sensor RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16C36 Workshop Manual

13B-335V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
*temp: temperature
*sens: sensor
PR671PARTICLE FILTER DOWNSTREAM TEMPERATURE SENS* VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the particle filter downstream temperature sensor voltage in
volts.
NOTESThis parameter exists only on certain F9Q816 engines with Vdiag48
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C, without electrical consumers
PR671 ≈ 5 V
In the event of a fault, refer to the interpretation of fault DF309 Particle filter downstream temp* sensor circuit.
EDC16C36_V48_PR671/EDC16C36_V58_PR671
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 58

13B-338V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR777RICHNESS RATIO SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the richness ratio sensor voltage in volts.
NOTESSpecial notes:
This status only concerns certain F9Q818 engines. Check that the vehicle is definitely
equipped with a richness ratio sensor.
Conformity check with engine stopped and ignition on
PR777 = 0 ± 0.1 V
In the event of a fault, consult the interpretation of DF967 Richness ratio sensor circuit.
Conformity check with engine running, engine coolant temperature > 80°C
PR777=2±0.1V
In the event of a fault, consult the interpretation of DF967 Richness ratio sensor circuit.
EDC16C36_V44_PR777/EDC16C36_V48_PR777/EDC16C36_V4C_PR777
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 48, 4C

13B-339V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
*temp: temperature
PR778RICHNESS RATIO SENSOR TEMP*
PARAMETER
DEFINITIONThis parameter indicates the richness ratio sensor temperature.
NOTESSpecial notes:
This status only concerns certain F9Q818 engines. Check that the vehicle is definitely
equipped with a richness ratio sensor.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
PR778 ≈ 780°C
In the event of a fault, refer to the interpretation of DF970 Richness ratio sensor heating circuit.
EDC16C36_V44_PR778/EDC16C36_V48_PR778/EDC16C36_V4C_PR778
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 48, 4C

13B-340V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR779RATIO SENSOR RICHNESS
PARAMETER
DEFINITIONThis parameter indicates the ratio sensor richness.
NOTESSpecial notes:
This status only concerns certain F9Q818 engines. Check that the vehicle is correctly
fitted with a richness ratio sensor
Conformity check with engine stopped and ignition on
PR779 ≈ 1
In the event of a fault, refer to the interpretation of fault DF980 Richness ratio sensor function.
Conformity check with engine running, engine coolant temperature > 80°C
0.20 < PR779 < 0.40
In the event of a fault, refer to the interpretation of fault DF980 Richness ratio sensor function.
EDC16C36_V44_PR779/EDC16C36_V48_PR779/EDC16C36_V48_PR779
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 48, 4C

13B-350V9 MR-372-J84-13B450$160.mif
13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Tool
commandDiagnostic tool title comments
SC001Write saved data See Interpretation of commands.
SC002Enter injector codes See Interpretation of commands.
SC003Save computer data See Interpretation of commands.
SC017Particle filter regeneration See Interpretation of commands.
SC031Operational fault finding of cylinders See Interpretation of commands.
SC035High pressure fuel circuit fault finding See Interpretation of commands.
SC036Reinitialise programming See Interpretation of commands.
RZ001Fault memory See Interpretation of commands.
RZ005Programming See Interpretation of commands.
RZ034Computer memory See Interpretation of commands.
LC009Air conditioning See configuration and programming.
LC056Heating elements See configuration and programming.
LC065Water in diesel fuel sensor See configuration and programming.
LC120Cruise control See configuration and programming.
LC121Speed limiter See configuration and programming.
AC004Turbocharging solenoid valve See Interpretation of commands.
AC011Rail pressure regulator See Interpretation of commands.
AC012Damper valve See Interpretation of commands.
AC037Preheating relay See Interpretation of commands.
AC038Low speed GMV relay See Interpretation of commands.
AC039High speed GMV relay See Interpretation of commands.
AC103EGR by-pass See Interpretation of commands.
AC231Richness ratio sensor heating See Interpretation of commands.
VP010Write VIN See Interpretation of commands.
VP036Fuel supply inhibited See
Interpretation of commands.
VP037Lift fuel supply inhibition See Interpretation of commands.
DIESEL INJECTION
Fault finding – Command summary table

