2011 RENAULT SCENIC engine

13B-77
MR-372-J84-13B200$288.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of faults
DF050
PRESENT
OR
STOREDBRAKE SWITCH CIRCUIT
1.DEF: Open circuit or short circuit
2.DEF : Inconsistent signal
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the brake pedal is depressed, or during a road test.
Special notes:
If the fault is present, the cruise control/speed limiter is deactivated.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
1. DEF
NOTESNone
Check the brake pedal switch connections.
Check the condition and adjustment of the brake pedal switch.
Repair if necessary.
Check the conformity of the brake light switch:
For Mégane II and Scénic II without ESP:
Brake pedal released:
– continuity between connections 5A and BPT,
– infinite resistance between connections 65A and SP17.
Brake pedal depressed:
– infinite resistance between connections 5A and BPT,
– continuity between the connections 65A and SP17.
For Mégane II and Scénic II with ESP:
Brake pedal released:
– continuity between connections 5A and BPT,
– infinite resistance between connections 65G and SP17.
Brake pedal depressed:
– infinite resistance between connections 5A and BPT,
– continuity between the connections 65G and SP17.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF050/EDC16_V58_DF050/EDC16_V5C_DF050/EDC16_V18_DF050/EDC16_V1C_DF050/EDC16_V20_DF050EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C

13B-79
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
DF051
PRESENT
OR
STOREDCRUISE CONTROL/SPEED LIMITER FUNCTION
1.DEF: Inconsistent signal
2.DEF: Inconsistent vehicle speed
3.DEF: Steering wheel controls
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:
The cruise control/speed limiter function is inhibited.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
If the fault is present, refer to the interpretation of the following statuses:
– ET042 Cruise control/speed limiter.
– ET415 Deactivation of cruise control/speed limiter.
Check that by pressing the buttons the statuses change and that, with the ignition switched on, all the values are
correct.
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_DF051/EDC16_V58_DF051/EDC16_V5C_DF051/EDC16_V18_DF051/EDC16_V1C_DF051/EDC16_V20_DF051

13B-80
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
PRESENT
OR
STORED
RAIL PRESSURE REGULATION FUNCTION
CC.1: Short circuit to + 12 V
CC.0: Short circuit to earth
CO: Open circuit
1.DEF: Internal electronic fault
2.DEF: Pressure measured too low
3.DEF: Pressure measured too high
4.DEF: Insufficient pressure
5.DEF: Pressure < minimum
6.DEF: Pressure > maximum
7.DEF: Significant pump control
8.DEF: Above maximum threshold
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the engine is started,
– a road test,
– an actuator command AC011 Rail pressure regulator.
Special notes:
If the fault is present:
– it is not possible to start the engine,
– engine stops if already started,
–if 3.DEF is present, the level 1 warning light is lit,
– if one of the other faults is present, the level 2 warning light is lit.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
CC.1
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 at 20°C.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF053/EDC16_V58_DF053/EDC16_V5C_DF053/EDC16_V18_DF053/EDC16_V1C_DF053/EDC16_V20_DF053

13B-85
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
DF054
PRESENT
OR
STORED
TURBOCHARGING SOLENOID VALVE CONTROL CIRCUIT
CC.1: Short circuit to +12 V
CC.0: Short circuit to earth
CO: Open circuit
1.DEF: Internal electronic fault
2.DEF : Inconsistent signal
3.DEF: Below minimum threshold
4.DEF: Above maximum threshold
5.DEF: Permanent high signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the engine is started,
– a road test,
– actuator command AC004 Turbocharging solenoid valve.
Special notes:
If the fault is present:
– turbocharging is no longer authorised,
– the EGR function is inhibited,
– the vehicle performance is reduced,
– the level 1 warning light is lit,
–If CC.0 is present, the OBD warning light will come on after three consecutive
driving cycles (starting + 5 seconds, switch off the ignition and wait for 1 minute).
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors
IMPORTANT
This fault can result in a rapid and significant fouling of the particle filter.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF054/EDC16_V58_DF054/EDC16_V5C_DF054/EDC16_V18_DF054/EDC16_V1C_DF054/EDC16_V20_DF054

