2011 RENAULT SCENIC fuel pump

13B - 184
DIESEL INJECTION
Fault finding - Interpretation of parameters13B
V10 MR-372-J84-13B150$658.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
PR038
RAIL PRESSURE
NOTESPerform this fault finding procedure:
– after the interpretation of fault DF053 Rail pressure regulation function,
– after an inconsistency for PR038 noted in the Parameters menu,
– after the interpretation of the fault finding procedure for AC011 Rail pressure
regulator,
– following a customer complaint (starting faults, poor performance, stalling, etc.).
Check the continuity and the absence of interference resistance on the following connections:
Injection computer, brown 48-track connector
B, track G3Track 2 of the rail pressure sensor connector
Injection computer brown 48-track
connector B, track A4Track 3 of the rail pressure sensor connector
Injection computer, brown 48-track connector
B, track C4Track 1 of the rail pressure sensor connector
If all these connections are correct, check for fuel pressure sensor power supply:
+ 5 V Track 3 of the rail pressure sensor connector
Earth Track 1 of the rail pressure sensor connector
Repair if necessary.
Check the sealing of the low and high-pressure diesel circuits (visual inspections, odour) pump housing,
overpressure valve, pipes, rail and injector unions, injector wells, etc.
If all of the previous checks are correct, switch the ignition on, wait for more than 1 minute and display PR038 Rail
pressure.
If the value is less than 50 bar, the rail pressure sensor is correct. If it is greater than this value, replace the rail
pressure sensor and tighten it to 35 ± 5 Nm.
AFTER REPAIRRepeat the conformity check from the start.
EDC16_V44_PR038/EDC16_V48_PR038/EDC16_V4C_PR038

13B-205
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 2Starting faults
(or starting impossible)
NOTESBefore dealing with this customer complaint, check that there are no faults,
and he conformity (or otherwise) of the parameters and statuses using the
diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Is starting difficult or impossible?
difficult
Check the engine earths.
Make sure that the engine speed reaches 250 rpm when the starter motor is operated, displayed in
the parameter screen.
Ensure that the correct fuel is being used. Run test 5 Diesel fuel conformity check.
Check the conformity of the fuel filter connections.
Ensure that the fuel filter is not saturated with water.
Check there are no air bubbles between the filter and the high pressure pump.
Check the operation of the preheating unit and heater plugs with command AC001 Preheating unit.
Check the condition of the air filter (clogging).
Check the seal of the high-pressure diesel circuit, pump, pipes, unions (visual checks + odours).
Check the position of the EGR valve: jamming or mechanical seizure.
Check the consistency of the signal from the engine coolant temperature sensor.
Check that the pressure regulator is working correctly (see the interpretation of command AC011 Rail
pressure regulator).
Check the operation of the injectors (too much return leakage, clogging, seizing) referring to Component
test, Test 1 Injector Test.
Check the compression balance, according to current consumption during the starting phase
(Compression test menu on the Clip tool).
In the event of imbalance, use a compression gauge to refine the reading (see the procedure in the Workshop
Repair Manual). After the operation, clear the faults caused by disconnecting the regulator and the heater
plugs.
impossible
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP2 / EDC16_V48_ALP2 / EDC16_V4C_ALP2
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-206
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 2
CONTINUED
Refer to the engine
immobiliser fault finding
procedure in the UCH fault
finding.
Check the timing setting, and
the position of the high
pressure pump sprocket.
Check the cylinder
compressions.
Check the cylinder balance
using the Clip function,
Compression test physical
measurement icon.
ET003 not correct or
immobiliser warning
light permanently
illuminated
YESFrom the STATUS menu on your fault finding tool, check the conformity of
the immobiliser system: ET003 Engine immobiliser should be INACTIVE.
ET003 correct (Immobiliser code
warning light switched off)
Check the battery charge and the condition and tightness of the terminals.
Ensure that engine speed reaches 250 rpm when the starter motor is
operated. This is displayed on the parameter screen.
Check the engine earths.
Check the conformity of the inertia switch (according to equipment).
Check the presence and conformity of fuel in the tank. Run test 5 Diesel
fuel conformity check.
Check for the 12 V after relay feed on tracks G1 and M2 of connector B
on the engine management computer (via injection relay).
Check the engine fuses (and their mountings, wires and terminals).
test
Operate the starter:
Does the pressure increase in the rail:
Rail pressure = ~ 170 bar at ~ 250 rpm?
NO
Run a fault finding check on the regulator and high pressure pump by
applying the interpretation of command AC011 Rail pressure regulator.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-209
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 5 Irregular engine operation
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.
If the engine bucks or races during gear changes, check the conformity of the clutch switch.
If the fault is still present:
– Ensure that the correct fuel is being used. Run test 5 Diesel fuel conformity check.
– Check the low pressure diesel circuit priming.
– Check the conformity of the low-pressure circuit connections.
– Check the conformity of the diesel filter and that it is not saturated with water (replace the filter if necessary).
– Check that there are no air bubbles between the filter and the high pressure pump.
– Check the conformity of the rail pressure (warm engine):
± 25 bar around the rail pressure value at idle speed, (the minimum to maximum variations in the rail
pressure at idle speed should not exceed 50 bar).
approximately 1350 bar under load with foot hard down on the accelerator.
In the event of a fault, apply the interpretation of command AC011 Rail pressure regulator.
Check the conformity of the air flow, apply the interpretation of parameter PR132 Air flow.
If the fault is still present:
– Check the injector operation using Test 1 Injector test.
– Check cylinder balancing using the CLIP function, Compression test physical measurement icon.
– Check engine compression where necessary.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP5 / EDC16_V48_ALP5 / EDC16_V4C_ALP5EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-210
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 6 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 seal and condition of the inlet circuit.
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 check the conformity of the engine speed signal, check:
– The wiring.
– The flywheel position and the condition of the flywheel teeth.
– The position and tightness of the engine speed sensor.
– Check the fuel flow correction at each individual injector, run test 1 Injector test.
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).
Check the engine timing (and the position of the high pressure pump sprocket).
Check the lower engine:
– Check the compressions using the Compression Test on the CLIP Technic diagnostic tool or the special tool.
– Check the engine mounts only if there is noise or excessive vibrations at idle speed.
If the checks are correct, contact the Techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP6 / EDC16_V48_ALP6 / EDC16_V4C_ALP6EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-229
MR-372-J84-13B150$893.mif
V10
13B
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Tests
1
TEST5 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.
Remove 1 L of fuel at the diesel filter outlet (see MR 364 (Mégane) or 370 (Scénic), 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 allow it to 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 364 (Mégane)
or 370 (Scénic), Mechanical, 19C, Tank, Fuel Tank:
Draining).
YES
NO
A
EDC16_V44_TEST5 / EDC16_V48_TEST5 / EDC16_V4C_TEST5