13B-367
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC004TURBOCHARGING SOLENOID VALVE
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault or
– after processing the interpretation of PR041 Turbocharging pressure or
– after a customer complaint (loss of power, smoke etc.).
Ignition on and engine stopped.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
1. The following procedure is for checking that the turbocharger and its control circuit are working
properly.
Check the sealing of the high pressure air circuit, run test 3 Low pressure circuit check
Pipe not joined or pierced, pressure sensor disconnected or poorly fitted (seal present), exchanger pierced.
To test the exchanger: stabilise the engine speed between 3500 and 4000 rpm with the vehicle stopped and check
that there are no leaks.
Measure the resistance of the turbocharging pressure solenoid valve between the following connections:
– Connection code 3MG,
– Connection code 3FB,
of component 1475.
Replace the solenoid valve if its resistance is not: 20 Ω ± 2 at +23°C.
Check the continuity, insulation, and the absence of interference resistance on the following connections:
– Connection code 3MG between components 1475 and 120.
– Connection code 3FB between components 1475 and 983.
Run command AC004, if a faint whistling noise is heard along with a clicking from the solenoid valve, go to step
2, otherwise check the operation of the computer output stage:
Vehicle under + after ignition feed, clear the faults displayed by the diagnostic tool.
With the voltmeter in the direct current position:
With the turbocharging solenoid valve connected, connect the voltmeter earth lead to connection 3MG of
component 1475 and the positive lead to connection3FB.
Run command AC004, the voltmeter should display four successive voltages of 2.4 V ± 0.2 V.
If the measurement is not correct, contact the Techline.
EDC16C36_V44_AC004/EDC16C36_V4C_AC004/EDC16C36_V48_AC004/EDC16C36_V50_AC004/EDC16C36_V54_AC004/
EDC16C36_V58_AC004EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-370
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC011
CONTINUED
Step 2
In the event of rail overpressure:
Check that there are no air bubbles in the diesel fuel low pressure circuit.
Check that the rail pressure sensor is operating correctly.
Consult the interpretation of parameter PR038 Rail pressure.
If these checks reveal no irregularities, replace the regulator.
in the event of rail underpressure:
Check that the rail pressure sensor is operating correctly.
Consult the interpretation of parameter PR038 Rail pressure.
Check the low pressure diesel circuit priming.
Check the conformity of the diesel filter connections.
Check the condition of the filter (clogging and water saturation).
Check that there are no air bubbles between the filter and the high pressure pump.
Check the sealing of the low and high pressure diesel fuel systems: use ALP6 Fuel circuit leaks (visual
inspections, touch tests, odours, etc.) on:
pump body, pressure release valve, pipes, rail and injectors unions, injector wells, etc.
Check the conformity of the seal fitting on the pressure regulator.
Check the operation of the injectors, run Test 10 Poor injector operation.
Carry out the necessary repairs.
If the engine starts:
Clear any faults.
Check the pressure regulator by applying (see ALP7 Rough idle).
With the engine warm, leave it to idle for a few minutes (3 to 5 minutes):
– If it stalls and the fault reappears, replace the regulator.
– If it does not stall, stabilise the engine speed at 2000 rpm(1 minute) then accelerate at full load until it cuts out.
If the engine stalls, contact the Techline
If the engine does not startor there is no timing:
first, replace the regulator and if the fault is still present, contact the Techline.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-378
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
VP036INHIBIT FUEL SUPPLY
NOTESThis command enables you to disable the supply to the injectors.
This command is carried out with the engine switched off, and ignition on.
This command allows the injectors to be locked, so that starting is not possible.
Command VP036 allows the engine compressions to be checked in complete safety without disconnecting the
injector connectors or the TDC sensor.
Procedure to follow: (cylinder no. 1 is located on the flywheel end).
– Remove all the heater plugs, connect the compression gauge.
– Position the gear lever in neutral (manual gearbox) or on position P (automatic gearbox).
– Depress the brake pedal and maintain this position.
– Activate command VP036.
– Try to start the vehicle.
– Check the engine compressions.
Start the procedure again on another cylinder.
WARNING
Keep the brake pedal depressed for the length of the test.
Re-establish control of the injectors using command VP037 Stop fuel supply inhibition.
EDC16C36_V44_VP036/EDC16C36_V4C_VP036/EDC16C36_V48_VP036/EDC16C36_V50_VP036/EDC16C36_V54_VP036/
EDC16C36_V58_VP036EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-383
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP2 Starting difficult (or impossible)
NOTESBefore analysing 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.
Is it difficult or impossible to start the engine?
PART A:
Check the engine earths.
If the engine speed is less than 200 rpm, refer to Technical Note 6014A, Checking the charging circuit, Starter
fault finding, Starter.
If an engine speed of 200 rpm is achieved with starter motor in operation, PR055 Engine speed.
If the engine speed shown on CLIP is zero and the engine is running, check the resistance of the engine speed
sensor between the following connections:
– Connection code 3BG,
– Connection code 3BL,
of component 149.
Replace the sensor if the resistance is not between 200 Ω and 270 Ω at 20°C.
Check the continuity and insulation of the following connections:
– Connection code 3BG,
– Connection code 3BL,
between components 120 and 149.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
Check the conformity of the engine earths (oxidation, tightness, etc.).
Check the mounting and condition (overheating) of the sensor.
Replace if necessary.
Check the synchronisation of the camshaft sensors and the engine speed sensors with the display of ET238
Synchronisation. If synchronisation is not active, refer to the checks described in DF195 Camshaft/engine
speed consistency.
Check the fuel circuit for leaks using test 3 Low pressure circuit check.
If test 3: Low pressure circuit check is correct.
PART
B
Impossible
Difficult
EDC16C36_V44_ALP02/EDC16C36_V4C_ALP02/EDC16C36_V48_ALP02/EDC16C36_V50_ALP02/EDC16C36_V54_ALP02/
EDC16C36_V58_ALP02EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-384
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP2
CONTINUED 1
Test the high pressure fuel circuit:
Run the scenario SC035 High pressure fuel circuit fault finding (see Interpretation of commands).
Check that the heater plugs are actuated using the AC037 Preheating relay command.
Check the tightness and the condition of the inlet circuit: run test 4: Turbocharged air inlet circuit check and
follow the procedure.
Check that the exhaust is not blocked, run test 1 Exhaust system check and follow the procedure.
Check the consistency of the signal from the engine coolant temperature sensor.
Check the operation of the rail pressure regulator (DRV) using command AC011 Rail pressure regulator.
Check the timing setting.
End of part A
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58