2010 RENAULT SCENIC engine

13B-258V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
In this case, it may be the solenoid valve dynamic specification which is at fault (atmospheric pressure
resetting time). Final fault finding is carried out by measuring this specification on a special bench.
ALP12
CONTINUED 2
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
Check that solenoid valve casing does not have any splashes of fluid on it which may impede the breather (water,
engine oil, gearbox oil, brake fluid, coolant, mud, dust, or any other substance).
Instructions:
–The solenoid valve must be set up 450 mm above the ground, in an area free from water, mud, or any other fluid.
–Cleaning with a high pressure jet is forbidden.
Is there coolant present? Follow the recommendations below.
Is the solenoid valve subjected to significant fluctuations
or impacts?
Instructions:
–The solenoid valve must be correctly secured to its
mounting.
Contact with the engine environment is forbidden.Follow the recommendations below.
Check the turbocharger regulation control (no partial jamming, etc.).
Does the turbocharger control work? Carry out the necessary repairs.
Replace the solenoid valve.
If the fault is still present, contact the Techline.
YES
NO
YES
NO
NO
YES

13B-259V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP13 Excessive consumption
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
Check that the fuel tank is correctly filled and that the fuel is correct: run TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.
Is the fuel temperature sensor leaking? Replace the fuel temperature
sensor, (see MR 364 (Mégane II),
MR 370 (Scénic II), MR 385
(Modus), MR 392 (Clio III), MR 411
(New Twingo), MR 417 (Kangoo 2),
Mechanical, 13B, Diesel injection,
Rail pressure sensor: Removal -
Refitting).
Check the low pressure circuit: run TEST 1 Low pressure circuit check.
Visually check that there are no leaks on the high pressure circuit: run TEST 7 High pressure circuit
sealing check.
Check the air inlet circuit: run TEST 5 Air inlet circuit check.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
YES
NO
A
DCM1.2_V48_ALP13/DCM1.2_V4C_ALP13/DCM1.2_V50_ALP13/DCM1.2_V54_ALP13/DCM1.2_V58_ALP13/DCM1.2_V5C_ALP13

13B-261V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP14Engine races when accelerator is released or when
changing gear
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
Check that there are no obstacles that might impede the accelerator pedal travel (carpet, point of resistance, etc.).
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
Visually check the condition of the engine wiring harness.
Is the clutch clearance set correctly? Carry out the necessary repairs.
Check that the engine has not sucked up its oil (engine racing).
Is the compression in order? Carry out the necessary repairs.
Check that the turbocharger is working properly.
Run TEST 11 Air line at the turbocharger.
Run TEST 10 Turbocharger control solenoid valve
check.
Run TEST 12 Turbocharger.
Is the turbocharger in order?Carry out the necessary repairs.
NO
YES
NO
YES
NO
YES
A
DCM1.2_V48_ALP14/DCM1.2_V4C_ALP14/DCM1.2_V50_ALP14/DCM1.2_V54_ALP14/DCM1.2_V58_ALP14/DCM1.2_V5C_ALP14

13B-263V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP15 Engine dies on pulling away
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
Is the clutch clearance set correctly? Carry out the necessary repairs.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
Check the air inlet circuit: run TEST 5 Air inlet circuit check.
Is the catalytic converter clogged or damaged? Replace the catalytic converter (see MR
364 (Mégane II), MR 370 (Scénic II),
MR 385 (Modus), MR 392 (Clio III),
MR 411 (New Twingo), MR 417
(Kangoo 2), Mechanical, 19B, Exhaust,
Catalytic converter: Removal - Refitting).
Check the low pressure circuit: run TEST 1 Low pressure circuit check.
Visually check the condition of the engine wiring harness.
Check the computer:
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) is 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.
Contact the Techline if the customer complaint is still present.
NO
YES
NO
DCM1.2_V48_ALP15/DCM1.2_V4C_ALP15/DCM1.2_V50_ALP15/DCM1.2_V54_ALP15/DCM1.2_V58_ALP15/DCM1.2_V5C_ALP15

13B-264V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP16 Engine rattling, noisy engine, turbocharger noise
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
If the noise arises from the turbocharger, apply Technical Note 5164A, Noise fault finding.
Note:
Pay close attention to faulty components that might result in unjustified replacement of the turbocharger.
For example, whistling does not necessarily indicate damage to the turbocharger (this could be coming from
the exhaust, the timing, the gearbox, etc.).
Check that the fuel tank is correctly filled and that the fuel is correct: run TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.

