2011 RENAULT SCENIC wheel

13B-10V4 MR-372-J84-13B000$020.mif
DIESEL INJECTION
Fault finding – System operation13B
DDCR INJECTION
Vdiag No.: 44, 48
Measuring the angular position (Cylinder reference sensor)
The angular position is measured using a magneto-inductive sensor triggered by machined teeth on the engine
flywheel. This flywheel has 60 teeth separated by six degrees, minus 2 missing teeth that form a notch.
A second sensor (Hall effect), activated by a machined tooth on the high pressure pump drive pulley
(synchronised with the camshaft), which rotates at half the engine speed, supplies a signal showing the progress of
the injection cycle. By comparing the signals from these two sensors, the computer's APS module (Angular Position
Subsystem) can supply the entire system with the synchronisation factors, namely: the angular position of
the flywheel, the engine speed, the number of the active injector, and the injection cycle timing. This module also
supplies the system with the engine speed signal.
Flow capacity function (VLC)
Because of the combination of several parameters such as the diesel fuel temperature, part wear, clogging of the
diesel filter, etc., the system may reach its limit during its service life. If this happens, the rail pressure cannot be
maintained because the pump lacks the necessary capacity. If the pump lacks the necessary capacity, this
programming will therefore reduce the requested flow to a value that will enable the pressure monitoring system to
control the pressure again.
The customer may have noticed a loss of vehicle performance when this program is activated (confirmed by
ET563 Flow capacity function). This is part of normal operation.
Function: Air flow management.
EGR valve control
The EGR (Exhaust gas recirculation) system comprises a proportional EGR valve with a built-in valve position
feedback potentiometer. The EGR valve position is controlled by the potentiometer in a closed loop and/or by
changes in the estimated air flow.
Calculation of the air flow
WITHOUT FLOWMETER (K9K 722)
Certain models are not fitted with air flowmeters. In this case the amount of fresh inlet air must be evaluated, based
on the values supplied by the surrounding systems. The (theoretical) air volume is calculated using a model with
these calculation parameters:
– the inlet air temperature measured by a sensor located after the turbocharger and/or after the intercooler (if fitted),
– the turbocharging pressure,
– the atmospheric pressure (external air),
– the EGR valve position,
– the fuel flow,
– the engine speed.
The atmospheric pressure sensor is optional. If fitted, it sends back an atmospheric pressure signal to an analogue
port on the micro-controller. If not, atmospheric pressure is recovered based on the turbocharger pressure
and the engine field.

13B-19V4 MR-372-J84-13B000$030.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
DDCR INJECTION
Vdiag No.: 44, 48
REPLACING THE INJECTORS:
The system may be configured via the diagnostic socket using the RENAULT CLIP diagnostic tool.
The C2I parameters must be replaced after replacing an injector/injectors.
To do this, reprogram the C2I into the computer using the following commands:
Cylinder 1 injector: command VP001 Cylinder 1 injector code (cylinder at flywheel end).
Cylinder 2 injector: command VP002 Cylinder 2 injector code.
Cylinder 3 injector: command VP003 Cylinder 3 injector code.
Cylinder 4 injector: command VP004 Cylinder 4 injector code.
It is also possible to enter the four C2I using command SC002 Enter injector codes.
The technician can use the appropriate command to re-enter the new C2I for the replaced injector and to erase the
old C2I.
–Only after simultaneously replacing at least three injectors, reset the injector programming adaptives, using
command RZ004 Pressure regulation programming adaptives. IMPORTANT
AFTER A PROGRAMMING OPERATION, DO NOT CONNECT THE BATTERY FOR AT LEAST 30 minutes (to
carry out other work on the vehicle).
Note:
If commands SC001 and SC003 have been lost or if they are not operating after programming the computer:
– Enter the C2I for each injector manually, by reading the C2I on each injector (see Replacement of
components, Injector replacement).
– Use command AC028 Static test to reinitialise the computer (fan assembly, etc.).
– Switch the ignition off and then on again.
– Clear the engine management computer faults.
IMPORTANT
It is not possible to try an injection computer from the Parts Department as it will not be possible to fit it on another
vehicle afterwards.
Note:
C2I (individual injector correction) is a calibration carried out in the factory on each injector to adjust the flow
of each injector precisely.
The correction values are written on a label affixed to each injector, then entered in the computer which can then
actuate each injector by taking account of their manufacturing variation.

13B-27
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF005
PRESENT
OR
STOREDENGINE SPEED SENSOR CIRCUIT1.DEF: Inconsistency.
2.DEF: No signal.
3.DEF: Too many additional teeth.
4.DEF: Teeth missing.
5.DEF: Additional teeth.
6.DEF: Too many teeth missing.
NOTESSpecial notes:
If 1.DEF, 2.DEF, 3.DEF, 6.DEF present: the engine stops and the level 1 warning
light illuminates along with the message Faulty injection.
If 4.DEF, 5.DEF, the engine performance is 75%, no warning light illuminates.
Conditions for applying the fault finding procedure to a stored fault:
the fault is present with the engine under the starter or idling.
Check the connection and condition of the 2-track connector of the engine speed sensor. Repair if necessary.
Ensure the sensor is correctly fitted on the engine.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Measure the resistance at the engine speed sensor terminals.
Replace the engine speed sensor if the resistance is not:
– for 80hp versions (K9K 722): 800 Ω ± 80 Ω at 20°C
– for 100hp versions (K9K 728/729): 680 Ω ± 68 Ω at 20°C
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track A Track F2 computer connector B
Sensor connector track BTrack F3 computer connector B
Repair if necessary.
Check that the flywheel ring gear is not defective (missing teeth).
DDCR_V44_DF005P/DDCR_V48_DF005P

