oil reset RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16C36 Workshop Manual

13B-20V9 MR-372-J84-13B450$050.mif
DIESEL INJECTION
Fault finding – Features13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Exhaust gas recirculation management:
The EGR (Exhaust Gas Recirculation) system involves removing exhaust gases and reintroducing them into the
inlet.
The exhaust gases are collected in the exhaust manifold (before the turbocharger), then directed to the EGR cooler
and the EGR valve.
EGR cooler
The EGR cooler bypass function cools the gases extracted from the exhaust via a gas-water exchanger and then
reintroduces the gases at the inlet. This cooler is equipped with an all-or-nothing solenoid valve, which enables
gases to be cooled or not cooled, depending on the emission control requirements.
EGR valve
The system comprises a direct current EGR valve and a potentiometer which reports the position of the valve.
A positive command controls its opening (0 → 100%).
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. This is why it is important to associate the EGR
valve to the computer which controls it.
Richness ratio sensor management (only on certain F9Q816 engines in VDiag 48):
The richness ratio sensor is mounted in the turbo outlet.
Its function is to reset the injection system drift.
The injection computer does not control the sensor immediately when the engine has just been started:
–ET300 Richness regulation is INACTIVE,
–PR779 Richness ratio sensor is equal to 1.
After a length of time that depends on the coolant temperature, with the engine running and in the absence of no
load conditions, the injection computer authorises the heating of the sensor:
–ET300 Richness regulation changes to ACTIVE,
– in about ten seconds, the PR778 Richness ratio sensor temperature increases to approximately 780°C,
– then the PR779 Richness ratio sensor displays a value of 0.3 ±0.1 at idle speed.
The turbocharger cooling pump:
Because of its high rotation speed, the turbocharger does not use ball bearings to ensure the pivot connection but
uses a bearing whose friction is reduced thanks to a pressurised film of oil.
When the engine is switched off, the oil is no longer under pressure and no longer provides the pivot connection. A
quantity of oil therefore remains, which collects around the bearing.
When the turbocharger is in operation, the bearing is subjected to high temperatures. After the engine is switched
off, the slow decrease in temperature heats the stagnant oil. This then modifies the viscosity of the oil and therefore
increases the risk of the turbocharger sticking.
To prevent this, a turbocharger coolant pump circulates coolant to lower the temperature of the turbocharger. It is
electrically activated for 5 mins if the engine coolant temperature exceeds 80°C. In addition, the coolant circulation
prevents deterioration of the liquid properties by stopping it collecting under the same temperature constraints as the
oil.

13B-29V9 MR-372-J84-13B450$080.mif
13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
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 Save computer data 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
are: injector codes, EGR programming, vehicle options.
–Run SC001 Enter saved data after replacing or reprogramming the computer. This enables the data (saved by
the command SC003 Save computer data) to be rewritten in the new computer*.
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 of each injector manually using command SC002 Enter injector
codes by reading the code on each injector (see Replacing the injectors).
Only on F9Q816 engines:
– Enter the data specific to particle filter operation by running SC036 Reinitialise programming and selecting after
replacing injection computer with no save option.
Exhaust gas recirculation valve data is programmed automatically the 1st time the new computer is turned on*.
* New computer or reprogrammed computer.
Specific to the cruise control/speed limiter operation to be carried out before reprogramming of the 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.
The procedure for resetting the function is 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. IMPORTANT
– Switch on the diagnostic tool (mains or cigarette lighter supply).
– Connect a battery charger.
– Cut off all the electrical consumers (lights, interior lighting, air conditioning, radio CD, etc.).
– Wait for the engine to cool (engine coolant temperature < 60° and air temperature < 50°).
– During (re)programming, the instrument panel screen displays "Oil pressure fault".
Ignore this message and do not take any action in connection with it.
DIESEL INJECTION
Fault finding – Replacement of components

13B-201
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check using the diagnostic tool.
V9 MR-372-J84-13B450$104.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
*ADAC: Trip Computer
DF1020
PRESENT
OR
STOREDENGINE OIL DILUTION
1. DEF: Above maximum threshold
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the engine is started.
– a road test.
Special notes:
If the fault is present:
– particle filter regeneration is inhibited.
Use bornier Elé. 1681 for any operations on the injection computer connectors.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Note:
This fault is activated in case of considerable oil dilution due to a significant number of particle filter regenerations.
Carry out the following:
– An oil change (see MR 364 (Mégane II) or MR 370 (Scénic II), Mechanical, 10A Engine and peripherals,
Engine oil: Draining – Filling),
– reset the oil wear meter,
– clear the faults.
Reset the oil wear meter after the oil change:
It will be necessary to reinitialise the display of the trip computer.
With the ignition on:
– hold down the TC* button for 5 s.
Re-initialisation has worked when the on-board computer no longer displays the key.
If this is not the case, restart the procedure.
Specific case:
If an oil change is performed before the oil service interval warning is exceeded, reinitialise the display.
EDC16C36_V50_DF1020/EDC16C36_V58_DF1020EDC16 C36
Program No.: 91
Vdiag No.: 50, 58