check engine RENAULT SCENIC 2012 J95 / 3.G Engine And Peripherals EDC16CP33 Workshop Manual

13B-219
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF569
CONTINUED 1
1.DEF
2.DEF
3.DEF
NOTESNone.
If the specification of this fault is: 2.DEF: Turbocharging pressure too low, apply test 6: Fuel circuit return
valve check.
Continue fault finding, regardless of whether or not the fuel return rail has been replaced.
For the other specifications, move on to the next step.
If the loss of power was not noted during slight acceleration and if there was a loss of engine power during each
acceleration at full load, replace the diesel fuel injector return rail and its overpressure valve (see MR364
(Mégane II ph2), MR370 (Scénic II ph2), MR 395 (Laguna II ph2), 402 (Vel Satis ph2), 405 (Espace IV ph2)
Mechanical, 13B, Diesel fuel injector return rail: Removal - Refitting).
Check the condition of the turbocharging pressure sensor connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1071).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-220
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF569
CONTINUED 2
Check for continuity and absence of interference resistance of the following connections:
●3LQ between components 120 and 1071,
●3LP between components 120 and 1071,
●3LN between components 120 and 1071.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Test the high pressure fuel circuit:
Apply scenario SC035 High pressure fuel circuit fault finding.
To interpret the result, apply the interpretation of command SC035 (see Interpretation of commands).
With the engine stopped and ignition on, view parameters PR035 Atmospheric pressure and PR041
Turbocharging pressure.
If there is a difference of > 100 mbar, check that the atmospheric pressure reading is consistent (by comparison
with another vehicle for example).
If atmospheric pressure is consistent, replace the turbocharging sensor.
If not, contact the Techline.
Use the Monitool application: MT001 Turbocharging function to check the entire air line (only for Vdiag 04 and
44).
Apply Test 4 Turbocharged air inlet circuit check.
Run Test 7 Variable geometry turbocharger control.
Run Test 8 Turbocharger rotating part.
If the fault is still present, refer to the interpretation of parameter PR041 Turbocharging pressure.
If the fault is still present, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-221
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF645
PRESENT
OR
STOREDDAMPER VALVE POSITION REGULATION
1.DEF: Data inconsistency
2.DEF: Value outside permitted tolerance values
3.DEF: Damper valve jammed open
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– with the engine running,
– the battery voltage X > 8V.
Priorities when dealing with a number of faults:
– DF038 Computer,
– DF323 Damper valve,
– DF012 Sensor supply voltage no. 2,
– DF646 Damper valve position sensor.
Special notes:
If the fault is present:
–the level 1 warning light is lit (for Vdiag 20, 58, 24, 5C, 26, 28, 60 and 62),
– particle filter regeneration is inhibited.
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Check the condition and connection of the damper valve connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1461).
Check the condition and connection of the engine management computer connector (see Wiring Diagram
Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code
120).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
EDC16CP33_V18_DF645 / EDC16CP33_V1C_DF645 / EDC16CP33_V54_DF645 / EDC16CP33_V20_DF645 / EDC16CP33_V58_DF645 /
EDC16CP33_V5C_DF645 / EDC16CP33_V24_DF645 / EDC16CP33_V04_DF645 / EDC16CP33_V08_DF645 / EDC16CP33_V44_DF645 /
EDC16CP33_V4C_DF645 / EDC16CP33_V34_DF645 / EDC16CP33_V38_DF645 / EDC16CP33_V74_DF645 / EDC16CP33_V28_DF645 /
EDC16CP33_V62_DF645 / EDC16CP33_V26_DF645 / EDC16CP33_V60_DF645
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-222
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF645
CONTINUED
Check the continuity, insulation from earth and + 12 V and absence of interference resistance on the following
connections:
•3AAX between the components 120 and 1461,
•3AAY between components 120 and 1461,
•38KQ between components 120 and 1461,
•38KS between components 120 and 1461,
•38KP between components 120 and 1461.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check that the valve is not mechanically jammed (check that the valve is clean and that no component is
preventing it from closing; clean if necessary):
With the engine switched off, disconnect the air inlet hose from the damper valve.
