2012 RENAULT SCENIC replacing the computer

13B-7V12 MR-372-J84-13B300$010.mif
DIESEL INJECTION
Fault finding – Introduction13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
5. FAULT FINDING LOG
You will always be asked for this log:
• when requesting technical assistance from the Techline,
• when requesting approval before replacing parts for which approval is compulsory,
• to be attached to monitored parts for which reimbursement is requested. The log is needed for warranty
reimbursement, and enables better analysis of the parts removed.
6. SAFETY INSTRUCTIONS
Safety rules must be observed during any work on a component to prevent any material damage or personal injury:
– check the battery voltage to avoid incorrect operation of computer functions,
– use the proper tools.IMPORTANTIMPORTANT
All faults involving a complex system call for thorough diagnostics with the appropriate tools.
The FAULT FINDING LOG, which should be completed during the fault finding procedure,
ensures a record is kept of the procedure carried out. It is an essential document when
consulting the manufacturer.
IT IS THEREFORE ESSENTIAL THAT THE FAULT FINDING LOG IS FILLED OUT EVERY TIME IT IS
REQUESTED BY TECHLINE OR THE WARRANTY RETURNS DEPARTMENT.

13B-17V12 MR-372-J84-13B300$030.mif
DIESEL INJECTION
Fault finding – System operation13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
The potentiometer serves to control and run fault finding on the valve. The very first time the engine is started, then
each subsequent engine start, the "valve closed" position is programmed (offset). This value is compared to the very
first offset or last programmed offset, for the purposes of fault finding. It is also used to readjust the valve control
function. It is therefore important to associate the EGR valve with the computer that controls it.
Important: the EGR valve offsets must be reinitialised when replacing the valve or reprogramming/replacing
the computer.
V - Catalysed particle filter management (only for Vdiag: 18, 1C, 54, 20, 58, 5C, 24, 28 and 62).
The particle filter prevents the escape of carbon particles emitted by the engine but not yet removed from the
exhaust gases.
The particle filter is a microporous structure containing channels in order to force filter the exhaust gas.
The exhaust pipe consists of several components:
– an oxidation catalytic converter mounted after the turbocharger. This catalytic converter ensures that HC/CO levels
meet current standards by generating the heat (rise in exhaust temperature caused by catalysis) required for
particle filter regeneration,
– a catalysed particle filter located under the bodywork,
– a differential pressure sensor to tell the computer the pressure upstream and downstream of the particle filter,
– a particle filter upstream and downstream temperature sensor,
– a turbine upstream temperature sensor (TAVT).
As the vehicle is driven, the particle filter is loaded with particles (soot). Using a given weight of soot determined via
mapping in the computer, regeneration mode can be triggered if the maximum weight of soot in the particle filter is
reached and all engine operating conditions are met (coolant temperature, etc.).
Particle filter regeneration consists of burning the particles of soot accumulated in the filter.
The differential pressure sensor measures the particle filter inlet/outlet pressure differential; this measurement is
used to estimate the weight of soot present in the particle filter by mapping in the computer:
(weight of soot = pressure differential as a function of exhaust volume flow rate).
If all the criteria are met, the computer enters regeneration mode. The injection programming is then adjusted in
order to raise the target exhaust gas temperature to between 550 and 650°C.
This temperature allows the particles accumulated in the filter to be partially or completely burnt (regeneration).
Regeneration efficiency depends on the particle filter inlet temperature and the time spent in regeneration mode.
Regeneration can be performed automatically while driving if:
–the soot weight is less than the threshold for DF308 Clogged particle filter
–the number of regeneration failures while driving is less than the threshold for DF311 Failed regenerations
limit exceeded.

13B-18V12 MR-372-J84-13B300$030.mif
DIESEL INJECTION
Fault finding – System operation13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
VI - Pre-postheating actuation
Pre/postheating control involves actuating the heater plugs and the preheating indicator light on the instrument
panel (multiplex signal).
The heater plugs are actuated by a static relay.
After the ignition is switched on, a preheating delay is activated. The length of time that the warning light is lit
depends on the coolant temperature, air temperature, atmospheric pressure and battery voltage. When the coolant
temperature is below a certain threshold, a postheating function can be used to improve the combustion stability,
and consequently engine operation (reducing unburnt particles and pollutant emissions). Postheating can last up
to5 minutes.
IMPORTANT:
There are two types of heater plug: SLOW and FAST:
SLOW plugs are identified by a black ring.
FAST plugs are identified by a white ring.
The heater plugs fitted on the vehicle must be replaced with plugs of the same type; otherwise there is
a risk of the heater plugs deteriorating which could lead to engine destruction.
Only Vdiag 20, 24, 38 and 74:
when replacing heater plugs with plugs which differ from those currently fitted on the vehicle (replacement of
SLOW plugs with FAST plugs), the computer must be configured (see Replacement of components, Replacing
heater plugs) by running command SC036 Reinitialise programming and selecting Heater plugs if this choice
is available, then following the procedure.