13B-236
DIESEL INJECTION
Fault finding - Glossary13B
V10 MR-372-J84-13B150$940.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4CDIESEL INJECTION
Fault finding - Glossary
(R = Resistance, EGR = Exhaust gas recirculation)Injection computer112-track (BOSCH)
Connectors: black A 32-track, brown B 48-track, grey C 32-track
Atmospheric pressure sensorIntegrated into the computer (BOSCH)
Injector0.33Ω at + 20°C / 2Ω max (BOSCH)
1350 bar
Flow regulator (high pressure
pump)R= 3Ω at + 20°C (BOSCH, CP3.2+ pump type)
Rail pressure sensorRail pressure limiter: opening at around 1600 bar
(BOSCH, bolted to the rail)
Engine speed sensorR = 680 ± 170Ω at + 20°C (MGI)
Camshaft sensorHall effect sensor (ELECTRICFIL)
R = 10250 ± 500Ω at + 20°C (measurement between tracks 2 and 3
of the sensor)
Turbocharger control solenoid
valve15.4 ± 0.7Ω at + 20°C (PIERBURG)
Electric EGR valveTrack 1: + 12 V solenoid
Track 2: + 5 V potentiometer
Track 3: Not usedTrack 4: potentiometer earth
Track 5: solenoid earth
Track 6: potentiometer signal
SOLENOID: R between tracks 1 and 5 = 8 ± 0.5Ω at + 20°C
POTENTIOMETER: R between tracks 2 and 4: 4 ± 2 kΩ at + 20°C
(Pierburg)
EGR by-pass solenoid valveR= 46 ±3Ω at + 25°C
(EATON/BITRON)
Electric damper valveDIRECT CURRENT MOTOR
(VDO)
Air flowmeterTrack 1: air temperature signal
Track 2: flow sensor earth
Track 3: + 5 V flowmeterTrack 4: + 12 V battery
Track 5: air flow signal
Track 6: battery earth
(SIEMENS)
Air temperature sensorR = 3714Ω ± 161 at + 10°C/2448Ω ± 96 at + 20°C/1671Ω ± 59 at
+30°C
Coolant temperature sensorR = 2252Ω ± 112 at 25°C/811Ω ± 39 at 50°C/283Ω ±8 at 80°C
Fuel temperature sensorR = 2051Ω ± 123 at 25°C/810Ω ± 47 ± at 50°C/309Ω ± 17 at 80°C
Accelerator pedal sensorR gang 1 = 1700 ± 900Ω
R gang 2 = 2850 ± 2050Ω
Heater plugR= 0.6Ω at + 20°C/2Ω max
Maximum current drawn: 28 A at 0 seconds/12 A at 10 seconds/9 A after
30 seconds
Diesel fuel temperature sensorAccording to application (ZERTAN)
MR-372-J84-13B150$940.mif