Status RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16 Manual PDF
Page 327 of 365
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V13
DIESEL INJECTION
Fault finding – Fault Finding Chart
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
ALP 7 Rough idle
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 sealing and condition of the inlet circuit by running Test 4 Turbocharged air inlet circuit check
Check the low pressure circuit
check the engine parameters:
– Check the update of the engine management computer calibration (last calibration).
– Check the conformity of the IMA codes (using the Identification screen on the Clip diagnostic tool).
– Check the charging circuit (see Technical Note 6014A Checking the charging circuit)
– To ensure the conformity of the engine speed signal, check:
* the wiring,
* the position of the flywheel and the condition of the flywheel teeth.
* the position and tightness of the engine speed sensor.
– Check the fuel flow correction from station to station, run Test 9 Poor injector operation.
Check the connections and wiring of the injectors.
Check the connections and wiring of the engine management computer to the injectors.
Repair if necessary.
Check the high pressure circuit (external leaks) (see the end of ALP6 Fuel circuit external leaks)
Check the timing setting (and the position of the high pressure pump pinion)
Check the lower engine:
– Check the compressions using the CLIP Technic diagnostic tool, Compression test or the special tool.
– Only check the engine stand if there is noise or excessive vibration when idling.
If the checks are correct, contact the Techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V50_ALP7/EDC16_V58_ALP7/EDC16_V5C_ALP7/EDC16_V18_ALP7/EDC16_V1C_ALP7/EDC16_V20_ALP7
Page 328 of 365
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V13
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP 8 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.
According to the vehicle type, maximum visual access will either be 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 for 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?
YES NO
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 traces of oil inside the pipes at the
turbocharger inlet or outlet as the air passing into the
compressor is laden with oil from the engine rebreathing circuit.
Is the suspected interface properly tightened?
YES
Replace the pipe concerned (see MR 364 (Mégane II), 370 (Scénic II) or 395 (Laguna II), Mechanical, 12B,
Turbocharging).
NOTighten the interface or the
concerned pipe.
End of procedure.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V50_ALP8/EDC16_V58_ALP8/EDC16_V5C_ALP8/EDC16_V18_ALP8/EDC16_V1C_ALP8/EDC16_V20_ALP8
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V13
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP 9 Particle filter warning light comes on too often
NOTESBefore dealing with this customer complaint, check that there are no faults
except DF312 Speed request and the conformity (or otherwise) of the
"parameters" and "status" using the diagnostic tool. Deal with the other faults
first.
If the customer complaint is not eliminated, perform the following checks.
Have the last 10 regeneration attempts failed?
Is the distance of PR412 Distance of last
successful regeneration less than all the
parameters of group 2? (PR794 to PR803
Regeneration failure record no. 1 to no. 10).
NO
Is at least one status for group 1 = STATUS4?
YES
YESAre all the regeneration
failures linked to engine cut-
off?
See parameter for the group
(ET706 Engine status record
no. 1 to ET715 Engine status
record no. 10)
(E.g.: ET706 STOPPED)
NO
Symptom
not
confirmed
YESOutput 1
NO
Check that there are
no leaks or
blockages in the
exhaust pipe,
Repair if necessary.
Carry out an After-
Sales regeneration if
not already
performed. To do
this, see SC017
Particle filter
regeneration in
Interpretation of
commands.
Output 2
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V50_ALP9/EDC16_V58_ALP9/EDC16_V5C_ALP9/EDC16_V18_ALP9/EDC16_V1C_ALP9/EDC16_V20_ALP9
A
B
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V13
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP 9
CONTINUED 2
vdiag 5c and 20 vdiag 50, 58, 18 and 1C
Has a parameter from group 1 reached
19.661 miles (32.768 km)?YES
NO
For each successful regeneration (R), look in group 1 for the next parameter in order of
distance whose status is STATUS4. is there at least one status?
YES
note down the 2 identified parameters and calculate
the interval between the 2 using the formula in the
table.
Is the calculated interval less than 198 miles
(330 km)?
YES
CD
E
E
NOOutput 3
NOOutput 4
(To be calculated for each successful regeneration)
Parameter PR412 = _________
Next parameter at STATUS 4 = __________
Interval = Next parameter at STATUS 4 – PR412
= ________ - _________
= _________
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.