2012 RENAULT SCENIC Engine And Peripherals EDC16CP33 Workshop Manual

13B-433V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC035HIGH PRESSURE FUEL CIRCUIT FAULT FINDING
NOTESThis command is used to interpret the state of the high pressure fuel circuit (high
pressure pump, rail, injectors and high pressure supply pipes).
To run this command, select scenario SC035 on the diagnostic tool.
Procedure to be followed:
– select scenario SC035,
– follow the instructions then “confirm”,
– with the command in progress: do not operate on the vehicle,
– switch off the engine at the end of the test,
–the diagnostic tool displays the results,
– end of test.
Interpretation of correct results:
– If the results displayed are OK, the entire high pressure fuel circuit is in order. There is no need for any
operation.
STEP X
(X is the variable
from 1 to 4)Rail pressure Raise
timeRail pressure Dump
timeInterpretation of
results
STEP X OK OK No operation
STEP 5 OK No operation
EDC16CP33_V18_SC035 / EDC16CP33_V1C_SC035 / EDC16CP33_V54_SC035 / EDC16CP33_V20_SC035 / EDC16CP33_V58_SC035 /
EDC16CP33_V5C_SC035 / EDC16CP33_V24_SC035 / EDC16CP33_V04_SC035 / EDC16CP33_V08_SC035 / EDC16CP33_V44_SC035 /
EDC16CP33_V4C_SC035 / EDC16CP33_V34_SC035 / EDC16CP33_V38_SC035 / EDC16CP33_V74_SC035 / EDC16CP33_V28_SC035 /
EDC16CP33_V62_SC035 / EDC16CP33_V26_SC035 / EDC16CP33_V60_SC035
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-434V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC035
CONTINUED 1
Interpretation of incorrect results:
– Is one of the value definitions for the various displayed stages is “TOO SLOW” or “TOO FAST”, see the
following table:
STEP X
(X is the variable
from 1 to 4)Rail pressure Raise
timeRail pressure Dump
timeInterpretation of
results
STEP X TOO SLOW TOO SLOW Check 1
STEP X TOO SLOW TOO FAST Check 2
STEP X TOO SLOW OK Check 3
STEP X OK TOO SLOW Check 4
STEP X OK TOO FAST Check 5
STEP 5 TOO FAST Check 5
Explanation of results interpretation:
Check 1:
–Apply Test 10 Poor injector operation.
–Apply ALP6 Fuel circuit leaks.
–Apply Test 3 Low pressure circuit check.
– Replace the high pressure pump.
Check 2:
–Apply Test 10.
–Apply ALP6.
– Apply the part of Test 3 concerning the fuel filter.
– Replace the high pressure pump.
– Check the injector return flow and the injectors.
– Check the rail pressure regulator by running command AC225 Rail pressure regulator.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-435V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC035
CONTINUED 2
Check 3:
–Apply Test 10.
–Apply Test 3.
– Replace the high pressure pump.
Check 4:
– Replace the high pressure pump.
Check 5:
– Check the injector return flow and the injectors.
– Check the pressure regulator on the rail by running command AC225.
– Consult the Repair Manual depending on the results of the various checks (from 1 to 5), (see MR 395 (Laguna
II ph2), MR 364 (Mégane II ph2), MR 370 (Scénic II ph2), MR 405 (Espace IV ph2), MR 402 (Vel Satis ph2),
Mechanical, 13B, Diesel injection, Injector rail, Removal - Refitting).
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-436V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC036REINITIALISE PROGRAMMING
NOTESThis command is used to reset the computer parameters according to the type of
operation or component repaired or replaced from the following list:
– the injectors
– the EGR valve,
– the damper valve,
– after particle filter replacement,
– after particle filter regeneration using the CLIP diagnostic tool,
– after injection computer replacement with no backup option,
– the heater plugs.
Ignition on and engine stopped.
To run this command, select scenario SC036 in the diagnostic tool.
Procedure to be followed:
– on the main screen, select the component to reinitialise after an operation (removal - refitting, regeneration or
replacement of the component),
– select YES then OK to begin reinitialisation,
–Important: when reinitialising injectors, do not forget that cylinder no. 1 is located at the timing end,
– select end on the configuration completed screen to return to the main screen,
– end of operation.
EDC16CP33_V18_SC036 / EDC16CP33_V1C_SC036 / EDC16CP33_V54_SC036 / EDC16CP33_V20_SC036 / EDC16CP33_V58_SC036 /
EDC16CP33_V5C_SC036 / EDC16CP33_V24_SC036 / EDC16CP33_V04_SC036 / EDC16CP33_V08_SC036 / EDC16CP33_V44_SC036 /
EDC16CP33_V4C_SC036 / EDC16CP33_V34_SC036 / EDC16CP33_V38_SC036 / EDC16CP33_V74_SC036 / EDC16CP33_V28_SC036 /
EDC16CP33_V62_SC036 / EDC16CP33_V26_SC036 / EDC16CP33_V60_SC036
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-437V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
RZ005PROGRAMMING
NOTESSpecial notes:
this command enables you to reinitialise the entire computer configuration according to
the vehicle.
Command RZ005 reconfigures the computer.