Is the compression in order? Carry out the necessary repairs.
Check the electrical conformity of the heater plugs (the resistance value of the heater plug must be less
than 2 ΩΩ Ω Ω
).
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
Check the air inlet circuit: run TEST 5 Air inlet circuit check.
NO
YES
A
DCM1.2_V48_ALP16/DCM1.2_V4C_ALP16/DCM1.2_V50_ALP16/DCM1.2_V54_ALP16/DCM1.2_V58_ALP16/DCM1.2_V5C_ALP16

13B-266V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP17 Blue, white or black smoke
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
Check that the fuel tank is correctly filled and that the fuel is correct: run TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.
Is the compression in order? Carry out the necessary repairs.
Check the electrical conformity of the heater plugs (the resistance value of the heater plug must be less than 2 Ω).
Is the catalytic converter clogged or damaged?Replace the catalytic converter (see MR 364
(Mégane II), MR 370 (Scénic II), MR 385
(Modus), MR 392 (Clio III), MR 411
(New Twingo), MR 417 (Kangoo 2),
Mechanical, 19B, Exhaust, Catalytic
converter: Removal - Refitting).
Run TEST 5 Inlet circuit check.
Run TEST 11 Air line at the turbocharger.
Run TEST 10 Turbocharger control solenoid valve check.
NO
YES
YES
NO
A
DCM1.2_V48_ALP17/DCM1.2_V4C_ALP17/DCM1.2_V50_ALP17/DCM1.2_V54_ALP17/DCM1.2_V58_ALP17/DCM1.2_V5C_ALP17

13B-267V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP17
CONTINUED
Run TEST 12 Turbocharger.
Is the turbocharger in order?Carry out the necessary repairs.
Visually check the condition of the engine wiring harness.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
Check the low pressure circuit: run TEST 1 Low pressure circuit check.
Check the computer:
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) is 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.
Contact the Techline if the customer complaint is still present.
A
NO
YES

13B-268V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP18 Oil leaks from the turbocharger
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.
Check the area around the turbocharger
Note:
An oil leak does not correspond always to a turbocharger fault, the oil leak can arise from the area around
the turbocharger.
Depending on the vehicle type, the best visual access will be either from above or from below.
1. Do not start the engine.
Check the area around the turbocharger and identify the origin of the leaks.
Clean the oil traces on the turbocharger.
2. Start the engine and let it warm up several minutes.
IMPORTANT
If the air filter was removed previously, refit it before starting the engine (risks foreign matter entering the air inlet
circuit).
Accelerate with no load several times, progressively increasing the duration before releasing the accelerator pedal.
Visually inspect the exterior condition of the fuel supply pipes and the turbocharger oil return and the area around it.
Identify the origin of the leaks.
Is an oil leak present at the air compressor inlet or outlet?
Check the air compressor inlet or outlet
Check for a loose interface (inlet or outlet) that is the cause of the air leak.
Note:
It is normal to find oil traces inside the pipes at the turbocharger inlet or outlet,
because the air entering the compressor is laden with oil from the engine
rebreathing circuit.
Is the suspected interface properly tightened?Tighten the interface
or the concerned pipe.
End of procedure.
Replace the pipe concerned (see MR 364 (Mégane II), 370 (Scénic II), 392 (Clio III), 385 (Modus), 411
(New Twingo), or 417 (Kangoo II), Mechanical, 12B Turbocharging).
YES
NO
A
NO
YES
DCM1.2_V48_ALP18/DCM1.2_V4C_ALP18/DCM1.2_V50_ALP18/DCM1.2_V54_ALP18/DCM1.2_V58_ALP18/DCM1.2_V5C_ALP18