2011 RENAULT SCENIC engine

13B - 13
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
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
When activated, the cruise control function maintains the vehicle at a preselected speed, regardless of the driving
conditions encountered.
If the driver wishes to exceed the cruising speed, they may:
– depress the accelerator pedal and exceed the cruising speed (the vehicle will return to the initial
cruising speed once the driver takes their 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.
It is possible to reactivate the vehicle speed control and resume the last cruising speed after deactivation (computer
supply not cut off).
The vehicle speed limiter function enables, when it is active (switch turned on), the vehicle speed to be limited to
a preselected value. The driver controls the vehicle in the normal way using the accelerator pedal until the limit
speed is reached.
If the driver wishes to exceed the cruising speed, they 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:
– by using 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.

13B - 14
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
c) Warning light management
Instrument panel display
The computer manages the data display on the instrument panel relating to engine operation. This involves
5 functions:
– the OBD warning light (European On Board Diagnostic),
– pre/postheating warning light,
– the coolant temperature warning light,
– the fault level 1 warning light (non-critical fault),
– the fault level 2 warning light (stop immediately).
These five functions are represented by 3 warning lights or messages sent by the trip computer.
Pre/postheating indicator light
This warning light is used both as an in operation indicator light and as a system fault indicator:
– continuously lit under + after ignition feed: indicates that the heater plugs are operating,
– continuously lit with injection faulty: indicates a level 1 fault (involves injection system operating in defect
mode. The user must carry out repairs as soon as possible).
Temperature/emergency stop warning light
This indicator light is used both as an in-operation indicator light and as a system fault warning light. It lights up for
3 seconds after the ignition is switched on (automatic test procedure managed by the instrument panel).
– continuously lit: indicates engine overheating (the driver remains free to stop the vehicle or not),
– continuously lit, with the Engine stop message: indicates a level 2 fault (In this case injection is
automatically shut off after a few seconds).
Excess pollution OBD orange warning light
An engine symbol lights up for approximately 3 seconds when the engine is switched on.
For the Vdiag 44 and 48, it only lights up when the engine is running.
In Vdiag 4C, this warning light comes on if the system has one or more OBD faults.

13B - 15
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
d) OBD management
The OBD (On Board Diagnostic) system enables detection of any faults relating to the vehicle emission control
system (OBD EURO IV emission control standards exceeded).
This system should be active for the entire life of the vehicle.
1. Conditions causing an OBD fault
An OBD fault will be detected after 3 operating cycles, and the following parameters will be saved in the calculator:
– engine load,
– vehicle speed,
– air temperature,
– coolant temperature,
– turbocharging pressure,
– rail pressure,
–air flow,
– vehicle mileage.
It allows the driver to know whether their vehicle has a fault directly linked to the emission control system.
2. System faults indicated by the OBD
Only a few faults are indicated by the OBD system:
–DF012 Sensor supply voltage no. 2.
–DF038 Computer.
–DF040 Cylinder 1 injector circuit.
–DF041 Cylinder 2 injector circuit.
–DF042 Cylinder 3 injector circuit.
–DF043 Cylinder 4 injector circuit.
–DF209 EGR valve position sensor circuit.
–DF272 EGR valve control circuit.
–DF621 EGR valve jammed open.
Some repair operations require programming to ensure that certain engine components function correctly.
Follow the programming procedures (described in the component replacement section), if replacing an
exhaust gas recirculation valve or an injector.

13B - 16
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
3. Conditions for clearing an OBD fault
An OBD fault is cleared in several steps.
The fault present in the diagnostic tool is not stored (following repair) until after 3 trips with the vehicle.
The OBD warning light will only light up after these 3 driving cycles.
The warning light coming on does not always mean that there is a fault on the system.
In order that the OBD fault and the display parameters are cleared from the computer, the system goes
through 40 engine heating cycles.
An engine heating cycle is a driving cycle during which:
–the engine coolant temperature reaches at least 71.1 °C,
–the engine coolant temperature varies by 22.2 °C in relation to the engine starting temperature.
If one of these conditions is not fulfilled, the OBD fault will still be present or stored in the injection
computer.

13B - 20
DIESEL INJECTION
Fault finding - Replacement of components13B
V10 MR-372-J84-13B150$188.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Replacement of components
COMPUTER REPLACEMENT OR REPROGRAMMING OPERATIONS
The system can be programmed or reprogrammed via the diagnostic socket using the RENAULT CLIP diagnostic
tool (see Technical Note 3585A).
While the computer is being reprogrammed the engine fan assemblies are automatically triggered).
Operations to be carried out before reprogramming the injection computer:
Before reprogramming the injection computer, move the main Cruise control/Speed limiter switch to the rest position.
The information about the cruise control or the speed limiter displayed on the instrument panel disappears.
Otherwise, if the main switch remains in the cruise control or speed limiter position during and after reprogramming,
the Cruise control/Speed limiter function will not be operational.
To reset the function, proceed as follows:
Vehicle ignition on.
– Position the main switch in rest position (the computer then detects the rest position).
– Position the switch in Cruise control position to activate the Cruise control function.
– Position the switch in Speed limiter position to activate the Speed Limiter function.
Before reprogramming or replacing the computer in After-Sales operations, backup the following data to the
diagnostic tool:
– The IMA codes (individual correction of the injector).
– The engine adaptives (engine speed, and options available on the vehicle).
(this file corresponds to the last save carried out on the tool)
select YES,
When the backup is complete, replace the computer or reprogram, then proceed to the next step,
with command SC003 Backup computer data. IMPORTANT
–Switch on the diagnostic tool (mains or cigarette lighter feed).
–Connect a battery charger.
–Switch off all electrical consumers (lights, interior lights, air conditioning, radio/CD, etc.).
–Wait for the engine to cool (engine coolant temperature below 60 °C and air temperature below 50 °C).
WARNING
A computer without the IMA option can be replaced by a computer with this option. The codes have
therefore not been backed up during command SC003.
In this case, status ET104 "Injector code use" becomes "YES" or "FAULTY", fault DF276 "Injector code
programming" is present, and the engine operates in defect mode.
In this case, run command SC002 Enter injector codes, applying the procedure described in the
interpretation of this command.
MR-372-J84-13B150$188.mif

