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

13B-491
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
Analysis of output for ALP9.
ALP9
CONTINUED 4
ALP
output no.Output conditions for
ALP9Cause - type of drivingRegeneration
frequencyWhat to tell the
customer?
Output 1The last 10 regeneration
attempts have failed due to
the engine cutting out.Regeneration failures
caused by engine cut-off.No regeneration
frequency analysis.Explain to the customer
the need to wait until the
end of regeneration
(warning light goes out)
before switching off the
engine.
Output 2The last 10 regeneration
attempts have failed but
not because of the engine
cutting out.Unsuitable driving
conditions.No regeneration
frequency analysis.Explain again to the
customer the driving
criteria for when the
warning light comes on.
Output 3After successful
regenerations stored in the
memory, the warning light
did not come on. No
interval can be calculated.Since the last successful
stored regenerations, the
driving conditions have not
allowed the warning light to
come on.Should be normal Vehicle correct
Output 4The interval between a
successful regeneration
and the particle filter
warning light coming on is
correct (above the lowest
possible values). The
system does not have any
irregular components.Unfavourable driving
(urban zone, underspeed,
etc.)Normal Vehicle correct
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-492V12 MR-372-J84-13B300$180.mif
13B
*Technical Note 3419: Fault finding on the turbocharger for petrol and diesel engines. EXHAUST SYSTEM CHECK TEST1
RESOLVING MISFIRESTEST2
LOW PRESSURE CIRCUIT CHECK TEST3
TURBOCHARGED AIR INLET CIRCUIT CHECK TEST4
AIR FLOW SENSORTEST5
FUEL RETURN RAIL VALVE CHECK TEST6
VARIABLE GEOMETRY TURBOCHARGER CONTROLTEST 7: Apply
TEST 4 of
Technical Note
3419*
ROTATING PART OF TURBOCHARGERTEST 8: Apply
TEST 7 of
Technical Note
3419*
POOR INJECTOR OPERATION TEST10
TEMPERATURE UPSTREAM OF TURBINE TOO LOW TEST11
DIESEL FUEL CONFORMITY CHECK TEST12
DIESEL INJECTION
Fault finding – Test
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-493V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST1 Exhaust system check
Engine stopped: Check that the silencer outlet is
not blocked. Repair or replace the silencer, if
necessary.
Check the seal of the exhaust manifold on the
contact surface between the turbocharger and the
exhaust manifold.
Is the seal in order?Repair or replace the faulty part.
Loosen the catalytic converter on the turbocharger
side.
Place a wooden block between the two parts.
Start the vehicle and check if the engine runs
better.
Is the engine running normally?The exhaust system is not the cause of the fault;
repeat the engine fault finding (see Customer
complaints - Fault finding chart).
Retighten the catalytic converter.
Loosen or separate the particle filter on the
catalytic converter side. Place a wooden block
between the two parts if necessary.
Start the vehicle and check if the engine runs
better.
Is the engine running normally?Replace the catalytic converter.
NO
YES
NO
YES
NO
YES
A
EDC16CP33_V18_TEST1 / EDC16CP33_V1C_TEST1 / EDC16CP33_V54_TEST1 / EDC16CP33_V20_TEST1 / EDC16CP33_V58_TEST1 /
EDC16CP33_V5C_TEST1 / EDC16CP33_V24_TEST1 / EDC16CP33_V04_TEST1 / EDC16CP33_V08_TEST1 / EDC16CP33_V44_TEST1 /
EDC16CP33_V4C_TEST1 / EDC16CP33_V34_TEST1 / EDC16CP33_V38_TEST1 / EDC16CP33_V74_TEST1 / EDC16CP33_V28_TEST1 /
EDC16CP33_V62_TEST1 / EDC16CP33_V26_TEST1 / EDC16CP33_V60_TEST1
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-494V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST1
CONTINUED
Retighten the particle filter.
Loosen or uncouple the silencer on the side of the
particle filter (see MR 395, 402, 405, 364, 370,
Mechanical, 19B Exhaust, Parts and
consumables for repair).
Start the vehicle and check if the engine runs
better.
