2011 RENAULT SCENIC injector

13B - 190
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
SC002
ENTER INJECTOR CODES
NOTESThis command is carried out after the replacement of the injectors, and only if the
vehicle is configured with IMA (ET104 Injector code use YES).
If this command is not run, the fault DF276 Injector code programming will be
present.
IMPORTANT
Letters Q and J, and figures 0 and 9 are not used in IMA codification.
If these characters are used the entry will be invalid.
Cylinder no. 1 is the cylinder located at the engine flywheel end.
Procedure to be followed:
– Read the 6-character alphanumeric codes etched on the upper section of the injector bodies.
– 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 appear in neither the Current column nor the Desired column, check the codes read and
make sure the data has been entered correctly.
– Exit fault finding mode.
– Switch off the ignition and wait 30 seconds.
– Switch the ignition back on and check for faults.
–The DF276 Injector code programming should be stored.
If the fault is still present, the command has not been run correctly.
Start the procedure again and follow the instructions.
Switch off the ignition.
If all these checks still do not enable the command to be confirmed, contact the Techline.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_SC002/EDC16_V48_SC002/EDC16_V4C_SC002

13B - 191
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
SC003
SAVE COMPUTER DATA
NOTESThe data is saved before computer reprogramming or the computer is replaced.
Selecting this command saves the following vehicle-specific data:
– Vehicle idle speed.
– Injector calibration codes (if the vehicle is fitted with IMA).
– Programming of exhaust gas recirculation valve data.
– Options available on the vehicle and managed by the computer (Example: Air conditioning).
This information will be saved in the CLIP tool.
●Before replacing or reprogramming the computer:
–Select SC003 SAVE COMPUTER DATA.
– if the following message appears: backup file exists, do you want to overwrite it?:
(this file corresponds to the last save carried out on the tool)
Select YES.
When the save has been performed, replace the computer or carry out the programming then proceed to the next
step.
Once the backup is complete, run the command SC001 Write backed up data to reconfigure the computer.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_SC003/EDC16_V48_SC003/EDC16_V4C_SC003

13B - 199
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
* Opening Cyclic Ratio AC011
RAIL PRESSURE REGULATOR
NOTESThis command enables the operation of the injector high-pressure regulator circuit to
be checked.
Step 1
Measure the pressure regulator resistance between tracks 1 and 2.
– Replace the regulator if the resistance is not approximately: 3Ω ± 0.5 at 20 °C.
Check the continuity and the absence of interference resistance of the following connections:
Injection computer brown 48-track connectorB, trackM4 track 2 of the rail pressure regulator
connector.
+ 12 V after relaytrack 1 of the rail pressure regulator
connector.
If, when running command AC011, you can hear a slight whistling noise and the rattling from the regulator, go to
Step 2. Otherwise, ensure that the computer output is functioning correctly:
●Using a voltmeter:
With the solenoid valve connected, connect the voltmeter earth lead to track 2 of the fuel pressure solenoid valve
and the positive cable to track 1. Clear any fuel pressure solenoid valve faults, then run command AC011:
The voltmeter should display two successive voltages: ~ 2.5 V for an OCR at 20 % then ~ 8.75 V at an
OCR at 70 % (ten cycles)
●Or using an oscilloscope (range 5 V/division and with time base 1 ms/division):
With the solenoid valve connected, connect the earth of the oscilloscope to the battery earth and the positive test
pin to track 2 of the fuel pressure solenoid valve. Clear any fuel pressure solenoid valve faults then run command
AC011:
The oscilloscope should display a square-wave signal of 12.5 volts amplitude at a frequency of 185 Hz
(with an OCR going successively from 20 to 70 %).
– If the measurement is correct, replace the regulator.
– If the measurement is not correct, contact the Techline.
Step 2, next page
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_AC011/EDC16_V48_AC011/EDC16_V4C_AC011

13B - 200
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
AC011
CONTINUED
Step 2
In the event of rail overpressure:
Check the operation of the injectors (see Components test, Test 1 Injector test).
Check the operation of the rail pressure sensor: interpretation of fault DF007 Rail pressure sensor circuit.
If these checks do not reveal any faults, and if the fault is still present, replace the rail pressure sensor.
In the event of rail underpressure:
Check the operation of the rail pressure sensor: interpretation of fault DF007 Rail pressure sensor circuit.
Check the low pressure diesel circuit priming.
Check the conformity of the diesel filter connections.
Check the condition of the filter (clogging and water saturation).
Check there are no air bubbles between the filter and the high pressure pump.
Check the high-pressure diesel circuit sealing, pump, pipes, unions (visual inspections + odours, etc.):
pump housing, pressure release valve, pipes, rail and injectors unions, injector wells, etc.
Check the conformity of the seal fitting on the pressure regulator.
Check the operation of the injectors: see Component test, Test 1 Injector test.
Carry out the necessary repairs.
AFTER REPAIRCarry out a road test followed by a diagnostic tool check.
Repeat the conformity check from the start.

13B-205
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 2Starting faults
(or starting impossible)
NOTESBefore dealing with this customer complaint, check that there are no faults,
and he conformity (or otherwise) of the parameters and statuses using the
diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Is starting difficult or impossible?
difficult
Check the engine earths.
Make sure that the engine speed reaches 250 rpm when the starter motor is operated, displayed in
the parameter screen.
Ensure that the correct fuel is being used. Run test 5 Diesel fuel conformity check.
Check the conformity of the fuel filter connections.
Ensure that the fuel filter is not saturated with water.
Check there are no air bubbles between the filter and the high pressure pump.
Check the operation of the preheating unit and heater plugs with command AC001 Preheating unit.
Check the condition of the air filter (clogging).
Check the seal of the high-pressure diesel circuit, pump, pipes, unions (visual checks + odours).
Check the position of the EGR valve: jamming or mechanical seizure.
Check the consistency of the signal from the engine coolant temperature sensor.
Check that the pressure regulator is working correctly (see the interpretation of command AC011 Rail
pressure regulator).
Check the operation of the injectors (too much return leakage, clogging, seizing) referring to Component
test, Test 1 Injector Test.
Check the compression balance, according to current consumption during the starting phase
(Compression test menu on the Clip tool).
In the event of imbalance, use a compression gauge to refine the reading (see the procedure in the Workshop
Repair Manual). After the operation, clear the faults caused by disconnecting the regulator and the heater
plugs.
impossible
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP2 / EDC16_V48_ALP2 / EDC16_V4C_ALP2
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-207
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 3 Injection noise
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.
If the injection noise occurs after starting from cold:
Check the low pressure diesel circuit priming.
Check the fuel heater supply.
Check the operation of the preheating system.
Check that fuel and engine temperatures are consistent.
If the complaint is still present, check the rail pressure (Parameter menu) and apply the interpretation
of command AC011 Rail pressure regulator.
If the injection noise occurs at idle speed:
Check the condition of the injector connector and pressure regulator terminals.
Check the conformity of the air flow signal (consult parameter PR018 Estimated air flow).
Check the condition of the EGR valve (clogging, blocked, seized).
If the complaint is still present, perform the injector fault finding procedure with Test 1 Injector test.
Does the injection noise occur at all engine speeds?
Carry out fault finding on the injectors with Test 1 Injector Test.
Check the condition of the injector connector and pressure regulator terminals.
Ensure that the correct fuel is being used.
Check the conformity of the air flow signal (consult the interpretation of parameter PR132 Air flow).
If the customer complaint is still present, check the rail pressure (parameter menu) and apply the interpretation
of command AC011 Rail pressure regulator.
If the injection noise occurs at transitional speed:
If the engine races during gear changes, check the conformity of the clutch switch.
When changing gear during a road test, display parameter PR017 Fuel flow. if it varies without greatly affecting
the rail pressure, perform the fault finding procedure for AC011 Rail pressure regulator.
If the fault is still present, carry out a fault finding check on the injectors (seeTEST 1).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP3 / EDC16_V48_ALP3 / EDC16_V4C_ALP3EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-208
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 4 Poor performance
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.
IMPORTANT
In the event of the engine overheating above 11 0 ° C, the computer deliberately limits the fuel flow, and supplies
the fan assembly until the battery is completely discharged.
Is the poor performance accompanied by smoke?
YES
Check:
– That the EGR valve is not jammed in the open position.
– That the injectors are properly mounted (presence and conformity of the sealing washer).
Is the engine running on all cylinders?
NO
Check that the injectors are operating correctly. (See Test 1)
If the fault is still present
Check the conformity of the accelerator pedal position sensor, the brake pedal sensor, the atmospheric pressure
sensor and the EGR valve.
– Check the condition of the air filter.
– Check the consistency of the signal: from the flow sensor or the pressure/air temperature sensor, engine coolant
temperature sensor, fuel temperature sensor, engine speed.
No foreign bodies on the flowmeter grille (visual inspection only).
Check:
– That the diesel filter is not clogged.
– That there are no leaks in the low pressure and high pressure diesel circuits;
– that the air inlet circuit is complete (sealed and not obstructed),
– That the oil vapour rebreathing system is connected.
– The flow regulator (jammed/seized, consult the interpretation of command AC011 Rail pressure
regulator).
– The turbocharger control (jammed / seized), consult the interpretation of command
AC004Turbocharging solenoid valve,
– Check the engine compressions (cylinder compression balance with the Compression test function on
the CLIP tool).
– Check that the exhaust pipe is not blocked.
NO
YES
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP4 / EDC16_V48_ALP4 / EDC16_V4C_ALP4
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-209
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 5 Irregular engine operation
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.
If the engine bucks or races during gear changes, check the conformity of the clutch switch.
If the fault is still present:
– Ensure that the correct fuel is being used. Run test 5 Diesel fuel conformity check.
– Check the low pressure diesel circuit priming.
– Check the conformity of the low-pressure circuit connections.
– Check the conformity of the diesel filter and that it is not saturated with water (replace the filter if necessary).
– Check that there are no air bubbles between the filter and the high pressure pump.
– Check the conformity of the rail pressure (warm engine):
± 25 bar around the rail pressure value at idle speed, (the minimum to maximum variations in the rail
pressure at idle speed should not exceed 50 bar).
approximately 1350 bar under load with foot hard down on the accelerator.
In the event of a fault, apply the interpretation of command AC011 Rail pressure regulator.
Check the conformity of the air flow, apply the interpretation of parameter PR132 Air flow.
If the fault is still present:
– Check the injector operation using Test 1 Injector test.
– Check cylinder balancing using the CLIP function, Compression test physical measurement icon.
– Check engine compression where necessary.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP5 / EDC16_V48_ALP5 / EDC16_V4C_ALP5EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C