2010 RENAULT SCENIC fuel pump

13B-88
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$110.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF057
PRESENT
OR
STOREDWATER IN DIESEL FUEL DETECTOR CIRCUIT
CO.1: Open circuit or short circuit to + 12 V
CC.0: Short circuit to earth
1.DEF: above maximum threshold
NOTESSpecial notes:
–If water is detected downstream of the diesel filter, the high pressure pump
and the injectors may be damaged.
Use bornier Elé. 1681 for all operations on the connector of the engine management
computer.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connections of the water in diesel fuel sensor, component code 414.
Check the connections of the engine management computer, component code 120.
If the connector(s) are faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s), otherwise replace the wiring.
With the ignition on, check for +12 V on connections 3FB1 and 3FB2 (for New Twingo) or AP15 (for Kangoo 2)
of component 414.
Check for earth on the following connections:
–M or 3WU (for New Twingo) of component 120.
–MH and MW (for Kangoo 2) of component 414.
Check the continuity of the following connections:
–3WT between components 414 and 120,
–M between components 414 and 120,
–3FB1 between components 414 and 1337.
(only for New Twingo):
–3WT between components 414 and 120,
–3WU between components 414 and 120,
–3FB2 between components 414 and 238.
(only for Kangoo 2):
–AP15 between components 414 and 1337,
–3WT between components 414 and 1337,
–MH and MW between earth and component 414.
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 the wiring.
DCM1.2_V48_DF057/DCM1.2_V4C_DF057/DCM1.2_V50_DF057/DCM1.2_V54_DF057/DCM1.2_V58_DF057/DCM1.2_V5C_DF057

13B-122
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$120.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF886
PRESENT OR
STOREDPRESENCE OF WATER IN THE DIESEL FUEL
NOTESPriorities when dealing with a number of faults:
–DF057 Water in diesel fuel detector circuit,
Special notes:
If water is detected downstream of the diesel filter, the high pressure pump and
the injectors may be damaged.
The level 1 warning light is illuminated.
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
See the Technical Note Wiring Diagrams for the vehicle.
If there is water present, bleed the diesel filter.
If there is a great amount of water, run the first part of Test 13: Diesel fuel conformity check (Is the fuel cloudy
or does it separate into 2 parts?)
Check the connections of the water in diesel fuel sensor, component code 414.
Check the connections of the engine management computer grey connector, component code 120.
If the connector(s) are faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
With the ignition on, check for +12 V on connections 3FB1 or 3FB2 (for New Twingo) or AP15 (for Kangoo 2) of
component 414.
Check for earth on connections M or 3WU (only for New Twingo) of component 120.
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 the wiring.
DCM1.2_V48_DF886/DCM1.2_V4C_DF886/DCM1.2_V50_DF886/DCM1.2_V54_DF886/DCM1.2_V58_DF886/DCM1.2_V5C_DF886

13B-208V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 1 Low pressure circuit check
Check the conformity of the low pressure circuit
connections.
Are the low pressure circuit connections correct? Carry out the necessary repairs.
Check the condition of the priming bulb, and that it is
working properly.
Look for leaks at the unions.
Are there leaks from the hoses and unions? Carry out the necessary repairs.
Check that there are no air bubbles in the diesel fuel.–Bleed the low-pressure circuit.
–Place a container under the filter.
–Disconnect the return hose from the filter
and plug the filter.
–Pump using the priming bulb until there is no
air left.
–Reconnect the return hose immediately. Are air bubbles present in the low pressure circuit?
Low pressure circuit correct.
NO
YES
YES
NO
YES
NO
DCM1.2_V48_TEST1/DCM1.2_V4C_TEST1/DCM1.2_V50_TEST1/DCM1.2_V54_TEST1/DCM1.2_V58_TEST1/DCM1.2_V5C_TEST1

13B-212V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 6 High pressure system check
NOTESSpecial note:
Certain faults make it impossible to carry out this test - deal with these first.
WARNING
Running the starter motor for more than 5 seconds is dangerous and serves no
useful purpose.
Preliminary checks:
–Check for the presence of fuel
–Check that there is no air in the low pressure circuit. Run TEST 1 Low pressure circuit check.
–Ensure that the correct fuel is being used. Run test 13 Diesel fuel conformity check.
The pump's capacity to produce high pressure can be checked by the following procedure:
–With the ignition off, disconnect the low pressure actuator from the pump (IMV brown connector)
and connect a test IMV or the adapter of MOT. 1711.
–Electrically disconnect the four injectors.
–Switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system.
–Go to the Main computer statuses and parameters screen.
–Run the test cold, PR064 "Coolant temperature" < 30
°C or equal to ambient temperature.
–Engage the starter for 5 seconds.
–Read the maximum rail pressure value PR038 Rail pressure during the test on the diagnostic tool.
A
DCM1.2_V48_TEST6/DCM1.2_V4C_TEST6/DCM1.2_V50_TEST6/DCM1.2_V54_TEST6/DCM1.2_V58_TEST6/DCM1.2_V5C_TEST6

