2011 RENAULT SCENIC check engine

1Engine and peripherals
V9 MR-372-J84-13B450$TOC.mif
V9
13B
"The repair procedures given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The procedures may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories from
which his vehicles are constructed."
V9
All rights reserved by Renault s.a.s.
Edition Anglaise
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of
Renault s.a.s.
© Renault s.a.s. 2011
DIESEL INJECTION
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48, 50, 54, 58
Fault finding – Introduction 13B - 2
Fault finding – Cleanliness guidelines 13B - 8
Fault finding – List and location of components 13B - 10
Fault finding – Role of components 13B - 12
Fault finding – Features 13B - 15
Fault finding – Defect modes 13B - 26
Fault finding – Configuration and programming 13B - 28
Fault finding – Replacement of components 13B - 29
Fault finding – Fault summary table 13B - 34
Fault finding – Interpretation of faults 13B - 40
Fault finding – Conformity check 13B - 202
Fault finding – Status summary table 13B - 203
Fault finding – Interpretation of statuses 13B - 205
Fault finding – Parameter summary table 13B - 259
Fault finding – Interpretation of parameters 13B - 263
Fault finding – Command summary table 13B - 350
Fault finding – Interpretation of commands 13B - 351
Fault finding – Customer complaints 13B - 380
Fault finding – Fault Finding Chart 13B - 381
Fault finding – Tests 13B - 404
Fault finding – Glossary 13B - 430

13B-8V9 MR-372-J84-13B450$020.mif
13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
1. HAZARDS ASSOCIATED WITH CONTAMINATION
The high pressure direct injection system is highly sensitive to contamination. The risks caused by the introduction of
contamination are:
– damage to or destruction of the high pressure injection system,
– a component seizing up,
– a component losing its sealing.
All After-Sales operations must be performed under very clean conditions. This means that no impurities (particles
a few microns in size) should have penetrated the system during dismantling.
The cleanliness guidelines must be applied from the filter through 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,
– the ambient atmosphere,
–etc.
2. INSTRUCTIONS TO BE FOLLOWED PRIOR TO ALL OPERATIONS
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 faults in the electrical connections.
IMPORTANT
Before carrying out any work 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.
DIESEL INJECTION
Fault finding – Cleanliness guidelines

13B-16V9 MR-372-J84-13B450$050.mif
DIESEL INJECTION
Fault finding – Features13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
The high pressure pump is supplied at low pressure by an integrated low pressure pump (transfer pump).
It supplies the rail, the pressure of which is controlled by the fuel flow actuator (MPROP) for charging, and for
discharging by the injector valves. This compensates for pressure drops. The flow actuator allows the high pressure
pump to supply the exact quantity of diesel fuel required to maintain the pressure in the rail. This component
minimises the heat generated and improves engine output. In order to discharge the rail using the injector valves,
the valves are controlled by brief electrical pulses which are:
– short enough not to open the injector (passing through the feedback circuit from the injectors),
– long enough to open the valves and discharge the rail.
Some vehicles have a presence sensor mounted in the filter for detecting water in the diesel. If there is water in the
diesel fuel, the orange “Injection and pre-post heating” warning light will come on.
The system can inject diesel fuel into the engine at a pressure of up to 1600 bar. Before each operation, check that
the injector rail is depressurised and that the fuel temperature is not too high.
You must respect the cleanliness guidelines and safety advice specified in this document for any work on the high
pressure injection system.
Removal of the internal parts of the pump and injectors is prohibited. Only the fuel flow regulator/actuator, diesel fuel
temperature sensor and the venturi can be replaced.
For safety reasons, it is strictly prohibited to undo a high pressure pipe union when the engine is running.
It is not possible to remove the pressure sensor from the fuel rail because this may cause circuit contamination
faults. If the pressure sensor is defective, replace the pressure sensor, rail and high pressure pipes associated with
the rail.
Supplying + 12 V directly to any component in the system is prohibited.
Ultrasonic decoking and cleaning are prohibited.
Never start the engine unless the battery is connected correctly.
Disconnect the injection computer when carrying out any welding work on the vehicle. WARNING
The engine must not operate with:
– Diesel fuel containing more than 10% diester,
– petrol, even in tiny quantities.