13B-20V12 MR-372-J84-13B300$030.mif
DIESEL INJECTION
Fault finding – System operation13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
EOBD management (European On Board Diagnostic):
The EOBD system enables the detection of any faults relating to the vehicle emission control system
(EOBD EURO IV emission control standards exceeded).
This system should be active for the entire life of the vehicle.
1. Conditions for an EOBD fault appearing
An EOBD fault will be detected after 3 driving cycles.
It allows the driver to know whether the vehicle has a fault directly linked to the emission control system.
2. System faults displayed by the EOBD
Only a few faults are indicated by the EOBD system:
– DF002 Air temperature sensor circuit.
– DF004 Turbocharging pressure sensor circuit.
– DF011 Sensor feed voltage no. 1.
– DF012 Sensor feed voltage no. 2.
– DF013 Sensor feed voltage no. 3.
– DF026 Cylinder 1 injector control circuit.
– DF027 Cylinder 2 injector control circuit.
– DF028 Cylinder 3 injector control circuit.
– DF029 Cylinder 4 injector control circuit.
– DF054 Turbocharging solenoid valve control circuit.
– DF056 Air flow sensor circuit.
– DF107 Computer memory.
– DF200 Atmospheric pressure sensor.
– DF209 EGR position sensor circuit.
– DF272 EGR valve control circuit.
– DF569 Turbocharging circuit.
Some repair operations require programming to ensure that certain engine components function correctly.
Follow the programming procedures (see Replacement of components), if replacing the exhaust gas
recirculation valve or an injector.
3. Conditions for clearing an EOBD fault
An EOBD fault is cleared in several phases.
The fault present in the diagnostic tool will only be stored (following repair) after the vehicle has been driven
3times.
The EOBD warning light will only go out after these 3 driving cycles.
The instrument panel warning light coming on does not automatically mean that the system has a fault.
In order for the EOBD fault and display parameters to be cleared from the computer, the system must go
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 EOBD fault will still be present or stored in the injection
computer.

13B-22V12 MR-372-J84-13B300$050.mif
13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
COMPUTER REPLACEMENT OR REPROGRAMMING
Two operations must be performed when replacing or reprogramming the computer:
SC003 Save computer data and SC001 Enter saved data.
–Run SC003 before replacing or reprogramming the computer. This enables certain data to be saved in the
diagnostic tool so that the new computer* can be reconfigured like the old one. The saved data includes: injector
codes, EGR programming, specific data for particle filter operation and vehicle options.
–Run SC001 after replacing or reprogramming the computer. It enables you to rewrite the data (saved by
command SC003) to the new computer*.
Only Vdiag 20, 24, 38 and 74:
–Run SC036 Reinitialise programming and select Heater plugs (see Interpretation of commands); this will allow
you to configure the correct type of heater plugs fitted on the vehicle, if necessary.
If you cannot establish dialogue with the computer being replaced: you will not be able to save anything. After
replacing the computer:
– Write the IMA codes for each injector manually by reading the code on each injector; run command SC002 Enter
injector codes.
– Check the exhaust pipe for leaks or blockage. Repair if necessary.
– Perform an After-Sales regeneration, follow the procedure for command SC017 Particle filter regeneration (see
Interpretation of commands).
– It is essential to change the engine oil and oil filter.
– Enter the data specific to particle filter operation by running SC036 Reinitialise programming and selecting after
replacing injection computer with no save option.
– Enter the VIN into the computer, use command VP010 Enter VIN.
–Only for Vdiag 20, 24, 38 and 74: Configure the type of heater plugs fitted on the vehicle by running SC036
Reinitialise programming and selecting Heater plugs (see Interpretation of commands).
Exhaust gas recirculation valve data is programmed automatically the 1st time the new computer is turned on*.
* New computer or reprogrammed computer.
IMA*: Individual injector correctionOperations to be carried out before the injection computer is reprogrammed:
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.
The procedure for resetting the function is as follows:
Vehicle ignition on.
• Position the cruise control/speed limiter switch in the rest position (the computer detects the rest position at that
moment).
• Position the cruise control/speed limiter switch in the Cruise control position to activate the cruise control
function.
• Position the cruise control/speed limiter switch in the Speed limiter position to activate the speed limiter function.
DIESEL INJECTION
Fault finding – Replacement of components

