2011 RENAULT SCENIC fuel pump

13B-313
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 6 Major leak in injectors/injectors open
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Te s t 3 High pressure fuel pressure solenoid valve check is OK.
Test 4 High pressure pump (HPP) and fuel flow solenoid valve check is OK.
Te s t 5 Rail high pressure regulation circuit check is OK.
Causes:
Not enough or no rail pressure during starting.
The engine does not start.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Measure the resistance at the injectors.
Resistance between 150 and 250 kΩ.
Measure at ambient temperature (approx. 20°C),
allow the engine to cool down for at least
30 minutes.
Is the resistance correct?
YES
NOReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST6 / SID304_V45_TEST6 / SID301_V48_TEST6 / SID304_V49_TEST6 / SID304_V4D_TEST6 / SID301_V4C_TEST6
A

13B-315
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 6
CONTINUED 2
– Refit the return pipes.
– Refer to parameters PR008 Rail pressure
setpoint and PR038 Rail pressure.
–Does PR038 Rail pressure follow PR008 Rail
pressure setpoint during the 3second
starting action phase?
NO
Remove the heater plugs and check for
moisture.
If the heater plugs are wet with fuel, it is possible
that the injector is leaking.
Are the heater plugs wet with fuel?
NO
Replace the pump (see replacement of
components).
YES Injection system correct.
YESReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
B

13B-316
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 7 Incorrect injection quantity
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Te s t 3 High pressure fuel pressure solenoid valve check is OK.
Test 4 High pressure pump (HPP) and fuel flow solenoid valve check is OK.
Te s t 5 Rail high pressure regulation circuit check is OK.
All the electrical consumers are switched off.
Air conditioning is switched off.
Cause:
The engine runs poorly at idle speed, possibly emits white smoke.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Ignition off.
Measure the resistance at the injectors.
The reference resistance is between 150 and
250 kΩ.
Measure at ambient temperature (approx. 20°C),
allow the engine to cool down for at least
30 minutes.
Are the resistances correct?
YES
NOReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST7 / SID304_V45_TEST7 / SID301_V48_TEST7 / SID304_V49_TEST7 / SID304_V4D_TEST7 / SID301_V4C_TEST7
A

13B-318
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 8 Particle filter injector supply circuit check
NOTESDeal first with faults DF991 Particle filter injector control circuit and DF1004
Electric fuel pump relay control circuit.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Vdiag 45, 49 and 4D only.
Check the condition of the fuel supply pipes
between the particle filter injector and the electric
fuel pump.
Check that the pipes are not trapped, blocked or
pierced and there that are no leaks.
Are the components in good condition?
YES
Check the particle filter injector, component
code 1750.
Check the condition, power feed and
connections of the particle filter injector.
(Consult the interpretation of fault DF991
Particle filter injector control circuit). Check it
works by running command AC238 Particle
filter injector.
Does the particle filter injector operate
correctly?
YES
NOReplace any faulty components.
NOReplace the particle filter injector if
necessary.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID304_V45_TEST8 / SID304_V49_TEST8 / SID304_V4D_TEST8 / SID301_V4C_TEST8
A

13B-319
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
TEST 8
CONTINUED 1
Particle filter injector fuel system pressurisation check (pressure test):
To check the pressure in the particle filter injector fuel system:
●Connect the T-union Mot 1311-08 to the particle filter injector fuel filter outlet (adapter visible without
dismantling).
●Connect the pressure gauge Mot 1311-01 to the T-union.
Pressurise the fuel system using the diagnostic tool, and run command AC237 Fuel pump relay.
If the pressure in the system is about 1 bar, perform the command a second time.
The pressure must be at least 3 bar.
If the fuel pressure is less than 3 bar, proceed as follows:
●Carry out a visual inspection of the flexible supply hose to the particle filter injector, before and after the
T-union (leaks, pinching, fuel filter condition, etc.).
Pressurise the fuel system again with the diagnostic tool, and run command AC237 Fuel pump relay.
If the pressure is not equal to or above 3 bar, replace the pump/sender unit (see Technical Note 5117A, Special
features of vehicles fitted with the K9K 772 engine).
Checking the pressure regulator:
●Run command AC237 Fuel pump relay, until the fuel pressure reaches 5 bar.
●Reactivate command AC237 Fuel pump relay again to check that the pressure is controlled between 5.5 bar
and 5 bar.
If the regulator is not working, replace the pump/sender unit (see Technical Note 5117A, Special features of
vehicles fitted with the K9K 772 engine).
Note:
To reduce the pressure in the system, run command AC238 Particle filter injector, until it drops to 3 bar, then
carefully disconnect the union.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
A

