2009 RENAULT SCENIC engine

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-88V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF055
CONTINUED 1
Check that the turbocharger and the control circuit are working:
–With the engine stopped, make sure that the control rod is in the resting position.
–Start the engine and make sure that the control rod actuates to the upper stop.
(when the engine stops, the control rod should return to the rest position).
If the control rod does not move correctly, carry out the following checks:
1Check the control vacuum pressure:
–disconnect the solenoid valve inlet hose and connect it to a pressure gauge,
–start the engine and stabilise it at idle speed,
–If the vacuum does not reach 800 mbar ± 100: check the vacuum pressure circuit from the vacuum pump,
–stop the engine, reconnect the inlet hose and proceed to step 2.
2Solenoid valve control check:
–Disconnect the solenoid valve outlet hose,
–start the engine and stabilise it at idle speed,
–place your hand on the solenoid valve and block the outlet connection with your thumb,
–if there is no detectable vibration of the solenoid valve, check that the computer output is operating correctly (see
DF054 Turbocharging solenoid valve control circuit 1.DEF).
3Solenoid valve operation check:
–Attach the pressure gauge to the solenoid valve outlet union,
–start the engine and stabilise it at idle speed,
–if the vacuum pressure does not reach 800 mbar ± 100, replace the solenoid valve.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-89V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF055
CONTINUED 2
2.DEF
NOTESPriority when dealing with a number of faults:
Deal with fault DF004 Turbocharger pressure sensor
circuit first if it is present or stored.
Check the turbocharging pressure sensor connections,
Check the connections of the turbocharging solenoid valve,
Check the injection computer connections.
Repair if necessary.
Check the conformity of the turbocharging pressure signal (refer to the interpretation of parameter PR041
Turbocharging pressure).
Make sure the turbocharging pressure relief solenoid valve is not jammed open:
–With the engine switched off, disconnect the inlet and outlet hoses from the solenoid valve.
–connect a vacuum pump to the inlet union and apply a vacuum pressure.
–if the vacuum pressure is not maintained: replace the solenoid valve.
Check that the turbocharger control rod has not seized:
–with the engine stopped, make sure the turbocharger control rod is in the rest position.
–apply a vacuum pressure of 800 mbar ± 100, to the hose connected to the turbocharger control diaphragm,
–if the diaphragm is affected by the vacuum, check the movement and setting of the turbocharger control rod (see
MR 364 (MEGANE II) and 370 (SCENIC II), Mechanical, 12B, Turbocharging).
If the control rod is seized, replace the turbocharger.
If the fault is still present, apply test 9 Air line at the turbocharger, then test 5 Turbocharger control solenoid
valve check and test 6 Turbocharger.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-93V3 MR-372-J84-13B250$405.mif
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF056
CONTINUED 3
Repair if necessary
If the fault is still present, apply test 3: Checking the turbocharged air inlet circuit and test 4: Air flow sensor,
–check that the damper valve is open (valve control pushing on the body of the air vent unit)
–with the flow sensor connected, the vehicle ignition on and engine stopped:
–check the voltage between tracks 2 and 5 of the air flow sensor:
If the value is not 0.6 V ± 0.1, replace the air flow sensor.
●Check the EGR valve is not jammed open:
–Deal with any faults.
–Use the conformity check and EMISSION CONTROL/OBD sub-function.
If these checks show that the valve is jammed or irrevocably seized, replace the EGR valve.
If no faults are revealed, but the fault is still present, replace the air flowmeter.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-94V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF057
PRESENT
OR
STOREDWATER IN DIESEL FUEL DETECTOR CIRCUIT
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Check the conformity of the fuel used by applying test 10 Diesel fuel conformity check.
Check the sealing of the tank and low pressure circuit by applying test 2 Low pressure circuit check.
A) Make sure the water in diesel fuel detection sensor is properly connected.
–If not, clear the fault,
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds.
–If the fault does not recur, end the fault finding procedure.
–If the fault does recur, go to step C.
B) If the water detection sensor is absent:
–Insulate the electrical connector not connected to the vehicle (risk of dampness, oxidation, and erratic
appearance of faults).
Check that the configuration reading LC065 Water detected in the diesel is NONE.
If LC065 is WITH, run command RZ005 Programming to reinitialise the vehicle configurations.
–Clear the faults.
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds.
–If the fault does not recur, end the fault finding procedure.
C) If the sensor is properly connected:
–Bleed the diesel filter unit (see MR 364, Mechanics, 13A, Fuel supply).
–Clear the fault.
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds.
–If the fault does not recur, end the fault finding procedure.
D) If the fault recurs:
–Check for continuity and the absence of interference resistance on the connection between:
Injection computer 32-track grey connector track A2 Track 3 of the water detection sensor
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF057

