clutch RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual

DIESEL INJECTION
Fault finding – Cleanliness guidelines13B
13B - 7V3 MR-372-J84-13B250$033.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Cleanliness guidelines
I - RISKS ASSOCIATED WITH CONTAMINATION
The high pressure direct injection system is highly sensitive to contamination. The risks associated with
contamination are:
–damage to or destruction of the high pressure injection system,
–components jamming,
–a component leaking.
All After-Sales operations must be performed under very clean conditions. This means that no impurities (particles a
few microns in size) should have entered the system during dismantling.
The cleanliness principle must be applied from the filter to the injectors.
What are the sources of contamination?
metal or plastic swarf,
–paint,
–fibres:
–from cardboard,
–from brushes,
–from paper,
–from clothing,
–from cloths,
–foreign bodies such as hair,
–ambient air,
–etc.
II - NOTES TO BE FOLLOWED BEFORE ANY OPERATION
Check that you have plugs for the unions to be opened (set of plugs available from the Parts Department). The plugs
are single-use only. After use, they must be discarded (once used they are soiled and cleaning is not sufficient to
make them reusable). Unused plugs must be discarded.IMPORTANT
Cleaning the engine using a high pressure washer is prohibited because of the risk of damaging connections. In
addition, moisture may collect in the connectors and create electrical connection faults.
IMPORTANT
Before any work is carried out on the high pressure injection system, protect:
–the accessories and timing belts,
–the electrical accessories, (starter, alternator, electric power-assisted steering pump),
–the flywheel surface, to prevent any diesel from running onto the clutch friction plate.
MR-372-J84-13B250$033.mif

DIESEL INJECTION
Fault finding – System operation13B
13B - 13V3 MR-372-J84-13B250$135.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
Passenger Compartment Heating Resistor Management:
In order to reduce the time required to heat up the passenger compartment, the vehicle is fitted with Passenger
Compartment Heating resistors (RCH). These passenger compartment heating resistors are run and controlled by
the UCH. The injection computer authorises or prohibits the operation of the passenger compartment heating
resistors according to the operating phases and engine power needs.
Cruise control/speed limiter management:
The vehicle cruise control function, when activated, allows you to keep the vehicle speed at a selected value
regardless of the driving conditions encountered.
Using the control buttons, the driver can increase or reduce the speed of the vehicle.
If the driver wishes to exceed the cruising speed, he may:
–depress the accelerator pedal and exceed the cruising speed (the vehicle will return to the initial cruising speed
once the driver takes his foot off the pedal),
–press the system control buttons.
The cruise control function can be deselected either by:
–the system control buttons,
–deactivating the cruise control switch,
–when system events are detected, such as the brake pedal or clutch being depressed,
–when system errors are detected such as an inconsistent vehicle speed.
The cruise function can also be temporarily disabled when the driver wants to increase speed by depressing the
accelerator pedal. The cruising speed is resumed when the driver releases the accelerator pedal.
The vehicle will then attempt to reach the cruising speed at a controlled acceleration rate.
It is possible to reactivate the vehicle speed control and resume the last cruising speed after deactivation (computer
supply not cut off).
When activated (using the selection switch) the vehicle speed limiter function limits the vehicle speed to a
preselected value. The driver controls the vehicle in the normal way using the accelerator pedal until the limit speed
is reached.
If an attempt is made to exceed this speed, the system ignores the pedal request and controls the vehicle speed in
the same way as the cruise control function, provided that the driver keeps the accelerator pedal sufficiently
depressed.
Like the cruise control function, the limit speed can be modified by pressing or pressing and holding the control
buttons.
For safety reasons, it is possible to exceed the limit speed by depressing the accelerator pedal and exceeding the
pedal position limit value. The vehicle speed is then totally controlled as a function of pedal position until the speed
falls back below the limit speed when the speed limiter function will once again be reactivated.
If the driver wishes to exceed the cruising speed, he may:
–exceed the accelerator pedal's kickdown point,
–increase the limit speed by pressing or pressing and holding the limit speed switch.
The speed limiter function can be deselected either:
–the system control buttons,
–by switching off the speed limiter switch,
–when system events are detected, such as the brake pedal or clutch being depressed,
–when system errors are detected such as an inconsistent vehicle speed.