If the computer does not have any configuration data, use command RZ005 to enter the vehicle options:
– air conditioning,
– Passenger compartment heating resistor,
– cruise control/speed limiter.
These options are detected by the computer even if command RZ005 is not used.
The computer is configured as soon as the one of the vehicle's optional system components is operated.
EDC16CP33_V18_RZ005 / EDC16CP33_V1C_RZ005 / EDC16CP33_V54_RZ005 / EDC16CP33_V20_RZ005 / EDC16CP33_V58_RZ005 /
EDC16CP33_V5C_RZ005 / EDC16CP33_V24_RZ005 / EDC16CP33_V04_RZ005 / EDC16CP33_V08_RZ005 / EDC16CP33_V44_RZ005 /
EDC16CP33_V4C_RZ005 / EDC16CP33_V34_RZ005 / EDC16CP33_V38_RZ005 / EDC16CP33_V74_RZ005 / EDC16CP33_V28_RZ005 /
EDC16CP33_V62_RZ005 / EDC16CP33_V26_RZ005 / EDC16CP33_V60_RZ005
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-438V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
RZ034COMPUTER MEMORY
NOTESIMPORTANT
Only use this command if DF107 Computer memory is Present.
Ignition on and engine stopped.
Command RZ034 reinitialises the computer memory.
With the ignition on:
• Use command RZ034.
• Switch off the ignition and wait for the message Communication lost with computer.
• Switch on the ignition again.
• Run the programming commands (see Configuration and programming).
• Switch off the ignition and wait for the message Communication lost with computer.
Perform a road test to reinitialise the vehicle parameters.
EDC16CP33_V18_RZ034 / EDC16CP33_V1C_RZ034 / EDC16CP33_V54_RZ034 / EDC16CP33_V20_RZ034 / EDC16CP33_V58_RZ034 /
EDC16CP33_V5C_RZ034 / EDC16CP33_V24_RZ034 / EDC16CP33_V04_RZ034 / EDC16CP33_V08_RZ034 / EDC16CP33_V44_RZ034 /
EDC16CP33_V4C_RZ034 / EDC16CP33_V34_RZ034 / EDC16CP33_V38_RZ034 / EDC16CP33_V74_RZ034 / EDC16CP33_V26_RZ034 /
EDC16CP33_V28_RZ034/ EDC16CP33_V60_RZ034 / EDC16CP33_V62_RZ034
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-439V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC004TURBOCHARGING SOLENOID VALVE
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault or,
– following application of the interpretation of PR041 Turbocharging pressure or
– after a customer complaint (loss of power, smoke etc.).
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
1. The following procedure is for checking that the turbocharger and its control circuit are working
properly.
Preliminary operation
Check the high pressure air circuit is sealed:
Apply Test 4 Turbocharged air inlet circuit check or 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 between connections3FB and 3MG of component1475.
If the resistance is not between 18 Ω and 22 Ω at + 23°C, replace the turbocharging solenoid valve.
Check the continuity of the following connection:
•3MG between the components 120 and 1475.
Check the + 12 V after relay supply of the turbocharging solenoid valve on the following connection:
•3FB of component 1475.
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.
EDC16CP33_V18_AC004 / EDC16CP33_V1C_AC004 / EDC16CP33_V54_AC004 / EDC16CP33_V20_AC004 / EDC16CP33_V58_AC004 /
EDC16CP33_V5C_AC004 / EDC16CP33_V24_AC004 / EDC16CP33_V04_AC004 / EDC16CP33_V08_AC004 / EDC16CP33_V44_AC004 /
EDC16CP33_V4C_AC004 / EDC16CP33_V34_AC004 / EDC16CP33_V38_AC004 / EDC16CP33_V74_AC004 / EDC16CP33_V28_AC004 /
EDC16CP33_V62_AC004 / EDC16CP33_V26_AC004 / EDC16CP33_V60_AC004
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-440V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC004
CONTINUED
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 connection 3FB of component 1475. Run command AC004; the
voltmeter must display four successive voltages between 2.2 V and 2.6 V.
If the measurement is not correct, contact the Techline.
2. turbocharger control circuit check
–Apply Test 7 Variable geometry turbocharger control.
– With the engine stopped, make sure that the control rod is in the resting position.
– Start the engine and make sure that the control rod actuates to the upper stop.
(when the engine stops, the control rod should return to the rest position).
If the control rod does not move correctly, carry out the following checks:
1. Check the control vacuum:
– Disconnect the solenoid valve inlet hose and connect it to a pressure gauge.
– Start the engine and run it at a stable idle speed.
If the vacuum does not reach a value between 0.250 bar and 0.550 bar, check the vacuum circuit from the
vacuum pump.
– Stop the engine, reconnect the inlet hose and move onto step no. 2.
2. Check the solenoid valve actuation:
– Disconnect the solenoid valve outlet hose.
– Start the engine and run it at a stable idle speed.
– Place your hand on the solenoid valve and block the outlet union with your thumb.
– If there is no perceptible vibration of the solenoid valve, contact the Techline.
3. Check the solenoid valve actuation:
– Connect the pressure gauge to the solenoid valve outlet union.
– Start the engine and run it at a stable idle speed.
If the vacuum does not reach a value between 0.250 bar and 0.550 bar, replace the solenoid valve.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.