2011 RENAULT SCENIC heater

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-207
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 3 Injection noise
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 injection noise occurs after starting from cold:
Check the low pressure diesel circuit priming.
Check the fuel heater supply.
Check the operation of the preheating system.
Check that fuel and engine temperatures are consistent.
If the complaint is still present, check the rail pressure (Parameter menu) and apply the interpretation
of command AC011 Rail pressure regulator.
If the injection noise occurs at idle speed:
Check the condition of the injector connector and pressure regulator terminals.
Check the conformity of the air flow signal (consult parameter PR018 Estimated air flow).
Check the condition of the EGR valve (clogging, blocked, seized).
If the complaint is still present, perform the injector fault finding procedure with Test 1 Injector test.
Does the injection noise occur at all engine speeds?
Carry out fault finding on the injectors with Test 1 Injector Test.
Check the condition of the injector connector and pressure regulator terminals.
Ensure that the correct fuel is being used.
Check the conformity of the air flow signal (consult the interpretation of parameter PR132 Air flow).
If the customer complaint is still present, check the rail pressure (parameter menu) and apply the interpretation
of command AC011 Rail pressure regulator.
If the injection noise occurs at transitional speed:
If the engine races during gear changes, check the conformity of the clutch switch.
When changing gear during a road test, display parameter PR017 Fuel flow. if it varies without greatly affecting
the rail pressure, perform the fault finding procedure for AC011 Rail pressure regulator.
If the fault is still present, carry out a fault finding check on the injectors (seeTEST 1).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP3 / EDC16_V48_ALP3 / EDC16_V4C_ALP3EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

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