DIESEL INJECTION
Fault finding – Allocation of computer tracks13B
13B - 17V3 MR-372-J84-13B250$180.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Allocation of computer tracks
1 - black connector A, 32 tracks 1 - black connector A, 32 tracks (continued)
Track Description
A1Not used
A2Cruise control on/off switch
A3Passenger compartment L1 multiplex
line network signal
A4Passenger compartment H1 multiplex
line network signal
B1Air conditioning inhibition control
B2Engine speed signal
B3Not used
B4K line diagnostic socket output
C1Not used
C2Not used
C3Speed limiter on/off switch
C4Clutch contact input
D1Protection and Switching Unit supply
(+ after ignition feed)
D2Cruise control programming control
D3Cruise control programming feedback
signal
D4Fuel flow signal
E1Not used
E2Air conditioning cycle control
E3Not used
E4Normally-closed brake switch input
F1Not used
F2Accelerator potentiometer load 2
supply
F3Accelerator potentiometer load 2 signal
F4Accelerator potentiometer load 2 earth
Track Description
G1Protection and Switching Unit supply
(+ BAT 1 after relay)
G2Accelerator potentiometer load 1
supply
G3Not used
G4Battery earth
H1Battery earth
H2Accelerator potentiometer load 1 signal
H3Accelerator potentiometer load 1 earth
H4Battery earth
MR-372-J84-13B250$180.mif

DIESEL INJECTION
Fault finding – Fault summary table13B
13B-28V3 MR-372-J84-13B250$270.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
Tool
faultDIAGNOSTIC
TOOL
DESCRIPTIONAssociated
DTCLEVEL 1 FAULT
WARNING
LIGHT (Orange
heater plugs On
indicator light)LEVEL 2 FAULT
WARNING
LIGHT (Red
overheating
warning light)NO
FAULT
WARNING
LIGHT ONOBD
WARNING
LIGHT ON
DF055Turbocharging
pressure
regulation circuit243 1.DEF/2.DEF ... ... ..
DF056Air flow sensor
circuit100CO.0/CC.1/
1.DEF/2.DEF... ...CO.0/CC.1/
1.DEF/
2.DEF
DF057Water in diesel
fuel detector
circuit2264 ... ... X ...
DF059Misfiring on
cylinder 1301 ... ... X ...
DF060Misfiring on
cylinder 2302 ... ... X ...
DF061Misfiring on
cylinder 3303 ... ... X ...
DF062Misfiring on
cylinder 4304 ... ... X ...
DF069Impact detected
signal1620 ... 1.DEF ... ...
DF070Clutch switch
circuit830 ... ...1.DEF/
2.DEF...
DF086Coolant pump
relay control
circuit2600 CO.0/CC.1 ... ... ...
DF091Vehicle speed
signal500 ... ...1.DEF/
2.DEF
3.DEF/
4.DEF ...
DF097Camshaft sensor
circuit340 1.DEF/2.DEF ... ... ...
DF118EGR solenoid
valve servo-
control409 2.DEF ... 1.DEF ...
DF195Camshaft/engine
speed sensor
consistency16 1.DEF ... ... ...
DF209EGR valve
position sensor
circuit486 ... ...CO.0/
CC.1/
1.DEFCO.0/CC.1/
1.DEF

