF276 Injector code programming is present, the command has not run correctly.
Start the procedure again and follow the instructions.
If the codes are still not accepted, check that the computer has been put on standby correctly:
Switch off the ignition and wait for 1 minute.
if the warning light flashes when the ignition is switched off, the computer has not been put on standby and the
command will be ignored.
If all these checks still do not enable the command to be confirmed, contact the Techline.
EDC16_V50_SC002/EDC16_V58_SC002/EDC16_V5C_SC002/EDC16_V18_SC002/EDC16_V1C_SC002/EDC16_V20_SC002

13B-304
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
*ocr = opening cyclic ratioAC004
CONTINUED
Turbocharger control circuit check (continued)
4) Check the operation of the turbocharger:
a) Attach a vacuum pump to the hose connected to the turbocharger control diaphragm,
Apply a vacuum of 700 mbar < X < 900 mbar:
If there is a leak, replace the turbocharger (diaphragm included).
b) Check the movement and adjustment of the control rod (see MR 364 (Mégane II), 370 (Scénic II) or 395
(Laguna II), Mechanical, 12B, Turbocharging).
If the control rod is sticking, replace the turbocharger.
c) Engine cold and stopped:
Remove the turbocharger inlet duct and check that the compressor turns freely on the axis.
d) If the fault persists:
Check that the exhaust manifold is not leaking.
Check that the exhaust is not blocked.
Carry out the necessary repairs.
5) Check the computer output stage with the solenoid valve connected:
This operation can only be carried out if the checks indicated in step no. 2 are not conclusive.
→Or using a voltmeter:
Connect the voltmeter earth lead to connection 3FB (Laguna II and Mégane II) or 3FB1 (Scénic II) of
component 1475 and the positive lead to connection 3MG.
Clear any solenoid valve fault then run command AC004:
The voltmeter should display ten cycles of two successive voltages ~ = battery voltage X current OCR*.
Either: ~ 2.5 V (OCR* of 20%) then ~ 8.7 V (OCR* of 70%).
→Or using an oscilloscope (range 5 V/division and time base 1 ms/division):
Connect the oscilloscope earth lead to the battery earth and the positive test pin to connection 3FB (Laguna II
and Mégane II) or 3FB1 (Scénic II) of component 1475.
Clear any solenoid valve faults, then run command AC004:
the oscilloscope should display a square wave signal of 12.5 V in amplitude at a frequency of 140 Hz
(with an OCR* passing from ~ 20 to ~ 70%).
if the measurement is correct, replace the solenoid valve.
if the measurement does not show any control or continuous voltage, contact the techline.

13B-305
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
*ocr: opening cyclic ratioAC011
RAIL PRESSURE REGULATOR
NOTESthis command is used to check:
– the operation of the pressure regulator,
– and the high pressure injection circuit.
Step 1:
Measure the resistance of the pressure regulator between connections 3HI and 3FB.
- Replace the regulator if its resistance is not 2.5 Ω < X < 3.5 Ω at 20°C.
Check the continuity and absence of interference resistance of the following connections:
– connection code 3HI,
– connection code 3FB.
Between components 120 and 11 0 5.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If, when running command AC011, you can hear a slight whistling noise and a clicking noise from the pressure
regulator, go to step 2. Otherwise, check that the computer output stage is functioning correctly:
→Using a voltmeter:
With the solenoid valve connected, connect the voltmeter earth lead to connection 3HI of component 1105 and
the positive lead to connection 3FB (Laguna II and Mégane II) or 3FB1 (Scénic II). Clear any fuel pressure
solenoid valve faults, then run command AC011:
The voltmeter should display two successive voltages: ~2.5V for an OCR* of 20%, then ~8.75V for an OCR* of
70% (ten cycles)
→Or using an oscilloscope (range 5 V/division and time base 1 ms/division):
With the solenoid valve connected, connect the oscilloscope earth to the battery earth and the positive test pin to
connection 3HI of component 11 05; clear any fuel pressure solenoid valve faults then run command AC011:
The oscilloscope should display a square wave signal of 12.5 V in amplitude at a frequency of 185 Hz (with an
OCR* passing successively from 20 to 70%).
if the measurement is correct, replace the regulator.
If the measurement is not correct, contact the Techline.
EDC16_V50_AC011/EDC16_V58_AC011/EDC16_V5C_AC011/EDC16_V18_AC011/EDC16_V1C_AC011/EDC16_V20_AC011