Check that the valve is in the open position.
Start, then switch off the engine.
Check that the valve closes when the engine is switched off and then opens again when the engine has stopped.
If this does not happen, replace the damper valve.
Then run command SC036 Reinitialise programming and select Damper valve to reinitialise the valve's opening
and closing stops.
Check if the damper valve performs 3 opening/closing cycles.
Otherwise program the damper valve using command SC036 Reinitialise programming.
If the fault is still present, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-223
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF646
PRESENT
OR
STOREDDAMPER VALVE POSITION SENSORCC.0: Short circuit to earth
CO.0: Open circuit or short circuit to earth
CO.1: Open circuit or short circuit to +12 V
1.DEF: Open circuit or short circuit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the engine is started,
– a road test.
Priorities when dealing with a number of faults:
– DF012 Sensor supply voltage no. 2.
Special notes:
If the fault is present:
–the level 1 warning light is lit (for Vdiag 20, 58, 24, 5C, 26, 28, 60 and 62),
– particle filter regeneration is inhibited.
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
CO.1
1.DEF
NOTESNone.
Check the condition of the damper valve connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1461).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
EDC16CP33_V18_DF646 / EDC16CP33_V1C_DF646 / EDC16CP33_V54_DF646 / EDC16CP33_V20_DF646 / EDC16CP33_V58_DF646 /
EDC16CP33_V5C_DF646 / EDC16CP33_V24_DF646 / EDC16CP33_V04_DF646 / EDC16CP33_V08_DF646 / EDC16CP33_V44_DF646 /
EDC16CP33_V4C_DF646 / EDC16CP33_V34_DF646 / EDC16CP33_V38_DF646 / EDC16CP33_V74_DF646 / EDC16CP33_V28_DF646 /
EDC16CP33_V62_DF646 / EDC16CP33_V26_DF646 / EDC16CP33_V60_DF646
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-224
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF646
CONTINUED 1
Measure the resistances between connections38KQ and 38KP (potentiometer supply and potentiometer
earth) and between38KS and 38KP (potentiometer signal and potentiometer earth) of component 1461.
If the resistances of the damper valve are not between 290 Ω < X < 6 kΩ, replace the damper valve.
Then run command SC036: Reinitialise programming and select Damper valve to reinitialise the valve's
opening and closing stops.
Check the insulation from + 12 V and + 5 V between the following connections:
•38KP between components 120 and 1461,
•38KQ between components 120 and 1461,
•38KS between components 120 and 1461.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.
CC.0
CO.0
NOTESNone.
Check the condition of the damper valve connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1461).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-226
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF647
PRESENT
OR
STOREDEGR VALVE POSITION REGULATION1.DEF: EGR 1 offset inconsistency
2.DEF: EGR 2 offset inconsistency
3.DEF: Valve jammed closed
4.DEF: Valve jammed open
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the ignition is switched on.
– the engine is started,
– a road test,
– if the air flowmeter temperature > 5°C.
Priorities when dealing with a number of faults:
– DF209 EGR valve position sensor circuit,
– DF046 Battery voltage,
– DF012 Sensor supply voltage no. 2,
– DF272 EGR valve control circuit.
Special notes:
–the level 1 and EOBD (European On Board Diagnostic) warning lights are lit for
1.DEF, 2.DEF, and 4.DEF
– only the EOBD (European On Board Diagnostic) warning light is lit for 3.DEF,
– the EGR function is inhibited by the engine management computer,
– reduced performance for 2.DEF and 3.DEF or 1.DEF and 2.DEF (for Vdiags 5C, 58
and 24, and 20, 26, 28, 60, 62).