13B-17V9 MR-372-J84-13B450$050.mif
DIESEL INJECTION
Fault finding – Features13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
a. The computer:
Determines the value of injection pressure necessary for the engine to operate correctly and then controls the
pressure regulator.
Checks that the pressure value is correct by analysing the value transmitted by the pressure sensor located on the
rail.
It determines the injection timing required to deliver the right quantity of diesel fuel and the moment when injection
should start. Controls each injector electrically and individually after determining these two values.
The flow injected into the engine is determined by:
– the duration of injector control,
– the rail pressure (regulated by the computer),
– the injector opening and closing speed,
– the needle stroke (determined by a constant for the type of injector),
– the nominal hydraulic flow of the injector (specific to each injector).
The computer manages:
– idling regulation,
– exhaust gas flow reinjection to the inlet (EGR),
– fuel supply check (advance, flow and rail pressure),
– the fan assembly control,
– the air conditioning (cold loop function),
– the cruise control/speed limiter function,
– pre-post heating control,
– indicator lights control via the multiplex network,
– the catalysed particle filter operation (F9Q816 engine only).

13B-23V9 MR-372-J84-13B450$050.mif
DIESEL INJECTION
Fault finding – Features13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Orange pre-postheating warning light
This warning light is used as an in-operation indicator lamp:
– Continuously lit under + after ignition feed: indicates preheating of the heater plugs.
It goes out when preheating is complete and the engine is able to start.
Orange "SERVICE" non-critical fault warning light (level 1)
This warning light is used to indicate a fault in the system:
– Continuously lit with the CHECK INJECTION message:
Indicates a level 1 fault (involving operation of the injection system in defect mode).
The driver should have the repairs carried out as soon as possible.
Temperature/red emergency STOP (level 2) warning light
This indicator light is used both as an in-operation indicator light and as a system fault warning light.
– Intermittently lit with the ENGINE OVERHEATING message:
Indicates that the coolant temperature is too high (the driver is free to stop the vehicle or not).
– Continuously lit with the INJECTION FAULT: STOP THE ENGINE message and an audible beep indicates a level
2 fault.
In that case, the vehicle must be stopped immediately (when traffic conditions allow).
The driver should carry out repairs as soon as possible.
European On Board Diagnostic excess pollution ORANGE warning light
Engine symbol with the CHECK EMISSION CONTROL message.
This warning light comes on if the system has one or more OBD faults.
This warning light is used to alert the driver to injection faults that could lead to excessive pollution, or if the EOBD
system (European On Board Diagnostic) has been deactivated.
The injection computer requests illumination of the OBD warning light for a present fault only after three successive
driving cycles.
The driver should have the repairs carried out as soon as possible.

13B-26V9 MR-372-J84-13B450$060.mif
13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
No.
Defect
modesCause of fault Customer perception
Engine stop– Flow regulator short circuit to earth (flow regulator closed).
– High pressure circuit leak (min. rail pressure).
– Injector jammed open.
– Loss of engine speed signal.
– Sensor feed No.No. 3 fault.
– Engine management computer internal fault.
– Injector row 1 and 2 fault.
– Solenoid control stage cut-off fault caused by computer
initialisation (to check that cut-off is operational).Engine stop
Level 2 on
Limited torque– Rail pressure sensor fault.
– Pedal sensor gangs 1 and 2 double fault (including sensor feeds
1 and 2).
– Open circuit, short circuit to earth and turbocharger solenoid valve
short circuit to + 12 V.
– Turbocharger pressure sensor fault (sensor signal short circuit
with sensor feed, sensor signal short circuit to +12volts, sensor
open circuit to earth, sensor signal short circuit to earth, sensor
feed open circuit, sensor signal open circuit, significant line
resistance on sensor feed, significant line resistance on sensor
signal, significant line resistance on sensor earth, significant
pressure difference measured between the atmospheric pressure
sensor and the turbocharger pressure sensor at idle speed).
– Injector codes fault.
– Computer internal fault.
– Solenoid control stage cut-off fault caused by computer
initialisation (to check that cut-off is operational).
– Sensor feed 1, 2 and 3 fault.
– Vehicle speed fault.Speed limited
to≈1750 rpm
Loss of engine torque
Flow/injected
quantity
limited– Flow regulator open circuit or short circuit to + 12 volts
(Flow regulator open).
– Positive rail pressure loop difference (measurement < setpoint).
– Negative rail pressure loop difference (measurement > setpoint).
– Max. rail pressure (flow regulator jammed in open position).Limited performance
Pedal limp
home– Pedal sensor gangs 1 and 2 double fault (including sensor feeds
1 and 2).
– Activation of pedal safety programming.
– Accelerator pedal mechanism jammed.Speed limited to
45-48 mph (75-80 km/h)
DIESEL INJECTION
Fault finding – Defect modes