Is the engine running normally?Replace the particle filter (see MR 395, 402, 405,
364, 370, Mechanical, 19B, Exhaust, Particle
filter, Removal - Refitting).
Reinitialise the parameters after the particle filter
is replaced.
Run command SC036 Reinitialise
programming and select After particle filter
replacement.
Replace the silencer.
A
YES
NO
YES
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-495V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST2 Resolving misfires
Check for faults DF059 Misfire on cylinder 1, DF060
Misfire on cylinder 2, DF061 Misfire on cylinder 3,
DF062 Misfire on cylinder 4, DF065 Misfire using the
diagnostic tool.
Run a compression test using the M9R flexible end piece,
part number Mot. 1772 and apply command VP036 Fuel
supply inhibition (see Interpretation of commands).
Are the values obtained correct?Check the mechanical conformity of the
valves, heater plugs and segments.
Clear the faults, start the engine and leave the engine
running at idle speed for 1 minute.
Check for faults DF059, DF060, DF061, DF062, DF065
using the diagnostic tool.
Are there any faults remaining?End of test.
Change the faulty injector to another position.
Did the fault follow the injector to its new location?Put the injectors back in their initial
positions.
NO
YES
NO
YES
NO
YES
A
EDC16CP33_V18_TEST2 / EDC16CP33_V1C_TEST2 / EDC16CP33_V54_TEST2 / EDC16CP33_V20_TEST2 / EDC16CP33_V58_TEST2 /
EDC16CP33_V5C_TEST2 / EDC16CP33_V24_TEST2 / EDC16CP33_V04_TEST2 / EDC16CP33_V08_TEST2 / EDC16CP33_V44_TEST2 /
EDC16CP33_V4C_TEST2 / EDC16CP33_V34_TEST2 / EDC16CP33_V38_TEST2 / EDC16CP33_V74_TEST2 / EDC16CP33_V28_TEST2 /
EDC16CP33_V62_TEST2 / EDC16CP33_V26_TEST2 / EDC16CP33_V60_TEST2
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-496V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST2
CONTINUED
Replace the faulty injector by observing the
procedure described in the section
Replacement of components.Clear the faults, start the engine and leave the engine
running at idle speed for 1 minute.
Check for faults DF059, DF060, DF061, DF062, DF065
using the diagnostic tool.
Are there any faults remaining?
End of test.Check the mechanical conformity
of the valves, heater plugs and
segments.
A
YES
NO
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-497V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST3 Low pressure circuit check
Check the fuel filter:
– Conformity of the fuel filter (correct part number and RENAULT filter).
– Positioning and degree of clogging of the filter cartridge.
– Positioning and condition of the seals.
– If there is metal swarf in the filter:
Replace the fuel filter, bleed the circuit and continue the fault finding procedure.
Supplying the injection system with fuel from an additional tank.
This operation aims to detect possible faults in the low pressure supply system of a vehicle by replacing it entirely
with an additional tank.
Mode:
– Disconnect the diesel fuel supply pipe at the fuel filter inlet and block it with a plug.
– Connect a pipe to the fuel filter inlet and insert the other end in a clean container with a capacity of approximately
5 litres.
– Disconnect the diesel fuel return pipe at the diesel temperature sensor (pump return and injector return join), and
block it using a plug.
– Connect a transparent pipe to the union of the diesel fuel temperature sensor, and insert the other end in the
container.
– Fill the container with clean diesel fuel.
– Start the engine and let the system drain itself of its air (there must not be any air bubbles in the return pipe).
Is the customer complaint still present?If the low pressure circuit is in order, reconnect the
various low pressure circuit pipes, and repeat the
fault finding chart procedure or the procedure for
the fault that referred you to this test.
Are the low pressure circuit connections in order
and in good condition?Carry out the necessary repairs.
