fuel RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16 User Guide

13B-81
MR-372-J84-13B200$288.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF053
CONTINUED 1
Check the continuity and insulation from + 12 V of connection 3HI between components 120 and 1105.
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 the rail pressure sensor using the interpretation of DF007 Rail pressure sensor circuit.
If the fault is still present, replace the injection pump.
CC.0
CO
NOTESNone
Check the rail pressure regulator connectors.
Check the injection computer connections.
Check the low pressure circuit by running test 3 Low pressure circuit check.
Check the conformity of the fuel used by running test 11 Diesel fuel conformity check.
Check the overpressure valve, run test 12 Incorrect operation of the overpressure valve,
Check the operation of the injectors, run test 9 Incorrect injector operation.
Repair if necessary.
Measure the resistance of the rail pressure regulator between connections 3HI and 3FB (Mégane II and
Laguna II) or 3FB1 (Scénic II).
Replace the injection pump if its resistance is not 3 ohms ± 1 Ω at 20°C.
Check the continuity and insulation to earth on connection 3HI between components 120 and 110 5.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-82
MR-372-J84-13B200$288.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF053
CONTINUED 2
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.
With the ignition on, check for + 12 V after relay on the connection 3FB (Mégane II and Laguna II) or 3FB1
(Scénic II) of the rail pressure regulator.
If there is no + 12 V on connection 3FB (Mégane II and Laguna II) or 3FB1 (Scénic II), check the continuity
and absence of interference resistance of the following connections:
– connection code 3FB between components 11 05 and 983 (Laguna II),
– connection code 3FB1 between components 110 5 and 1337 (Scénic II),
– connection code 3FB between components 11 05 and 1337 (Mégane II).
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 the rail pressure sensor using the interpretation of DF007 Rail pressure sensor circuit.
If the fault is still present, replace the injection pump.
1.DEF
NOTESNone
Check the rail pressure regulator connectors.
Check the injection computer connections.
Check the low pressure circuit by running test 3 Low pressure circuit check.
Check the conformity of the fuel used by running test 11 Diesel fuel conformity check.
Check the overpressure valve, run test 12 Incorrect operation of the overpressure valve,
Check the operation of the injectors, run test 9 Incorrect injector operation.
Repair if necessary.
Measure the resistance of the pressure regulator between connections 3HI and 3FB (Mégane II and Laguna II)
or 3FB1 (Scénic II).
Replace the injection pump if its resistance is not 3 ohms ± 1 at 20°C.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-83
MR-372-J84-13B200$288.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
*OCR: Opening Cyclic RatioDF053
CONTINUED 3
Check the continuity and absence of interference resistance of the following connections:
– connection code 3HI between components 120 and 1105,
– connection code 3FB (Mégane II and Laguna II) or 3FB1 (Scénic II) between components 1105 and 983
(Laguna II) or 1337 (Mégane II and Scénic II).
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 the rail pressure sensor using the interpretation of DF007 Rail pressure sensor circuit.
Repair if necessary.
If the fault is still present, check that the computer output is working correctly.
→Either using an ammeter:
With the regulator connected, connect the current clamp to connection 3FB (Mégane II and Laguna II) or 3FB1
(Scénic II) of the regulator (in the direction of the current).
Clear any rail pressure regulator faults and run command AC011 Rail pressure regulator.
The ammeter should display ten cycles of two successive currents: ~ 0.6A then ~ 2A.
→Or using a voltmeter:
With the regulator connected, connect the negative terminal of the voltmeter to connection 3HI of the rail pressure
regulator and the positive terminal to connection 3FB (Mégane II and Laguna II) or 3FB1 (Scénic II).
Clear any fuel pressure solenoid valve faults, then run command AC011 Rail pressure regulator:
The voltmeter should display two successive voltage readings:
~3.15V for an OCR* of 25% then ~9.45V for an OCR* of 75% (ten cycles)
→Or using an oscilloscope (range 5 V/division and time base 1 ms/division):
With the regulator connected, connect the negative terminal of the oscilloscope to the battery earth and the
positive terminal to connection 3HI of the fuel pressure solenoid valve, clear any rail pressure regulator faults, and
run command AC011 Rail pressure regulator:
the oscilloscope should display a square pulse signal with an amplitude of 12.5 V at a frequency of 185 Hz (with
an OCR* alternating successively from 25 to 75%).
if the measurement does not show any control or continuous voltage, contact the techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-84
MR-372-J84-13B200$288.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF053
CONTINUED 4
2.DEF A
8.DEF
NOTESNone
Check the rail pressure regulator connectors.
Check the injection computer connections.
Check the low pressure circuit by running test 3 Low pressure circuit check.
Check the conformity of the fuel used by running test 11 Diesel fuel conformity check.
Check the overpressure valve, run test 12 Incorrect operation of the overpressure valve.
Repair if necessary.
Measure the resistance of the pressure regulator between connections 3FB (Mégane II and Laguna II) or 3FB1
(Scénic II) and 3HI.
Replace the injection pump if its resistance is not 3 ohms ± 1 Ω at 20°C.
Check the continuity and absence of interference resistance on the following connections:
– connection code 3HI between components 120 and 1105,
– connection code 3FB (Mégane II and Laguna II) or 3FB1 (Scénic II) between components 1105 and 983
(Laguna II) or 1337 (Mégane II and Scénic II).
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.
In the event of rail overpressure:
Check the operation of the injectors by running test 9 Poor injector operation.
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator. Check
the conformity of parameter PR038 Rail pressure.
If these checks do not reveal any faults, and if the fault is still present, replace the rail pressure regulator.
in the event of rail underpressure:
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator. Check
the conformity of parameter PR038 Rail pressure.
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 that there are no air bubbles between the filter and the high pressure pump.
Check the low and high pressure diesel fuel circuit sealing (visual inspections, etc.) pump housing, pressure relief
valve, pipes, rail and injector unions, injector wells, etc.
Check the conformity of the seal fitting on the pressure regulator.
Check the operation of the injectors by running test 9 Poor injector operation.
Carry out the necessary operations.
If the fault is still present replace the rail pressure regulator.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-94
MR-372-J84-13B200$324.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of faults
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 and quality of the fuel by running test 11 Diesel fuel conformity check.
Check the sealing of the tank and the low pressure circuit by running test 3 Low pressure circuit check.
A. Check that the water in diesel detection sensor is correctly 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 reappear, end of fault finding procedure.
– If the fault reappears, go to step C.
b) If the water detection sensor is not present:
–Insulate the electrical connector not connected to the vehicle (risk of humidity, oxidation, and erratic
appearance of faults).
Check that the configuration reading LC065 Water in diesel fuel sensor is WITHOUT.
If LC065 Water in diesel fuel sensor 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 reappear, end of fault finding procedure.
c) If the sensor is correctly connected:
– Bleed the diesel filter unit (see MR 395 (Laguna II), 370 (Scénic II) or 364 (Mégane II), Mechanical, 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 reappear, end the fault finding procedure.
d)If the fault reappears:
– Check the continuity and absence of interference resistance on connection 3WT between components 414
and 120.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF057/EDC16_V58_DF057/EDC16_V5C_DF057/EDC16_V18_DF057/EDC16_V1C_DF057/EDC16_V20_DF057EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
MR-372-J84-13B200$324.mif