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -101V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF070
PRESENT
OR
STOREDCLUTCH SWITCH CIRCUIT
1.DEF : No signal
2.DEF : Inconsistent signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the clutch pedal is depressed, or during a road test.
Special notes:
If this fault is present, the cruise control/speed limiter function will be inhibited.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
Check the conformity and adjustment of the clutch switch (position, connection).
–display status ET405 Clutch pedal switch:
–when the clutch pedal is engaged, status ET405 should be INACTIVE,
–when the clutch pedal is disengaged, status ET405 should be ACTIVE.
If these checks are not OK, replace the clutch switch.
If the check show the correct results:
Check the connections of the clutch pedal switch.
Check the injection computer connections.
Repair if necessary.
Check continuity and make sure there is no interference resistance on the following connection:
Injection computer black 32-track connector A,
track C4Track 1 clutch pedal switch
Repair if necessary.
Check for the presence of earth on track 2 of the clutch pedal switch.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF070

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -132V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF1070
PRESENT
OR
STOREDCOLD LOOP
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine running and with a heating and air
conditioning system request.
Priorities when dealing with a number of faults:
–DF049 Refrigerant sensor circuit if it is present or stored.
When the fault is present or stored, the heating and air conditioning system is inhibited.
Check fuse F22 (10A) of the UPC and the condition of the air conditioning compressor connector.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the air conditioning compressor wiring.
If the wiring is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Manually check if the compressor is jammed (turn the clutch plate manually to check that there is no point of
resistance). In the event of sticking, replace the air conditioning compressor (see MR 364 (Mégane II) or 370
(Scénic II), Mechanical, Heating and air conditioning system, 62A, Air conditioning, Compressor: Removal
- Refitting).
Top up the refrigerant, check for any leaks and repair if necessary (see MR 364 (Mégane II) or 370 (Scénic II),
Mechanical, Heating and air conditioning system, 62A, Air conditioning, Refrigerant circuit: check,
Refrigerant circuit: Draining - Filling).
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF1070

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 141V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
DRIVER PARAMETERS
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1EnginePR190:Idle speed
setpointIndicates the engine's
rotational speed
setpoint in rpm.In the event of a fault, refer to
the interpretation for fault
DF005 Engine speed
sensor circuit.
PR055:Engine speedGives the engine's
speed in rpm
2Accelerator
pedal position *PR030:Accelerator
pedal positionIndicates the
accelerator pedal
position.
If no pressure is being
applied to the pedal
PR030 = 0 %In the event of a fault, refer to
the interpretation of fault
DF008 Pedal
potentiometer circuit
gang 1 or DF009 Pedal
potentiometer circuit
gang 2.
3Sensor feedPR147:Pedal
potentiometer
voltage gang 1Accelerator pedal
released
0.70 < X < 0.80 VIn the event of a fault, refer to
the interpretation of fault
DF008 Pedal
potentiometer voltage
track 1 or DF009 Pedal
potentiometer voltage
track 2. PR148:Pedal
potentiometer
voltage gang 2Accelerator pedal
released
0.35 < X < 0.40 V
4Brake contactET704:Brake contact
no. 1
Indicates recognition of
brake pedal contacts
INACTIVEIn the event of a fault, consult
the interpretation of status
ET704 Brake switch no. 1.
ET705:Brake contact
no. 2In the event of a fault, consult
the interpretation for status
ET705 Brake switch no. 2.
5Clutch pedalET405:Clutch pedal
switchIndicates recognition of
clutch pedal contacts
RELEASED
(MANUAL)
or WITHOUT
(AUTOMATIC)In the event of a fault, consult
the interpretation of status
ET405 Clutch pedal switch.
(*) Pedal voltages - cold, ignition on (average values stated for information only).
Pedal load 0 % 25 % 50 % 100 % 120 %
Gang 1 voltage 0.74 V 1.52 V 2.09 V 3.23 V 3.67 V
Gang 2 voltage 0.37 V 0.77 V 1.06 V 1.64 V 1.87 V