13B-320
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
TEST 8
CONTINUED 2
With + after ignition feed on, check for + 12 V feed between connection codes 3AHB and M at the electric pump
connector of the particle filter injector, component code 1767.
If there is no + 12 V feed to the sensor, check the continuity, insulation and absence of interference
resistance on the following connections:
●connection code 3AHB between components 1767 and 1768,
●Connection code M between component 1767 and the vehicle earth.
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.
(Refer to the interpretation of faults DF1004 Electric fuel pump relay control and DF1001 Particle filter
upstream temperature regulation).
●Reconnect or replace the pipe.
Repeat the pressure test.
●Replace the fuel filter (see MR 392, 385, 364, 370 and 417 Mechanics, 13A, Fuel supply, Fuel filter:
Removal - Refitting).
Repeat the pressure test.
●Replace the particle filter injector electric pump.
Repeat the pressure test.
●Check that the particle filter injector is fitted correctly.
Check that the particle filter injector is correctly held in place. Repair or replace the particle filter injector mounting.
●"Only on Kangoo 2:
Check the integrity and correct fitting of the evaporator plate located under the particle filter injector, at the level of
the bracket.
If the blade of the evaporator plate has become detached, it may be located downstream from the line between its
original position and the oxidation catalytic converter inlet.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.

13B-327
MR-372-J84-13B050$975.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
TEST 13 Diesel fuel conformity check
WARNING
During this operation, it is essential to:
– refrain from smoking or bringing incandescent objects close to the work area,
– protect yourself against fuel splashes due to residual pressure in the pipes,
– wear safety goggles with side guards,
– wear leaktight gloves (Nitrile type).
IMPORTANT
– To avoid any corrosion or damage, protect the areas on which fuel is likely to run.
– To prevent impurities from entering the circuit, place protective plugs on all fuel circuit components
exposed to the open air.
Preparations:
Weigh an empty 1300 ml plastic cup (part no. 77 11 171 413) with its cover (part no. 77 11 171 416) using
electronic scales such as those used in body paint workshops (example: PANDA part no. 77 11 224 995). Record
the weight of the empty plastic cup.
This type of plastic cup is used to prepare paint.
Take a 1 l fuel sample from the diesel fuel filter outlet (see MR 392 (Clio III), 364 (Mégane II ph2), and 417
(Kangoo II), Mechanical, 19C, Tank, Fuel tank: Draining, or MR 385 (Modus) and 370 (Scénic II ph2)
Mechanical, 19C, Tank, Draining the fuel tank), using a pneumatic transfer pump (part no. 634-200) and place
it in the 1300 ml plastic cup.
Cover the plastic cup with its cover and let the fuel settle for approximately 2 minutes.
Is the fuel cloudy or does it separate
into two parts?Presence of water in diesel fuel, the fuel is not compliant.
Drain the fuel circuit, including the tank (see MR 392 (Clio III),
364 (Mégane II ph2), and 417 (Kangoo II), Mechanical, 19C,
Tank, Fuel tank: Draining or MR 385 (Modus) and 370
(Scénic II ph2), Mechanical, 19C, Tank, Draining the fuel
tank).
YES
NO
A
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST13 / SID304_V45_TEST13 / SID301_V48_TEST13 / SID304_V49_TEST13 / SID304_V4D_TEST13 / SID301_V4C_TEST13
DIESEL INJECTION
Fault finding – Tests
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4CProgram No.: B1 and B2
MR-372-J84-13B050$975.mif