13B-88
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
DF055
PRESENT
OR
STOREDTURBOCHARGING PRESSURE REGULATION CIRCUIT
1.DEF: Pressure too low
2.DEF: Pressure too high
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:
– turbocharging is no longer authorised,
– the EGR function is inhibited,
– the level 1 warning light is illuminated.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors
IMPORTANT
This fault can result in a rapid and significant fouling of the particle filter.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF055/EDC16_V58_DF055/EDC16_V5C_DF055/EDC16_V18_DF055/EDC16_V1C_DF055/EDC16_V20_DF055

13B-89
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
DF055
CONTINUED 1
1.DEF
NOTESNone
Check the turbocharging pressure sensor connections,
Check the connections of the turbocharging solenoid valve,
Check the injection computer connections.
Repair if necessary.
Check the sealing of the high pressure air circuit:
– disconnected or pierced pipes,
– pressure sensor disconnected or poorly fitted (seal present),
– intercooler pierced (to check the intercooler: with the vehicle stopped, stabilise the engine speed between 3500
and 4000 rpm and check that there are no leaks).
Check the conformity of the turbocharging pressure signal and run test 2Air line at the turbocharger, test 6
Turbocharger control solenoid valve check and test 7 Turbocharger.
Check that the turbocharger and the control circuit are working:
– With the engine stopped, check that the control rod is (in the rest position the control rod is retracted).
– start the engine and check that the control rod disengages and pulls on the turbocharger geometry (when the
engine is stopped, the control rod should return to the rest position).
If the control rod does not move correctly, carry out the following checks:
1. Check 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 is not between 700 mbar < X < 900 mbar, check the vacuum circuit from the vacuum pump,
– Stop the engine, reconnect the intake hose and proceed to step 2.
2. Solenoid valve control check:
– Disconnect the solenoid valve outlet hoses,
– 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).
3. Solenoid valve operation check:
– Connect the pressure gauge to the solenoid valve outlet union,
– start the engine and stabilise it at idle speed,
– if the vacuum is not 700 mbar < X < 900 mbar, replace the solenoid valve.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-90
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
DF055
CONTINUED 2
2.DEF
NOTESPriority when dealing with a number of faults:
Deal with fault DF004 Turbocharging 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, check that the turbocharger control rod is in the rest position (the control rod
engaged),
– apply a vacuum of 700 mbar < X < 900 mbar to the hose connected to the turbocharger control diaphragm,
– if the diaphragm retains the vacuum, check the movement and setting of the turbocharger control rod (see MR
364 (Mégane II), MR 370 (Scénic II), MR 395 (Laguna II), Mechanical, 12B, Turbocharging).
If the control rod is seized, replace the turbocharger.
If the fault is still present, run test 2 Air line at the turbocharger, test 6 Turbocharger control solenoid valve
check and test 7 Turbocharger.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-93
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
DF056
CONTINUED 2
1.DEF
NOTESNone
2.DEFConditions for applying the fault finding procedure to a
stored fault:
The fault is declared present after the ignition has been
switched off for 40 seconds.
Check the air flowmeter connections.
Check the injection computer connections.
Repair if necessary
Check for continuity and the absence of interference resistance of the following connections:
– connection code 3KJ,
– connection code3DV,
– connection code3DW,
– connection code 3DU (Mégane II and Scénic II),
between components 120 and 799.
– connection code 3FB (Laguna II and Mégane II) or 3FB2 (Scénic II) between components 799 and 983
(Laguna II) or 1337 (Mégane II and Scénic II).
– connection code NT (Laguna II) between component 799 and the chassis earth NT.
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 the fault is still present, run test 4 Checking the turbocharged air inlet circuit and test 5 Air flowmeter,
check that the damper valve is open (valve control resting against the air vent unit),
with the flowmeter connected, the vehicle ignition on and engine stopped,
check the voltage between connections 3DW and 3DV of the air flowmeter:
Replace the air flow sensor if its value is not 0.5 V < X < 0.7 V.
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 flow sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.