13B-23V12 MR-372-J84-13B300$050.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
PROCEDURE
• Before replacing or reprogramming the computer:
–Select SC003 Save computer data,
– if the following message appears: there is a saved file; do you want to overwrite this data?: (this file
corresponds to the last save carried out on the tool)
–Select YES,
When the save has been performed, replace the computer or carry out the programming then proceed to the next
step.
• After replacing or reprogramming the computer:
Select SC001 Write saved data.
Follow the instructions,
– When the command is finished, switch off the ignition, wait for the message to appear on the diagnostic tool
(maximum time 8 minutes): Loss of dialogue with the computer: EDC16 CP33, check the connection of the
tool and the computer supply.
– Switch on the ignition again and use command VP010 Enter VIN if the VIN has been cleared.
–Only Vdiag 20, 24, 38 and 74: Establish communication and run SC036 Reinitialise programming and select
Heater plugs (see Interpretation of commands), this will allow you to configure the correct type of heater plugs
fitted on the vehicle, if necessary.
– For all Vdiags, clear the fault memory.
– End of procedure.

13B-24V12 MR-372-J84-13B300$050.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
REPLACING THE EXHAUST GAS RECIRCULATION (EGR) VALVE
After the exhaust gas recirculation valve has been replaced, the computer must store the new valve offset, and the
offset measured when the ignition was last switched off (in power latch phase), which corresponds to the valve
closing.
Using this data, the computer can detect whether the valve is clogged or seized.
When the valve is replaced, clear the stored offsets so that the program uses the new valve’s offset value.
The data associated with this program is compiled in the Emission control / EOBD (European On Board
Diagnostic) sub-function.
–PR128: FIRST EGR VALVE OFFSET.
–PR129: LAST EGR VALVE OFFSET > or = PR128 if the valve is new.
Programming PR128 and PR129 must be cleared every time the exhaust gas recirculation valve is replaced.
PROCEDURE to be followed after replacing the exhaust gas recirculation valve:
- Run command SC036 Reinitialise programming.
- Select EGR valve as the operation type, then follow the instructions given by the diagnostic tool.
• When the command is finished,
–switch off the ignition,
– wait for the diagnostic tool message (maximum wait 8 minutes): Loss of dialogue with the computer: EDC16
CP33, check the tool connection and the computer supply.
The new EGR valve offset is automatically reprogrammed the next time the ignition is switched on.
– start the vehicle to enable the latest EGR valve offset to be programmed,
– switch off the ignition,
– wait for the diagnostic tool message (maximum wait 8 minutes): Loss of dialogue with the computer: EDC16
CP33, check the tool connection and the computer supply before switching the ignition back on.
The last EGR valve offset reprogrammed is stored on the computer.
– 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:
When reinitialisation is complete, the Emission control / EOBD sub-function displays: PR128 = PR129 = 0%
Note:
When the new EGR valve offset has been reprogrammed, the Emission control / EOBD sub-function will display:
10% < PR128 < 40%
PR129 = 0%
Note:
When the last EGR valve offset has been reprogrammed, the Emission control / EOBD sub-function will display:
10% < PR128 < 40%,
10% < PR129 < 40%

13B-25V12 MR-372-J84-13B300$050.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
REPLACING THE INJECTORS
After one or more injectors have been replaced, enter the IMA codes again and then run command SC036
Reinitialise programming.
To do this, record 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. Run command
SC036 Reinitialise programming and select injectors, then follow the procedure. Note:
The "IMA" code (individual injector correction) is a calibration with corrective values unique to each injector,
and is used to adjust their flow accurately (injector classification). This correction takes into account mechanical
variances and the variances of the piezo actuator. An injector's class is determined by measurements taken at
different pressures on a test bench. The IMA class identification (7-character alphanumeric code) is then
engraved on the collar of the injector.
The IMA codes must be read from left to right:
– Foolproofing for reading the IMA codes is carried out using the low pressure return connector and/or the
electrical connector on the injector.
– This reading direction is valid when these connectors are located to the left of the cotech.
The IMA codes are read from left to right (see illustration in MR 402 (Vel Satis ph2), MR 395 (Laguna II ph2),
MR 364 (Mégane II ph2), MR 370 (Scénic II ph2), MR 405 (Espace IV ph2) Mechanical, 13B Diesel injection,
Diesel injector, Removal – Refitting)
Note: When entering characters, confusion can arise between:
– Figure 1 and the letters I and L,
– Figure 2 and the letter Z,
– Figure 5 and the letter S,
– Figure 6 and the letter G,
– Figure 8 and the letter B.
After programming or reprogramming the computer, it is essential to enter the 4 injector codes before confirming
the entry.
These individual corrective values are then written to the computer EEPROM, which can then control the injectors,
taking into account their manufacturing variation.
IMPORTANT:
Engines can only operate correctly if the correct IMA* codes have been entered. If no code has been
entered, or if an invalid code has been entered, fault DF066 Injector code(s) is present and the engine will
run in defect mode (engine speed limited 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.
Note:
On the M9R engine (Renault - Nissan partnership engine), cylinder no. 1 is located at the timing end.