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-95V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF057
CONTINUED
Check the power supply to the water detection sensor:
+ 12 V after relay track 1 water detection sensor
earth track 2 water detection sensor
Carry out the necessary repairs.
If none of these checks reveal any faults:
–Replace the water detection sensor (see MR 364, Mechanics, 13A, Fuel supply).
–Clear the fault.
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds,
to confirm the repair.
Note:
if the level of water in the fuel filter unit is lower than the sensor electrodes, certain driving conditions (on a bend,
hill) may causethe injection warning light to light up erratically.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-96V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF059
PRESENT
OR
STOREDCOMBUSTION MISFIRES ON CYLINDER 1
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present, engine performance is reduced and engine instabilities may
occur.
Priority when dealing with a number of faults:
Deal with fault DF040 Cylinder 1 injector circuit first, if it is present or stored.
Check that the IMA code of injector no. 1 has been entered correctly and that it matches the code marked on the
corresponding injector.
Enter the code to the unprogrammed/incorrectly programmed injector, if necessary.
Refer to the interpretation of commands, SC002 Entering injector codes.
Check the engine compression.
Repair if necessary.
Check the valve clearance and adjust if necessary.
When dealing with several combustion misfire faults, check the conformity of the fuel by applying test 10 Diesel
fuel conformity check.
Visually inspect the return pipe of injector no. 1.
Repair if necessary.
If the fault is still present, carry out test 8 INCORRECT INJECTOR OPERATION.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF059

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-97V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF060
PRESENT
OR
STOREDCOMBUSTION MISFIRING ON CYLINDER 2
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present, engine performance is reduced and engine instabilities may
occur.
Priority when dealing with a number of faults:
Deal with fault DF041 Cylinder 2 injector circuit first, if it is present or stored.
Check that the IMA code of injector no. 2 has been entered correctly and that it matches the code marked on the
corresponding injector.
Enter the code to the unprogrammed/incorrectly programmed injector, if necessary.
Consult the interpretation of commands, SC002 Entering injector codes.
Check the engine compression.
Repair if necessary.
Check the valve clearance and adjust if necessary.
When dealing with several combustion misfire faults, check the conformity of the fuel by applying test 10 Diesel
fuel conformity check.
Visually inspect the return pipe of injector no. 2.
Repair if necessary.
If the fault is still present, carry out test 8 INCORRECT INJECTOR OPERATION.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF060

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-98V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF061
PRESENT
OR
STOREDCOMBUSTION MISFIRING ON CYLINDER 3
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present, engine performance is reduced and engine instabilities may
occur.
Priority when dealing with a number of faults:
Deal with fault DF042 Cylinder 3 injector circuit first, if it is present or stored.
Check that the IMA code of injector no. 3 has been entered correctly and that it matches the code marked on the
corresponding injector.
Enter the code to the unprogrammed/incorrectly programmed injector, if necessary.
Consult the interpretation of commands, SC002 Entering injector codes.
Check the engine compression.
Repair if necessary.
Check the valve clearance and adjust if necessary.
When dealing with several combustion misfire faults, check the conformity of the fuel by applying test 10 Diesel
fuel conformity check.
Visually inspect the return pipe of injector no. 3.
Repair if necessary.
If the fault is still present, carry out test 8 INCORRECT INJECTOR OPERATION.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF061