2011 RENAULT SCENIC lock

13B - 195
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
AC002
EGR SOLENOID VALVE
NOTESThis command enables the exhaust gas recirculation valve function to be checked.
Measure the resistance of the exhaust gas recirculation valve between tracks 1 and 5.
– If the resistance is not: 8 Ω ± 0.5 at 20 °C, replace the EGR valve.
Check the continuity and the absence of interference resistance of the following connections:
Injection computer brown 48-track connector B track L2 track 5 of the EGR solenoid valve connector
+ 12 V (UPC)track 1 of the EGR solenoid valve connector
Step 1: Mechanical check of EGR valve:
Remove the exhaust gas recirculation valve.
Run command AC002 EGR solenoid valve.
If, during the command:
– no valve movement is evident,
– the valve does not open or close completely,
Check that there are no particles blocking the movement of the piston.
If a particle was blocking the movement of the valve, run command AC002 EGR solenoid valve again and check
the valve is operating correctly.
If the valve is operating normally, run command RZ002 EGR Adaptives to reinitialise the valve operating values.
If the valve is jammed or irrevocably seized, replace the EGR valve.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_AC002/EDC16_V48_AC002/EDC16_V4C_AC002

13B - 197
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
AC004
TURBOCHARGING SOLENOID VALVE
NOTESThis command is run if a fault is detected in the turbocharging circuit.
This command checks that the turbocharger and the control circuit are working properly.
Introduction
1 - Check the sealing of the high-pressure air circuit:
Pipe not joined or pierced, pressure sensor disconnected or poorly fitted (seal present), intercooler pierced.
To test the intercooler: stabilise the engine speed between 3,500 and 4,000 rpm with the vehicle stopped and
check that there are no leaks.
Check the resistance of the turbocharging limitation solenoid valve between tracks 1 and 2:
Replace the solenoid valve if the resistance is not: 15.4 Ω ± 0.7 at 20 °C.
Check the injection computer connections.
Check for continuity and the absence of interference resistance on the following connection:
Injection computer grey 32-track connector C, track E1 Track 1 turbocharging solenoid valve
Repair if necessary.
Check for the presence of +12V after relay on track 2 of the turbocharging solenoid valve.
2 - Turbocharger control circuit check
– With the engine stopped, make sure that the control rod is in the rest position.
– Start the engine and make sure that the control rod operates to the high stop.
(when the engine is switched off, the control rod should return to the idle position)
If the control rod does not move correctly, carry out the following checks:
1) Vacuum pressure command check:
– 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.
– Stop the engine, reconnect the inlet hoses and go to step no. 2.
2) Solenoid valve control check:
– Disconnect the solenoid valve outlet hose.
– Start the engine and run it at a stable idle speed.
– Place your hand on the solenoid valve and block the outlet union with your thumb.
– If you notice no solenoid valve vibration, check the operation of the computer output (step 5).
3) Solenoid valve operation check:
– Connect the pressure gauge to the solenoid valve outlet union.
– Start the engine and run it at a stable idle speed.
If the vacuum pressure does not reach 800 mbar ± 100, replace the solenoid valve.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_AC004/EDC16_V48_AC004/EDC16_V4C_AC004

13B - 198
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. AC004
CONTINUED
Turbocharger control circuit check (continued)
4) Turbocharging operation check:
a) Connect vacuum pump to the hoses connected to the turbocharger control diaphragm,
– Apply a vacuum pressure of 800 mbar:
If there is a leak, replace the turbocharger (diaphragm included).
b) Check the movement of the control rod (See MR 364, 12B, Mechanical, Turbocharging).
If the control rod is sticking, replace the turbocharger.
c) Engine cold and switched off:
– Remove the turbocharger inlet duct and check that the compressor turns freely on the axis.
d) If the fault is still present:
– Check that the exhaust manifold is not leaking.
– Check that the exhaust is not blocked.
Carry out the necessary repairs.
5) Computer output check (solenoid valve connected):
This operation can only be carried out if the checks indicated in step no. 2 are not conclusive.
Using a voltmeter:
– Connect the voltmeter earth to track 2 of the solenoid valve and the positive cable to track 1.
– Clear any solenoid valve fault then run command AC004:
The voltmeter should display ten cycles of two successive voltages ~ =battery voltage X OCR* current.
either: ~2.5V (OCR for 20 %) then ~8.7V (OCR for 70 %).
Or using an oscilloscope (range 5 V/division and with time base 1 ms/division):
– Connect the earth of the oscilloscope to the battery earth and the positive test pin to track 2 of the solenoid valve.
– 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 alternating 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.
AFTER REPAIRRestart the conformity check from the beginning.

13B - 201
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
AC014
DAMPER FLAP
NOTESThis command enables the damper flap function to be checked.
– Measure the resistance of the inlet flap valve solenoid valve between tracks 1 and 2.
Replace the solenoid valve if the resistance is not 46 Ω ± 3 at +25 °C.
–Check the continuity and the absence of interference resistance on the following connections:
Injection computer brown 48-track connector B track J4 Track 1 of damper flap solenoid valve
connector
+ 12 V (UPC)Track 2 damper flap solenoid valve
connector
A) Engine running at idle speed:
– Make sure that there is a vacuum pressure of: ~ 900 mb in the solenoid valve inlet hose.
Make the necessary repairs (vacuum pressure circuit conformity and seal).
B) With the vehicle ignition on, engine stopped:
– Check that the inlet flap is open.
If not, clean or replace the air vent unit.
– Disconnect the solenoid valve inlet and outlet hoses.
– Connect a vacuum pump to the inlet union and apply a vacuum pressure of ~ 900 mbar.
If there is a leak, replace the solenoid valve.
– Run command AC014.
– If the solenoid valve opens (vacuum pump pressure gauge returns to atmospheric pressure), go to step C.
– Otherwise, with the solenoid valve connected, check operation of the computer output with a voltmeter:
Voltmeter earth cabletrack 1 of the solenoid valve
Voltmeter positive leadtrack 2 of the solenoid valve
Clear any solenoid valve faults,
Run command AC014.
The voltmeter should display ten ON-OFF cycles (8.75 V then 2.5 V).
If the measurement is correct, replace the solenoid valve.
If the measurement shows is not controlled, contact the Techline.
C) Vehicle with ignition off:
– Connect a vacuum pump to the flap control diaphragm and apply a vacuum pressure of ~ 900 mbar:
– If the diaphragm does not maintain the vacuum pressure, replace the air vent unit (the diaphragm cannot be
disconnected).
– If the diaphragm maintains the vacuum pressure and the valve does not operate, clean or replace the air
vent unit.
– If the diaphragm maintains the vacuum pressure and the flap operates then operate it several times to ensure
that there is no blockage.
Check for clogging of the air vent unit and the valve, and clean if necessary.
AFTER REPAIRRepeat the conformity check from the start.
EDC16_V44_AC014/EDC16_V48_AC014/EDC16_V4C_AC014

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