13B-101V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
CRUISE CONTROL / SPEED LIMITER SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or
Status
Check or
actionDisplay and notes Fault finding
Cruise
control/speed
limiterET042:
Cruise
control/speed
limiterNOT DETECTED: Vehicle not equipped with the
cruise control - speed limiter function buttons, OR
after reprogramming the injection computer, the
switch is in the rest position.
INACTIVE: when no buttons are pressed
SPEED LIMITER: Main switch in speed limiter
position.
CRUISE CONTROL: Main switch in cruise control
position.Consult the
interpretation of status
ET042 Cruise
control - speed
limiter.
ET703: Cruise
control/speed
limiter buttonsINACTIVE: No cruise control - speed limiter buttons
are pressed. These buttons are located on the
steering wheel.
PLUS: When the cruise control - speed limiter
+button is pressed. This button is on the steering
wheel, on the left-hand side.
- MINUS: When the cruise control - speed limiter
- button is pressed. This button is on the steering
wheel, on the left-hand side.
- SUSPEND: When the cruise control - speed limiter
0 button is pressed. This button is located on
the steering wheel, to the right.
- RESUME: When the cruise control - speed limiter
R button is pressed. This button is located on
the steering wheel, to the right.Consult the
interpretation of status
ET703 Cruise
control - speed
limiter button.

13B-121V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
CRUISE CONTROL / SPEED LIMITER SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or
Status Check or
actionDisplay and notes Fault finding
Cruise control/
speed limiterET042:
Cruise control/
speed limiterNOT DETECTED: Vehicle not equipped
with the cruise control - speed limiter
function buttons, OR after
reprogramming the injection computer,
the switch is in the rest position.
INACTIVE: when no buttons are
pressed
SPEED LIMITER: Main switch in speed
limiter position.
CRUISE CONTROL: Main switch in
cruise control position.Consult the interpretation of
status ET042 Cruise
control - speed limiter.
ET703: Cruise
control/speed
limiter buttonsINACTIVE: No cruise control - speed
limiter buttons are pressed. These
buttons are located on the steering
wheel.
PLUS: When the cruise control - speed
limiter + button is pressed. This button is
on the steering wheel, on the left-hand
side.
- MINUS: When the cruise control -
speed limiter - button is pressed. This
button is on the steering wheel, on the
left-hand side.
- SUSPEND: When the cruise control -
speed limiter 0 button is pressed. This
button is located on the steering wheel,
to the right.
- RESUME: When the cruise control -
speed limiter R button is pressed. This
button is located on the steering wheel,
to the right.Consult the interpretation of
status ET703 Cruise
control - speed limiter
button.

13B-133
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
ET415
CONTINUED 2
STATUS 4
Cancel button pressed
The cruise control/speed limiter function is deactivated each time the suspend button
is pressed.
Status ET415 becomes STATUS 4, when driving when:
– Either the cruise control is active, or
– the speed limiter is active,
– and the driver presses the 0 button.
This action deactivates the Cruise control/Speed limiter.
Reinitialise status ET415 on the injection computer by running command
RZ001 Fault memory.
If status ET415 becomes STATUS 4 without pressing the 0 button, consult the
interpretation of status ET703 Cruise control - speed limiter buttons and run fault
finding on the R/0 control button located on the right-hand side of the steering wheel.

13B-137
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
ET703 CRUISE CONTROL/SPEED LIMITER BUTTONS
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system programming
functions.
INACTIVEStatus ET703 becomes INACTIVE when none of the cruise control - speed limiter
buttons are pressed. These buttons are located on the steering wheel.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not display INACTIVE,
• check the condition of the cruise control/speed limiter +/- button and the condition
of its connector.
• check the condition of the cruise control/speed limiter R/0 button and the condition
of its connector.
Repair if necessary.
DDCR_V44_ET703/DDCR_V48_ET703

13B-138
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
ET703
CONTINUED 1
INCREASE
Status ET703 becomes PLUS when the cruise control / speed limiter + button is
pressed. This button is on the steering wheel, on the left-hand side.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not display INCREASE, check the condition of the cruise control
- speed limiter +/- button and the condition of its connector. Repair if necessary.
Measure the resistance on the following connections while pressing
the + button (on the button tracks):
• Connection code 86G of component 331.
• Connection code 86M of component 331.
If the resistance is not approximately 300 Ωcheck the continuity of the connection
when the button is not pressed. If there is continuity, replace the +/- control button.
(see MR 364 (Mégane II), MR 370 (Scénic II), Mechanical, 83D, Cruise control,
Steering wheel switch: Removal - Refitting).
DECREASEStatus ET703 becomes DECREASE when the - button of the cruise control/speed
limiter is pressed. This button is on the steering wheel, on the left-hand side.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not change to MINUS, check the condition of the cruise control
/ speed limiter +/- button, and the condition of its connector. Repair if necessary.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure the resistance of the following connections while pressing the "-"
button (on the button tracks):
• Connection code 86G of component 331.
• Connection code 86M of component 331.
If the resistance is not approximately 100 Ωcheck the continuity of the connection
when the button is not pressed. If there is continuity, replace the +/- control button.
(see MR 364 (Mégane II), MR 370 (Scénic II), Mechanical, 83D, Cruise control,
Steering wheel switch: Removal - Refitting).