13B-307
MR-372-J84-13B200$756.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of commands
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
AC012
DAMPER VALVE
NOTESCarry out this interpretation:
–after DF226 Damper valve,
– or after a customer complaint (starting faults, poor performance).
Ignition on and engine stopped.
Check the continuity, insulation and absence of interference resistance on the following connections:
– connection code NT (Laguna II) between component 1461 and the earth NT.
– connection code N (Scénic II and Mégane II) between component 1461 and the earth N.
– connection code 3FB (Laguna II) between components 1461 and 597.
– connection code 3FB2 (Scénic II) between components 1461 and 1337.
– connection code 3FB (Mégane II) between components 1461 and 1337.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check for + 12 V on connection 3FB (Laguna II and Mégane II) or 3FB2 (Scénic II) of component 1461.
Repair if necessary.
Check for earth on connection N (Scénic II and Mégane II) or NT (Laguna II) of component 1461.
Repair if necessary.
Check that the damper valve is open.
If not, clean or replace the air vent unit.
Actuate the valve using command AC012 and check its travel and rest position.
Check the operation of the computer output stage with a voltmeter:
Actuate the valve with command AC012.
If the solenoid valve opens (vacuum pump pressure gauge returns to atmospheric pressure), go to step C.
Otherwise, with the solenoid valve connected, check the operation of the computer output stage with a voltmeter
between connections 3FB (Laguna II and Mégane II) or 3FB2 (Scénic II) and N (Scénic II and Mégane II) or
NT (Laguna II) of component 1461.
The voltmeter should display three ON-OFF cycles (12.5 V then return to 0 V).
If the measurement is correct, replace the damper valve.
If the measurement does not show any operation, contact the Techline.
EDC16_V50_AC012/EDC16_V58_AC012/EDC16_V5C_AC012/EDC16_V18_AC012/EDC16_V1C_AC012/EDC16_V20_AC012

13B-319
MR-372-J84-13B200$828.mif
V13
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP 2 Starting difficult (or impossible)
NOTESBefore dealing with this customer complaint, check that there are no faults, and
the conformity (or otherwise) of the parameters and statuses using the
diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Is it difficult or impossible to start the engine?
PART A:
Check the engine earths.
Ensure that the engine speed reaches 250 rpm with the starter motor, as displayed on the parameter screen (PR055
Engine speed).
If the engine speed is less than 250 rpm, refer to Technical Note 6014A, Checking the charging circuit.
If the engine speed shown on CLIP is zero and the engine is running, check the resistance of the engine speed
sensor between connections 3BG and 3BL of component 149:
Replace the sensor if its resistance is not 510 Ω < X < 850 Ω at 20°C
Check the continuity of the following connections:
– connection codes 3BG and 3BL between components 120 and 149.
Check the conformity of the engine earths (oxidation, tightness, etc.).
Check the mounting, the gap (if necessary refer to the information in the workshop repair manual for the vehicle) and
the condition of the sensor (overheating).
Replace if necessary.
Check the synchronisation of the camshaft sensors and the engine speed sensors with the display of ET238
Synchronisation.
If synchronisation is not active, refer to the checks described in DF195 Camshaft/engine speed consistency.
check the fuel circuit sealing.
If the fault is still present, see DF053 Rail pressure regulation function 2.DEF, step 4.
Check that the heater plugs are actuated using the AC001 Preheating unit command.
Check the sealing and condition of the inlet circuit: run Test 4 Turbocharged air inlet circuit check and follow the
associated fault finding procedure.
Check that there are no foreign bodies on the flowmeter grille: run Test 5 Air flowmeter and follow the associated
fault finding procedure.
Check the position of the exhaust gas recirculation valve.
Check that the exhaust is not blocked: run Test 1 Exhaust pipe check and follow the associated fault finding
procedure.
Check the consistency of the signal from the engine coolant temperature sensor.
Check the operation of the pressure regulator (see AC011 Rail pressure regulator).
Check the operation of the injectors (excessive return leak, clogging, seizing): run Test 9 Poor injector operation.
Check the engine timing (and the position of the high pressure pump sprocket).
Check the balance of the compressions, according to the power consumption during the starting phase
(Compression test menu on the CLIP Technic tool or using a compression gauge)
after the operation, clear the faults caused by disconnecting the regulator and the heater plugs.
End of part AImpossible
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V50_ALP2/EDC16_V58_ALP2/EDC16_V5C_ALP2/EDC16_V18_ALP2/EDC16_V1C_ALP2/EDC16_V20_ALP2