13B-31V9 MR-372-J84-13B450$080.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
REPLACING THE INJECTORS
After one or more injectors have been replaced, enter the IMA codes again and then run command SC036
Reinitialise programming.
The system must be configured via the diagnostic socket using the RENAULT CLIP diagnostic tool.
PROCEDURE to be followed after replacing one or more injectors:
– Note the "IMA" code(s) engraved on the injector bodies,
– enter these codes in the computer using command SC002 Enter injector codes, then follow the instructions given
by the diagnostic tool,
– once the command has finished,
–switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes) Communication
lost with computer: EDC16 C36, check the tool connection and computer power supply before switching the
ignition back on.
– Return to fault finding mode.
– select the Identify computer function from the main screen.
– check that the injector codes entered into the computer match those found on the bodies of the injectors:
– If the codes do not match, restart the command SC002 Enter injector codes procedure.
– If the codes correspond, run command SC036 Reinitialise programming,
–select Injectors as the type of operation, then follow the instructions given by the diagnostic tool.
– Then check the system faults, and clear any stored faults.
– if there are faults, deal with the present faults,
– clear the faults from the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
End of the procedure.Note:
The IMA coding (individual injector correction) is a calibration made in production on each injector to adjust
the flow accurately.
These correction values are etched onto the Bakelite body of each injector (7 alphanumeric characters) and then
entered into the computer which then controls each injector taking into account its individual manufacturing
variation.
IMPORTANT
Cylinder no. 1 is located on the engine flywheel end.
IMPORTANT
Engines can only operate correctly if the correct IMA codes have been entered.
If no code has been entered, or if an implausible code has been entered, fault DF276 "Injector Code
Programming" will be present, and the engine will be in defect mode (engine speed is reduced
significantly).
If another injector's code has been entered, the system will accept it but will make the wrong correction.
This could lead to engine damage, loss of performance and excessive pollution.
Always use the correct injector codes for the engine cylinder/computer.

13B-33V9 MR-372-J84-13B450$080.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
REPLACING THE DAMPER VALVE
After replacing the damper valve, reconfigure the computer.
The system must be configured via the diagnostic socket using the RENAULT CLIP tool.
PROCEDURE to be followed after replacing the damper valve:
– Switch on the ignition.
– establish dialogue with the injection computer,
– run command SC036 Reinitialise programming,
–select Damper valve as the type of operation, then follow the instructions given by the diagnostic tool,
– switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes) Communication lost
with computer: EDC16 C36, check the tool connection and computer power supply before switching the
ignition back on.
– Check that PR420 Damper valve error counter = 0,
– then check the system faults, and clear any stored faults,
– if there are faults, deal with the present faults,
– clear the faults from the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
REPLACEMENT OF THE PARTICLE FILTER (F9Q816 engine only).
After replacing the particle filter, reconfigure the computer.
The system must be configured using the RENAULT CLIP tool.
PROCEDURE to be followed after replacing the particle filter:
– Switch on the ignition.
– establish dialogue with the injection computer,
– run command SC036 Reinitialise programming,
–select After particle filter replacement as the operation type, then follow the instructions given by the diagnostic
tool,
–switch off the ignition,
– wait for the diagnostic tool message (maximum time 8 minutes) Communication lost with computer:
EDC16C36, check the tool connection and computer power supply before switching the ignition back on,
– clear the faults from the computer memory (this operation must be carried out within 3 minutes of the ignition being
switched on).
– Check the weight of the soot: PR383 Weight of soot in the particle filter.
– If PR383
≥ 1 g. Apply the procedure of test 12 Manual clearing of the soot weight.
Carry out a road test followed by another check with the diagnostic tool.