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

13B-501V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
OCR*: Opening Cyclic Ratio
TEST5 Air flowmeter
Damage to electrical components
Visual inspection: remove the flow sensor - the components should not be broken.
Replace the air flowmeter if necessary.
Oxidation of the electrical components
Visual inspection: remove the air flowmeter, there should not be any greenish deposits on the electrical
components.
Replace the air flowmeter if necessary.
Clogging of the air flowmeter
Test:
– Check the values for conformity:
– During the first 5 seconds after starting,
–PR064 Coolant temperature: 80°C.
–PR055: Engine speed: idling.
–PR059: Air temperature between 30 and 70°C.
–PR146 Inlet air flow: between 20 and 28 kg/h.
–PR220 EGR valve OCR*: between 22 and 30%.
–PR132 Air flow: between 20 and 28 kg/h.
–PR051 EGR valve position feedback: between 22 and 30%.
–PR023 Air flow difference between - 50 and + 50 mg/stroke.
– Apply the procedure for DF056 Air flow sensor circuit for the checks on the air flowmeter.
Replace the air flowmeter if necessary.
END OF TEST.
EDC16CP33_V18_TEST5 / EDC16CP33_V1C_TEST5 / EDC16CP33_V54_TEST5 / EDC16CP33_V20_TEST5 / EDC16CP33_V58_TEST5 /
EDC16CP33_V5C_TEST5 / EDC16CP33_V24_TEST5 / EDC16CP33_V04_TEST5 / EDC16CP33_V08_TEST5 / EDC16CP33_V44_TEST5 /
EDC16CP33_V4C_TEST5 / EDC16CP33_V34_TEST5 / EDC16CP33_V38_TEST5 / EDC16CP33_V74_TEST5 / EDC16CP33_V28_TEST5 /
EDC16CP33_V62_TEST5 / EDC16CP33_V26_TEST5 / EDC16CP33_V60_TEST5
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-503V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
IMA*: Individual injector correction
TEST10 Incorrect injector operation
Part A (for VDiag 18, 04 and 44):
Fuel regulation balance check for each injector (individual correction):
– In the CLIP diagnostic tool, choose the Fuel circuit subfunction.
– With the engine idling and the fuel temperature > 50°C, view the flow correction values of each injector (individual
correction), i.e.:
– PR364 Cylinder no. 1 fuel flow correction;
– PR405 Cylinder no. 2 fuel flow correction;
– PR406 Cylinder no. 3 fuel flow correction;
– PR365 Cylinder no. 4 fuel flow correction.
The normal value for flow correction for an injector is approximately X = ±1.5 mg/stroke. This tolerance value may
increase with time, but indicates an injector / cylinder fault if it exceeds X = ±5 mg/stroke.
Check the IMA* injector codes, by comparing the IMA codes engraved on the injectors (the IMA codes are read
from left to right) and the IMA codes read with the diagnostic tool. If the IMA codes are correct, continue the fault
finding procedure, if not, enter the incorrect IMA codes using command SC002 Enter injector codes (see
Interpretation of commands).
1- If at least one of these values is X > + 5 mg/stroke
– Check the valve clearance.
– Check the condition of the engine and test the compressions. Use a compression gauge, the M9R hose end
piece, part number Mot.1772 and apply command VP036 Fuel supply inhibition (see Interpretation of
commands).
– If the compression test reveals a cylinder fault, carry out the necessary repairs.
– If the compression is correct, check the injector fitting conforms according to the procedure (see MR 402 (Vel
Satis ph2), MR 395 (Laguna II ph2), MR 364 (Mégane II ph2), MR 370 (Scénic II ph2) or MR 405 (Espace IV
ph2) Mechanical, 13B, Diesel injection, Diesel injectors: Removal - Refitting).
– Check the fuel regulation again for each injector (individual correction).
– If the customer complaint is still present, replace the injector* concerned.
– See paragraph Part C: Confirmation of flow correction fault finding for each injector, for confirmation of the
fault finding.
EDC16CP33_V18_TEST10 / EDC16CP33_V1C_TEST10 / EDC16CP33_V54_TEST10 / EDC16CP33_V20_TEST10 /
EDC16CP33_V58_TEST10 / EDC16CP33_V5C_TEST10 / EDC16CP33_V24_TEST10 / EDC16CP33_V04_TEST10 /
EDC16CP33_V08_TEST10 / EDC16CP33_V44_TEST10 / EDC16CP33_V4C_TEST10 / EDC16CP33_V34_TEST10 /
EDC16CP33_V38_TEST10 / EDC16CP33_V74_TEST10 / EDC16CP33_V28_TEST10 / EDC16CP33_V62_TEST10 /
EDC16CP33_V26_TEST10 / EDC16CP33_V60_TEST10
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-504V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST10
CONTINUED 1
2. If at least one of these values is X < - 5 mg/stroke
– Check the valve clearance.
– Check the level and condition of the engine oil.
– Remove the injector with the largest adjustment.
– If there is contamination via the diesel, check the condition of the cylinder concerned (cylinder, piston, valves).
– Replace the injector* concerned.
– See paragraph Part C, for confirmation of the fault finding.