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 148V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
CRUISE CONTROL/SPEED LIMITER (CONTINUED)
*ECU: Electronic Control Unit
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
2Brake contactET704:Brake switch
No. 1- INACTIVE
- ACTIVE (brake pedal
depressed)In the event of a fault,
consult the interpretation
of status ET704 Brake
switch no. 1
3ET705: Brake switch
No. 2- ACTIVE (brake pedal
released)
- INACTIVEIn the event of a fault,
consult the interpretation
of status ET705 Brake
switch no. 2
4Clutch pedal
switchET405:Clutch pedal
switch- ACTIVE
- INACTIVEIn the event of a fault,
consult the interpretation
of status ET405 Clutch
switch.
5Cruise control
setpointPR130:Cruise control
setpointIndicates the reference
values requested by the
driver (in mph (km/h))NONE
6Vehicle speedPR089:Vehicle speed0 mph (kmh)
Shows the vehicle speed in
mph (km/h). This
parameter is transmitted
by the ABS computer or
vehicle speed ECU*. This
signal is transmitted to the
injection system on the
multiplex network.Test the multiplex
network. See fault finding
for the ABS system or the
vehicle speed ECU*.

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 149V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
CRUISE CONTROL/SPEED LIMITER (continued 2)
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
7Cruise control/
speed limiter
deactivationET415:Cruise control/
speed limiter
deactivationNONE: This status is present
on the diagnostic tool when:
the computer has been
reinitialised,
The computer has been
reprogrammed.
- STATUS 1: Traction control
request
- STATUS 2: Brake pedal
depressed.
- STATUS 3: Clutch pedal
depressed.
- STATUS 4: Cancel button
pressed
- STATUS 5: Cruise control or
speed limiter monitoring.
- STATUS 6: Gear lever in
neutral (manual gearbox) or
neutral position (automatic
transmission).
- STATUS 7: Inconsistency
between the request and the
vehicle speed.
- STATUS 8: Automatic
transmission in defect mode.
- STATUS 9: Vehicle speed
monitoring.
- STATUS 10: Monitoring by
injection computer.In the event of a fault,
consult the
interpretation of status
ET415 Cruise control/
speed limiter
deactivation.

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 160V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
DRIVER PARAMETERS
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test Conditions: ENGINE AT IDLE SPEED, COOLANT TEMPERATURE > 80 ˚C.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1EnginePR055:Engine speedGives the engine speed of
rotation in rpmIn the event of a fault, refer
to the interpretation for fault
DF005 Engine speed
sensor circuit. PR190:Idle speed
setpointIndicates the engine's
rotational speed setpoint
in rpm.
2Accelerator
pedal position*PR030:Accelerator
pedal positionIndicates the accelerator
pedal position.
If no pressure is being
applied to the pedal
PR030 = 0 %In the event of a fault, refer
to the interpretation of fault
DF008 Pedal
potentiometer circuit
gang 1 or DF009 Pedal
potentiometer circuit
gang 2.
3Sensor feedPR147:Pedal
potentiometer
voltage
gang 1Accelerator pedal
released
0.70 < PR147 < 0.80 VIn the event of a fault, refer
to the interpretation of fault
DF008 Pedal
potentiometer voltage
gang 1 or DF009 Pedal
potentiometer voltage
gang 2. PR148:Pedal
potentiometer
voltage
gang 2Accelerator pedal
released
0.35 < PR088 < 0.40 V
4Brake contactET704:Brake contact
no. 1
Indicates recognition of
brake pedal contacts
INACTIVEIn the event of a fault,
consult the interpretation of
status ET704 Brake switch
no. 1.
ET705:Brake contact
no. 2In the event of a fault,
consult the interpretation for
status ET705 Brake
contact no. 2.
5Clutch pedalET405:Clutch pedal
switchIndicates recognition of
clutch pedal contacts
RELEASED (MANUAL)
or WITHOUT
(AUTOMATIC)In the event of a fault,
consult the interpretation of
status ET405 Clutch pedal
switch.
(*) Pedal voltages - cold, ignition on (average values stated for information only).
Pedal load 0 % 25 % 50 % 100 % 120 %
Gang 1 voltage 0.74 V 1.52 V 2.09 V 3.23 V 3.67 V
Gang 2 voltage 0.37 V 0.77 V 1.06 V 1.64 V 1.87 V