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF647 / EDC16CP33_V1C_DF647 / EDC16CP33_V54_DF647 / EDC16CP33_V20_DF647 / EDC16CP33_V58_DF647 /
EDC16CP33_V5C_DF647 / EDC16CP33_V24_DF647 / EDC16CP33_V04_DF647 / EDC16CP33_V08_DF647 / EDC16CP33_V44_DF647 /
EDC16CP33_V4C_DF647 / EDC16CP33_V34_DF647 / EDC16CP33_V38_DF647 / EDC16CP33_V74_DF647 / EDC16CP33_V28_DF647 /
EDC16CP33_V62_DF647 / EDC16CP33_V26_DF647 / EDC16CP33_V60_DF647
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-227
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF647
CONTINUED 1
1.DEF
2.DEFNOTESNone.
Check the condition of the EGR valve (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2,
Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1460 or 169).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance between connections 3EL and 3JM of component 1460 or 169.
If the resistance of the EGR valve is not between 1 kΩ < X < 7,5 kΩ, replace the EGR valve.
Measure the resistance between connections 3EL and 3GC of component 1460 or 169.
If the resistance of the EGR valve is not between 3.9 kΩ < X < 12.6 kΩ, replace the EGR valve.
After replacement, run command SC036 Reinitialise programming and select EGR valve to reinitialise the EGR
valve offsets.
Check the continuity and absence of interference resistance of the following connections:
•3GC between components 120 and 1460 or 169,
•3EL between components 120 and 1460 or 169,
•3JM between components 120 and 1460 or 169.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring,
otherwise replace the wiring.
Remove and clean the EGR valve, then refit the EGR valve and start the engine (see MR364 (Mégane II ph2),
MR370 (Scénic II ph2), MR 395 (Laguna II ph2), 402 (Vel Satis ph2), 405 (Espace IV ph2), Mechanical, 14A,
Emission control, Exhaust gas recirculation solenoid valve: Removal - Refitting).
If the fault is still present, replace the EGR valve then run command SC036 Reinitialise programming and select
EGR valve to reinitialise the EGR valve offsets.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-228
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF647
CONTINUED 2
3.DEF
4.DEFNOTESNone.
Remove and clean the EGR valve, then refit it and start the engine. (see MR364 (Mégane II ph2), MR370 (Scénic
II ph2), MR 395 (Laguna II ph2), 402 (Vel Satis ph2), 405 (Espace IV ph2) Mechanical, 14A, Emission control,
Exhaust gas recirculation valve: Removal - Refitting).
If the fault is still present, replace the EGR valve then run command SC036 and select EGR valve to reinitialise
the EGR valve offsets.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-229
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF651
PRESENT
OR
STOREDTURBINE UPSTREAM PRESSURE SENSOR CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Inconsistency
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– With the ignition on,
– when the engine is running.
Special notes:
If the fault is present:
– engine torque limited,
– the EGR function is inhibited by the engine management computer,
– the vehicle performance is reduced,
– particle filter regeneration is inhibited,
–the level 1 warning light is illuminated,
–the EOBD (European On Board Diagnostic) warning light is lit (for Vdiag 5C, 58,
24 and 20 (only for M9R761, M9R722, M9R760 and M9R724)).
Priorities when dealing with a number of faults:
DF011 Sensor supply voltage no. 1.
CO.0
NOTESNone.
Check the condition of the turbine upstream pressure sensor connector (component code 1299).
Check the condition of the engine management computer connector (component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
EDC16CP33_V18_DF651 / EDC16CP33_V1C_DF651 / EDC16CP33_V54_DF651 / EDC16CP33_V20_DF651 / EDC16CP33_V58_DF651 /
EDC16CP33_V5C_DF651 / EDC16CP33_V24_DF651 / EDC16CP33_V28_DF651 / EDC16CP33_V62_DF651 / EDC16CP33_V26_DF651 /
EDC16CP33_V60_DF651
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62