13B-213V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
IMV = fuel flow actuator
TEST 6
CONTINUED
PR038 > 1050 bar?
–Switch off the ignition, reconnect the electrical
connections to the four injectors and the low-
pressure actuator.
–Switch on the ignition again, and clear the injection
faults using the diagnostic tool.
–Check if there is no fuel leak in the high pressure
circuit. Run TEST 7 High pressure circuit sealing
check.
–Check the conformity of the diesel filter. Run
TEST 9 Diesel filter check.
–Carry out fault finding on the injectors by checking
the return flow volume of the four injectors, run
TEST 8 Injector return flow.
Is TEST 8 OK?The pump can supply the operating pressure.
Switch off the ignition, reconnect the electrical
connections
to the four injectors and the low pressure
actuator. Switch on the ignition again, and clear
the injection faults using the diagnostic tool.
–Check if there is no fuel leak in the high
pressure circuit. Run TEST 7 "High pressure
circuit sealing check".
–Carry out fault finding on the injectors by
checking the return flow volume of the four
injectors, run TEST 8 Injector return flow.
If TEST 8 is correct, the high pressure fuel circuit
is correct.
Replace the faulty injector(s) (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, Diesel fuel injector:
Removal - Refitting).Replace the high pressure pump (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, High pressure pump: Removal - Refitting).
A
NOYES
NOYES

13B-216V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 8
CONTINUED 1
At the end of the idling phase and these two cycles, the return volume of each injector must be:
45 ml (maximum)for Euro 4 type engines: K9K 766 - 768 (Clio III and Modus); K9K 724 (Mégane
II and Scénic II) K9K 740 - 718 (New Twingo); K9K 800 - 802 - 812 (Kangoo 2).
35 ml maximumfor Euro 3 type engines: K9K 750 - 752 (Clio III and Modus),
If the back-leakage volume of any of the injectors is more than the values above, only replace the faulty injector
(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, Diesel fuel injector: Removal - Refitting).
Disconnect the 4 transparent pipes and reconnect the injector return circuit.
Carry out the following test to confirm the repair:
–With the ignition off, disconnect the low pressure actuator from the pump (brown IMV connector) and connect
the test adapter (test IMV, Mot. 1711),
–electrically disconnect the 4 injectors,
–switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system,
–go to the Main computer statuses and parameters screen,
–run the starter for 5 seconds,
–read the maximum rail pressure value PR038 Rail pressure during the test on the diagnostic tool.
If the rail pressure (PR038 Rail pressure) is lower than 1050 bar, run test 6: High pressure system check.
–Switch off the ignition, and reconnect the four injectors electrically,
–disconnect the test filling actuator (test IMV) and reconnect the low-pressure actuator connector (IMV) to the
pump,
–switch on the ignition again, and clear the injection faults using the diagnostic tool.
If the rail pressure (PR038) is greater than 1050 bar, the repair is correct.
End of TEST8.

13B-217V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 8
CONTINUED 2
If the engine does not start, only the static leakage can be measured, i.e. the leakage with the injector closed, not
actuated and under high pressure.
Make sure that the ignition circuit is working correctly (minimum engine speed 200 rpm).
Tooling required
–Mot. 1711 Injector flow measuring kit.
Or: Use four tubes of internal diameter 4 mm and approximately 50 cm long and a test adapter (TEST IMV).
Procedure
–Switch off the ignition,
–disconnect the return pipes from the four injectors,
–cap the pump venturi tube to prevent the low-pressure circuit from depriming,
–connect the four transparent pipes in place of the return pipes (Mot. 1711),
–disconnect the low pressure actuator from the pump (brown IMV connector) and connect a test IMV or
the Mot. 1711 adapter,
–disconnect the four injectors electrically,
–switch on the ignition and engage the starter for 5 seconds,
–measure the amount of diesel fuel in each pipe.
If the return leakage is greater than 10 cm, replace the injector(s) (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, Diesel fuel injector: Removal - Refitting).
Switch off the ignition, and reconnect the four injectors electrically.
Disconnect the test low pressure actuator and reconnect the low pressure actuator connector to the pump.
Disconnect the four transparent tubes and reconnect the injectors return circuit. Switch on the ignition again,
and clear the injection faults using the diagnostic tool.
Carry out the following test to confirm the repair:
–With the ignition off, disconnect the low pressure actuator from the pump (brown IMV connector)
and connect the test adapter (test IMV, Mot. 1711),
–disconnect the four injectors electrically,
–switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system,
–go to the Main computer statuses and parameters screen,
–run the starter for 5 seconds,
–read the maximum rail pressure value PR038 Rail pressure during the test on the diagnostic tool.
If the rail pressure (PR038 Rail pressure) is lower than 1050 bar, run test 6: High pressure system check.
–Switch off the ignition, and reconnect the four injectors electrically,
–disconnect the test IMV and reconnect the low-pressure actuator connector to the pump,
–switch on the ignition again, and clear the injection faults using the diagnostic tool.
End of TEST 8.
A

13B-230V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
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 an
electronic scale similar to those used in body paint workshops (for example: PANDA part no. 77 11 224 995).
Record the weight of the empty 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 364 (Mégane II) or MR 370 (Scénic II), MR 385
(Modus), MR 392 (Clio III), MR 411 (New Twingo), MR 417 (Kangoo 2), Mechanical, 19C, Tank, Fuel tank
draining), 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 it settle for approximately2 minutes.
Is the fuel cloudy or does it
separate into two parts?The diesel fuel contains water and is not compliant.
Drain the fuel circuit, including the tank (see MR 364 (Mégane II)
or MR 370 (Scénic II), MR 385 (Modus), MR 392 (Clio III), MR 411
(New Twingo), MR 417 (Kangoo 2), Mechanical, 19C, Tank, Fuel
tank drain).
YES
NO
A
DCM1.2_V48_TEST13/DCM1.2_V4C_TEST13/DCM1.2_V50_TEST13/DCM1.2_V54_TEST13/DCM1.2_V58_TEST13/DCM1.2_V5C_TEST13