2012 RENAULT SCENIC check engine

13B-429V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 2
VALIDATING THE REGENERATION PROCESS:
At the end of regeneration, a message appears to announce whether the regeneration was successful:
•Particle filter regeneration finished:
Consult PR1012 Weight of soot after regeneration. If this parameter is less than 15 g, the particle filter
regeneration was successful. If PR1012 is greater than 15 g, it is necessary to carry out a second particle filter
regeneration using the diagnostic tool and run command SC017.
IMPORTANT:
Before performing a second After-Sales regeneration of the particle filter, the engine must be allowed to cool
down for 2 hours with the bonnet open.
Do not carry out an engine oil change before a second After-Sales regeneration.
For Vdiag 28 and 62:
Change the engine oil if requested by a message on the instrument panel.
For the other VDiag:
Consult PR848 Number of regeneration failures. If PR848 is greater than 3, change the engine oil.
Particle filter too full - replace the particle filter: regeneration has failed. The weight of soot in the particle filter
is so great that it is creating a counter pressure. Deal with any faults that appear or replace the particle filter. Run
command SC036: Reinitialise programming and select After particle filter replacement.
For Vdiag 28 and 62:
Change the engine oil if requested by a message on the instrument panel.
For the other Vdiags:
Consult PR848 Number of regeneration failures. If this parameter is greater than 3, it is essential to
change the engine oil.
EDC16CP33
Program No.: C4
Vdiag No.: 1C, 20, 24, 26,
28, 54, 58, 5C, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-430V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 3
–Particle filter regeneration failed: regeneration failed because the temperature upstream of the turbine is too
low. Apply Test 11 Temperature upstream of turbine too low.
In all cases, carry out the following operations:
– switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes) Communication
lost with computer: EDC16 CP33, check the tool connection and the computer supply,
– switch on the ignition and establish dialogue with the injection computer,
– run command SC036,
– depending on the operation carried out, select After particle filter regeneration with the diagnostic tool or
After particle filter replacement,
–switch off the ignition and wait for the diagnostic tool message (maximum wait 8 min): Loss of dialogue
with the computer: EDC16 CP33, check the tool connection and the computer supply voltage,
– then switch on the ignition again,
clear the present or stored faults from the computer memory (operation to be carried out within 3 minutes of
switching on the ignition).
Note:
Always change the engine oil and the oil filter in the following cases:
• following an After-Sales regeneration only if requested by a message on the CLIP diagnostic tool,
• after particle filter replacement following DF311 Number of failed regenerations exceeded,
– after a second regeneration (when two successive regenerations).
EDC16CP33
Program No.: C4
Vdiag No.: 1C, 20, 24, 26,
28, 54, 58, 5C, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-431V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC031OPERATIONAL FAULT FINDING OF CYLINDERS
NOTESThis command allows fault finding to be carried out on the output of each cylinder and
each injector and applies to all the Vdiags except Vdiag 18, 04 and 44.
Note:
For Vdiags 18, 04 and 44, check that the fuel flow correction value of parameters
PR364 Cylinder no. 1 fuel flow correction, PR365 Cylinder no. 4 fuel flow
correction, PR405 Cylinder no. 2 fuel flow correction and PR406 Cylinder no. 3
fuel flow correction is between: -5 mg/st < X < 5 mg/st.
Reminder: cylinder no. 1 is located at the timing end.
Procedure to be followed:
– select scenario SC031,
– once the conditions have been met, press the confirm button; the test will take approximately 5 minutes,
– the tool displays cylinder no. 1 cut-off and there will be a perceptible engine speed variation when the cylinder
is cut off; then the same procedure for the other three cylinders,
–the diagnostic tool displays the results,
– end of test.
Interpretation of correct results:
– If the displayed results are “VALID”, it means that the entire cylinder and injector assembly is in order. There
is no need for any operation.
Results Interpretation of results
Cylinder 1 VALID No operation
Cylinder 2 VALID No operation
Cylinder 3 VALID No operation
Cylinder 4 VALID No operation
EDC16CP33_V1C_SC031 / EDC16CP33_V54_SC031 / EDC16CP33_V20_SC031 / EDC16CP33_V58_SC031 / EDC16CP33_V5C_SC031 /
EDC16CP33_V24_SC031 / EDC16CP33_V08_SC003 / EDC16CP33_V4C_SC031 / EDC16CP33_V34_SC031 / EDC16CP33_V38_SC031 /
EDC16CP33_V74_SC031 / EDC16CP33_V28_SC031 / EDC16CP33_V62_SC031 / EDC16CP33_V26_SC031 / EDC16CP33_V60_SC031
EDC16CP33
Program No.: C4
Vdiag No.: 08, 1C, 20, 24,
26, 28, 34, 38, 4C, 54, 58,
5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-432V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC031
CONTINUED
– If a displayed result is INVALID, the cylinder or injector is not correct.
Difference compared to average ResultsInterpretation of
results
Cylinder XNegative number or
Positive numberINVALIDCarry out the checks
described below.
Run part B of Test 10 Poor injector operation to continue fault finding.
If the result of scenario SC031 is not confirmed, check the engine compressions:
Use a compression gauge and apply command VP036 Fuel supply inhibition (see Interpretation of
commands).
Run compressions on all cylinders.
Are the compressions correct?
Check the cylinder block.Check the fitting of the injector and repair if
necessary.
Otherwise change the injector concerned.
After replacing the injector, follow the
injector code programming procedure (see
Replacement of components), run SC036
Reinitialise programming, and select the
number of the injector replaced.
NOYES
EDC16CP33
Program No.: C4
Vdiag No.: 08, 1C, 20, 24,
26, 28, 34, 38, 4C, 54, 58,
5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

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-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-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.