3. If at least one of these values does not stabilise (20 seconds after starting):
– Check the low pressure circuit using Test 3 Low pressure circuit test.
– Check the fuel is correct by carrying out Test 12 Diesel fuel conformity check.
See paragraph Part C of Test 10, for confirmation of the fault finding.
After replacing an injector, follow the injector code programming procedure (see Replacement of components),
run SC036 Reinitialise programming and select the number of the injector replaced.
IMPORTANT:
When removing / refitting injectors, follow the cleanliness and safety instructions (see MR 395 (Laguna II ph2),
402 (Vel Satis), 405 (Espace IV Ph2), 364 (Megane II ph2), 370 (Scenic II ph2) Mechanical, 13B, Diesel
injection, Diesel injectors: Removal - Refitting).
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-505V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
Part B (except VDiag 18, 04 and 44):
TEST10
CONTINUED 2
Run SC031 Cylinder operational fault
finding.
Is SC031 correct?
The injectors are operating correctly.Check the engine compressions: use a compression
gauge, M9R hose end piece, part no. Mot. 1772 and apply
command VP036 Fuel supply inhibition (see
Interpretation of commands).
Run compressions on all cylinders.
Are the compressions correct?
Check the cylinder block.Check the fitting of the injector concerned and repair if
necessary.
Otherwise change the injector concerned.
After replacing the injector, follow the injector code
programming procedure (see Replacement of
components), run SC036 Reinitialise programming, and
select the number of the injector replaced.
Repeat Part B of Test 10 to confirm the repairs.
IMPORTANT:
When removing / refitting injectors, follow the cleanliness and safety instructions (see MR 395 (Laguna II ph2),
402 (Vel Satis), 405 (Espace IV Ph2), 364 (Megane II ph2), 370 (Scenic II ph2) Mechanical, 13B, Diesel
injection, Diesel injectors: Removal - Refitting).NO
YES
YESNO
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-506V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST10
CONTINUED 3
Part C:
Confirmation of flow correction fault finding for each injector (individual correction):
Clear the faults and run a test with the engine at idle speed and the fuel temperature > 50°C, check that no faults
appear on the diagnostic tool and that the correction values do not reach X = ± 5 mg/stroke to confirm the repair.
– If one or more cylinders have flow correction values for an injector which exceed X = ± 5 mg/stroke, follow the
fault finding procedure described in Part A: Fuel regulation balance check for each injector (individual) of
Test 10.
– Otherwise, follow the fault finding procedure described in Part D of Test 10.
Part D:
Injector nozzle sealing check:
Check the level and condition of the engine oil:
– If there is contamination from the diesel fuel, the leaking injector nozzle will be "greasy".
– Disconnect the preheating relay.
– Ensure that this is not caused by rising engine oil by checking the engine compression values.
– Check the condition of the heater plug: this must not be wet. If it is, change the defective injector.
– If the engine compression values are correct: locate the faulty injector by looking at the condition of the cylinders
and the pistons through the heater plug wells (greasy cylinder, overheating, signs of damage, etc.).
– If the cylinder - piston examination is not conclusive, remove the injectors and change the one with the greasy
nozzle.
– If the fault finding checks do not enable the engine to be repaired, contact the Techline.
After replacing the injector, follow the injector code programming procedure (see Replacement of components),
run SC036 Reinitialise programming, and select the number of the injector replaced.
Note:
Before replacing an injector, check for the sealing washer and its conformity (see Fault finding chart ALP4 Poor
performance).
IMPORTANT:
When removing / refitting injectors, follow the cleanliness and safety instructions (see MR 395 (Laguna II ph2),
402 (Vel Satis), 405 (Espace IV Ph2), 364 (Megane II ph2), 370 (Scenic II ph2) Mechanical, 13B, Diesel
injection, Diesel injectors: Removal - Refitting).
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-507V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST11 Temperature upstream of turbine too low
Perform a complete fault finding of the
injection computer using the diagnostic tool.
Are there any present or stored faults?Apply the procedure for dealing with the
associated faults.
Run Test 1 Exhaust system check
Is the exhaust pipe correct?
Repair then carry out another particle filter
regeneration.
Run command SC017 "Particle filter
regeneration" (see Interpretation of
commands).
If the second regeneration is successful, it is
essential to change the engine oil and replace
the oil filter.
If the second regeneration fails, contact the
Techline. Apply Test 4 Turbocharged air inlet circuit
check.
Is the inlet circuit in order?
Run Test 4 Air flowmeter
Is the air flow sensor correct?
Run Test 10 Poor injector operation
Are the injectors correct?
Contact the Techline.
YES
NO
NO
NONO
NO
NO
YES
YES
YES
YES
EDC16CP33_V18_TEST11 / EDC16CP33_V1C_TEST11 / EDC16CP33_V54_TEST11 / EDC16CP33_V20_TEST11 /
EDC16CP33_V58_TEST11 / EDC16CP33_V5C_TEST11 / EDC16CP33_V24_TEST11 / EDC16CP33_V28_TEST11 /
EDC16CP33_V62_TEST11 / EDC16CP33_V26_TEST11 / EDC16CP33_V60_TEST11
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62