YES
NO
NO
A
YES
EDC16CP33_V18_TEST3 / EDC16CP33_V1C_TEST3 / EDC16CP33_V54_TEST3 / EDC16CP33_V20_TEST3 / EDC16CP33_V58_TEST3 /
EDC16CP33_V5C_TEST3 / EDC16CP33_V24_TEST3 / EDC16CP33_V04_TEST3 / EDC16CP33_V08_TEST3 / EDC16CP33_V44_TEST3 /
EDC16CP33_V4C_TEST3 / EDC16CP33_V34_TEST3 / EDC16CP33_V38_TEST3 / EDC16CP33_V74_TEST3 / EDC16CP33_V28_TEST3 /
EDC16CP33_V62_TEST3 / EDC16CP33_V26_TEST3 / EDC16CP33_V60_TEST3
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-498V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST3
CONTINUED
Check the condition and operation of the priming bulb. Perform repairs if necessary and continue the test.
Check the condition of all the low pressure diesel pipes from the tank to the injection pump (in particular no pinching
of pipes).
If the fault is still present with a low fuel level, check the consistency of the actual fuel level and that indicated on
the instrument panel.
The transfer pump is supplied via a Venturi pipe located underneath it.
Check that the opening of the venturi (6 mm to 8 mm in diameter) is not blocked by dirt contained in the fuel tank.
Check the priming of the low pressure diesel circuit.
Check that the fuel tank is correctly filled and that the fuel is correct (see Test 12 Diesel fuel conformity check).
If the diesel fuel is not correct:
– Replace the fuel (diesel fuel).
– Replace the fuel filter (diesel fuel).
– Bleed the low and high pressure fuel circuit (diesel fuel).
Low pressure circuit correct.
A
YES
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-499V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST4 Turbocharged air inlet circuit check
Engine stopped: Check the sealing (leak or air intake) of the low and high pressure air circuit (before/after
turbocharger).
Check the parts that are abnormally greasy of the circuit and reveal a lack of tightness.
Check:
– the condition and fitting of the ducts (foreign, clogged, not joined, kinked, broken, pierced, cut bodies, tightness
of the mounting bolts, etc.).
– the presence, condition and fitting of the seals.
– the present and tightening of the clamps.
– The fitting of the turbocharging pressure sensor.
– The pipes and the take-off point between the air duct and the turbocharging sensor.
Carry out the necessary repairs.
Check the air filter.
Check:
– That the inlet and outlet of the air filter unit is not blocked.
– the condition and the assembly of the air filter unit (disconnected, broken, pierced …).
– The cleanliness, the conformity and the non-distortion of the filter element.
– The air flowmeter: run Test 5 Air flowmeter.
Carry out the necessary repairs
Check:
– the condition of the damper valve,
– the tightening of the mounting bolts,
– cracks in the damper valve.
Carry out the necessary repairs.
A
EDC16CP33_V18_TEST4 / EDC16CP33_V1C_TEST4 / EDC16CP33_V54_TEST4 / EDC16CP33_V20_TEST4 / EDC16CP33_V58_TEST4 /
EDC16CP33_V5C_TEST4 / EDC16CP33_V24_TEST4 / EDC16CP33_V04_TEST4 / EDC16CP33_V08_TEST4 / EDC16CP33_V44_TEST4 /
EDC16CP33_V4C_TEST4 / EDC16CP33_V34_TEST4 / EDC16CP33_V38_TEST4 / EDC16CP33_V74_TEST4 / EDC16CP33_V28_TEST4 /
EDC16CP33_V62_TEST4 / EDC16CP33_V26_TEST4 / EDC16CP33_V60_TEST4
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-500V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST4
CONTINUEDTurbocharged air inlet circuit check
Check that there is no leak at the exhaust manifold, in particular at the exhaust manifold/turbocharger connection.
Check the exhaust, run Test 1 Exhaust pipe check.
Carry out the necessary repairs.
Visually check the EGR circuit sealing.
Note:
The operational clearance of the EGR exchanger flap shaft leaves slight traces of a black substance due to
inconsequential leakage. Do not replace this part.
– Check the condition of the intercooler:
– clogging,
– leaks (vehicle stationary, stabilise the engine speed between 3500 rpm and 4000 rpm and check that there are
no leaks).
Replace if necessary.
Check that the turbocharging pressure sensor take-off point is not blocked.
Carry out the necessary repairs
END OF TEST.
A
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74