13B-346
MR-372-J84-13B200$900.mif
V13
DIESEL INJECTION
Fault finding – Tests
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
* OCR: Opening Cyclic Ratio
TEST 5 Air flowmeter
Impurities in the grilles:
Visual inspection: remove the flowmeter. There should be no foreign bodies on the grilles (see diagram 110734).
Do not clean the grilles using compressed air or any other procedure: this damages the sensors and
creates variations from the values displayed on the CLIP tool.
Check the sealing of the air circuit upstream of the air flowmeter:
disconnected or pierced pipes and air filter unit, seals present.
Replace the air flowmeter if necessary and clean upstream of this, if necessary.
Damage to electrical components:
Visual inspection:
– remove the flowmeter, the components should not be broken (see diagram no. 110736).
Replace the air flowmeter if necessary.
Oxidation of the electrical components:
Visual inspection:
– remove the air flowmeter, there must not be any green deposits on the electrical components.
Replace the air flowmeter if necessary.
Clogging of the air flowmeter:
Te s t :
– Check the values for conformity:
* During the first 5 seconds after starting:
– Coolant temperature: 80°C.
– Engine speed: at idle speed (750 rpm < PR055 < 850 rpm).
– Air flow measurement: 37 kg/h < PR132 < 57 kg/h.
– EGR valve OCR*: between - 10% and 0%.
* After the starting phase:
– Coolant temperature: 80°C,
– Engine speed: at idle speed (750 rpm < PR055 < 850 rpm).
– Air flow measurement: 25 kg/h < PR132 < 35 kg/h.
– EGR valve OCR*: between 10% and 40%.
– Refer to the interpretation of DF056 Air flow sensor circuit 2.DEF, for the air flowmeter checks.
Replace the air flowmeter if necessary.
EDC16_V50_TEST5/EDC16_V58_TEST5/EDC16_V5C_TEST5/EDC16_V18_TEST5/EDC16_V1C_TEST5/EDC16_V20_TEST5

13B-350
MR-372-J84-13B200$936.mif
V13
DIESEL INJECTION
Fault finding – Tests
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
TEST 9 Incorrect injector operation
Section A: Fuel regulation balance check for each injector (individual correction):
– In the CLIP diagnostic tool, choose the Fuel circuit subfunction.
– With the engine idling and the fuel temperature > 50°C, display the flow correction values for each injector
(individual correction), i.e.:
– PR364 Cylinder no. 1 fuel flow correction.
– PR405 Cylinder no. 2 fuel flow correction.
– PR406 Cylinder no. 3 fuel flow correction.
– PR365 Cylinder no. 4 fuel flow correction.
The flow correction range per injector is between - 5 mg/stroke and + 5 mg/stroke without reaching these
values.
– If this has not already been carried out, check the injector connections and wiring.
– Check the connections and wiring of the engine management computer to the injectors.
– Repair if necessary.
– Check the IMA injector codes, comparing the IMA codes on the injectors (the IMA codes must be read from left
to right) and the IMA codes read in the CLIP diagnostic tool.
– If the IMA codes are correct, continue the fault finding procedure,
– If not, modify the incorrect IMA codes using command SC002 Enter injector codes (see Interpretation of
commands).
To confirm the repair, consult part B of test 9.
CASE No. 1: If at least one of these values is equal to or greater than + 5 mg/st
– Check the valve clearance.
– Check the condition of the engine and the compressions (using the Clip diagnostic tool or a compression
gauge).
– If the compression test reveals a cylinder fault, carry out the necessary repairs.
– If the compression is correct, check that the injector is fitted correctly (see MR 364 (Mégane II), 370 (Scénic II)
or 395 (Laguna II), Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting)
In particular, check that each injector has one compression washer.
Check the fuel regulation again for each injector (individual correction).
– If not, replace the injector and check for the sealing washer. Modify the IMA code using command SC002 Enter
injector codes (see Interpretation of commands).
–Apply Part B of this test to confirm the fault finding.
EDC16_V50_TEST9/EDC16_V58_TEST9/EDC16_V5C_TEST9/EDC16_V18_TEST9/EDC16_V1C_TEST9/EDC16_V20_TEST9