13B-95
MR-372-J84-13B200$324.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF057
CONTINUED
Check the supply of the water detection sensor between connections 3FB and N.
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 none of these checks reveal any faults:
– Replace the water detection sensor (see MR 395 (Laguna II), 370 (Scénic II) or 364 (Mégane II), Mechanical,
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 (turns, hills)
may cause erratic illumination of the injection fault warning light.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-97
MR-372-J84-13B200$324.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
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 for 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 command SC002 Enter injector codes (see Interpretation of commands).
Check the engine compression.
Repair if necessary.
Check the valve clearance and adjust if necessary.
When dealing with a number of misfiring faults, check the fuel conformity by running test 11 Diesel fuel
conformity check.
Visually inspect the return pipe of injector no. 1.
Repair if necessary.
If the fault is still present, run test 9 Poor 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_V50_DF059/EDC16_V58_DF059/EDC16_V5C_DF059/EDC16_V18_DF059/EDC16_V1C_DF059/EDC16_V20_DF059

13B-98
MR-372-J84-13B200$324.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF060
PRESENT
OR
STOREDMISFIRING 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 for 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.
Refer to the interpretation of command SC002 Enter injector codes (see Interpretation of commands).
Check the engine compression.
Repair if necessary.
Check the valve clearance and adjust if necessary.
When dealing with a number of misfiring faults, check the fuel conformity by running test 11 Diesel fuel
conformity check.
Visually inspect the injector no. 2 return pipe.
Repair if necessary.
If the fault is still present, run test 9 Poor 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_V50_DF060/EDC16_V58_DF060/EDC16_V5C_DF060/EDC16_V18_DF060/EDC16_V1C_DF060/EDC16_V20_DF060

13B-99
MR-372-J84-13B200$324.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF061
PRESENT
OR
STOREDMISFIRING 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 for 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.
Refer to the interpretation of command SC002 Enter injector codes (see Interpretation of commands).
Check the engine compression.
Repair if necessary.
Check the valve clearances and adjust them if necessary.
When dealing with a number of misfiring faults, check the fuel conformity by running test 11 Diesel fuel
conformity check.
Visually inspect the injector no. 3 return pipe.
Repair if necessary.
If the fault is still present, run test 9 Poor 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_V50_DF061/EDC16_V58_DF061/EDC16_V5C_DF061/EDC16_V18_DF061/EDC16_V1C_DF061/EDC16_V20_DF061

13B-100
MR-372-J84-13B200$324.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF062
PRESENT
OR
STOREDMISFIRING ON CYLINDER 4
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 DF043 Cylinder 4 injector circuit first, if it is present or stored.
Check that the IMA code for injector no. 4 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 command SC002 Enter injector codes (see Interpretation of commands).
Check the engine compression.
Repair if necessary.
Check the valve clearance and adjust if necessary.
When dealing with a number of misfiring faults, check the fuel conformity by running test 11 Diesel fuel
conformity check.
Visually inspect the injector no. 4 return pipe.
Repair if necessary.
If the fault is still present, run test 9 Poor 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_V50_DF062/EDC16_V58_DF062/EDC16_V5C_DF062/EDC16_V18_DF062/EDC16_V1C_DF062/EDC16_V20_DF062