13B - 21
DIESEL INJECTION
Fault finding - Replacement of components13B
V10 MR-372-J84-13B150$188.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
After programming, reprogramming or replacing the computer:
–switch the ignition off and then on again,
–start and then stop the engine (to initialise the computer) and wait for 30 seconds,
–use the diagnostic tool to carry out the following procedures:
– run command SC001 Enter saved data, to re-establish the injector codes and engine adaptives,
– run command VP010 Enter VIN,
– deal with any faults declared by the diagnostic tool. Clear the computer memory.
– carry out a road test followed by another check with the diagnostic tool.
Note:
If commands SC001 and SC003, have been forgotten or do not work after replacing or (re)programming the
computer, enter the IMA codes for each injector manually by reading the code on each injector (see Replacement
of injectors).
IMPORTANT
– the injection computer retains the immobiliser code for life,
– the system has no security code,
– it is prohibited to perform tests with computers borrowed from the Parts Department or from another vehicle
which must then be returned,
– these computers are hard-coded,
– if the injection computer appears to be faulty, contact the Techline and refer to the fault finding log.

13B - 22
DIESEL INJECTION
Fault finding - Replacement of components13B
V10 MR-372-J84-13B150$188.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
REPLACING THE INJECTORS
When one or more injectors are replaced, the IMA parameters of the injector output concerned must be modified.
The system can be configured with the diagnostic socket using the RENAULT CLIP diagnostic tool.
To do this, display the IMA code(s) etched on the injector bodies, and enter the codes into the computer using
command SC002 Enter injector codes, and follow the instructions given by the diagnostic tool.
REPLACING THE EXHAUST GAS RECIRCULATION VALVE
When replacing the exhaust gas recirculation valve, enter the operational values of the new valve into the computer.
After replacing the exhaust gas recirculation valve, select Clear mode on the diagnostic tool.
Run command RZ002 EGR adaptives.
When the command is completed, switch off the ignition and exit fault finding mode.
–wait 30 seconds, and switch on the ignition again,
– clear any faults,
– start the engine,
– let the engine idle for 1 min, accelerate to 2500 rpm for 5 s, and return to idle speed,
– repeat this procedure 5 times.
Check the faults:
If the fault does not recur, end of fault finding procedure.
If the fault recurs, restart the procedure after disconnecting and reconnecting the valve.
If the fault is still present, replace the EGR valve. 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 on the Bakelite body of each injector (6 alphanumeric characters) and then
entered into the computer which then controls each injector taking into account their manufacturing variation.
IMPORTANT
When the command is complete, switch off the ignition and exit fault finding mode.
Wait 30 seconds.
Return to fault finding mode.
Select the Identify computer function from the main screen.
Check that the injector codes entered into the computer correspond to those on the injector bodies.
If the codes do not match, restart the command SC002 Enter injector codes procedure.
Then check the system faults, and clear any stored faults.
If the computer does not have any faults, the operation is complete.
If there are faults, deal with the present faults.

13B - 23
DIESEL INJECTION
Fault finding - Fault summary table13B
V10 MR-372-J84-13B150$235.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Fault summary table
WARNING LIGHT MANAGEMENT
Management of instrument panel warning lights according to the faults notified.
Tool
fault
Associated
DTCDiagnostic tool titleLevel 1 fault
warning light
(Orange heater
plugs “on”
indicator light)Level 2 fault
warning light (Red
overheating
warning light)No fault
warning
light litOBD
warning
light lit
DF001 115Coolant temperature sensor
circuitCO.1/CC.0 ... ... ...
DF003 105Atmospheric pressure sensor
circuit1.DEF / 2.DEF /
3.DEF... ... ...
DF004 235Turbocharging pressure sensor
circuitCO.0 / CC.1 ... 1.DEF ...
DF005 335Engine speed sensor circuit ... ... 1.DEF/2.DEF ...
DF007 190Rail pressure sensor circuit CO.1 / 1.DEF /
2.DEFCC.0 ...
DF008 225Pedal potentiometer circuit
gang 1CO.0/CC.1/
1.DEF/2.DEF... ... ...
DF009 2120Pedal potentiometer circuit
gang 2CO.0/CC.1/
1.DEF... ... ...
DF011 641Sensor feed voltage no. 1 1.DEF/2.DEF ... ... ...
DF012 651Sensor feed voltage no. 2 1.DEF/2.DEF ... ... 1.DEF/
2.DEF
DF013 697Sensor feed voltage no. 3 ... 1.DEF/2.DEF ... ...
DF015 685Main relay control circuit ... ... 1.DEF/2.DEF ...
DF017 380Pre-postheating unit control
circuitCC.0 ... CC.1/CO/
1.DEF...
DF025 670Preheating unit diagnostic line ... X ...
DF037 C167Engine immobiliser ... X ...
DF038 606Computer 5.DEF / 13.DEF 1.DEF / 2.DEF /
3.DEF / 4.DEF /
6.DEF / 7.DEF /
8.DEF / 9.DEF /
10.DEF / 11.DEF /
12.DEF... 5.DEF
DF039 110Inlet air temperature sensor
circuit... ... CC.0/CO.1/
1.DEF...
MR-372-J84-13B150$235.mif