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
13B-259V9 MR-372-J84-13B450$140.mif
13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
* OCR: Opening cycle ratioTool parameter Diagnostic tool title
PR002Alternator charge
PR005EGR valve opening setpoint
PR006Rail pressure regulator current
PR007Rail pressure regulator current setpoint
PR008Rail reference pressure
PR009Turbocharging pressure setpoint
PR015Engine torque
PR017Fuel flow
PR022EGR valve position feedback loop difference
PR025Mileage
PR030Accelerator pedal position
PR035Atmospheric pressure
PR037Refrigerant pressure
PR038Rail pressure
PR041Turbocharging pressure
PR045Power requested by heating elements
PR047Turbocharging pressure OCR*
PR048OCR* Rail pressure regulation valve
PR051EGR valve position feedback
PR053Engine speed requested by air conditioning
PR054Engine speed requested by heating elements
PR055Engine speed
PR058Air temperature
PR063Fuel temperature
PR064Coolant temperature
PR066Oil temperature
PR071Computer feed voltage
PR073Air flowmeter supply voltage
DIESEL INJECTION
Fault finding – Parameter summary table
13B-309V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR132
CONTINUED
Sensor electrical conformity
Test the air inlet circuit (from the air filter inlet to the inlet manifold,
apply test 4 Turbocharged air inlet circuit check):
– air filter unit inlet not blocked and filter not clogged,
–visual inspection only, run test 4 of ALP2: Starting fault or starting impossible,
– oil vapour recirculation circuit connection conformity.
–absence of leaks or blockages in the low and high pressure air circuits: pipes, presence and tightness of the
mounting clips, mounting of the turbocharger pressure sensor, intercooler, etc.,
– check that the damper valve is not jammed closed.
Carry out the necessary repairs.
Check the electrical conformity of the air flowmeter:
Check the + 5 V feed to the air flowmeter.
– connection 3KJ of component 799.
Check the +12 V after relay feed to the air flowmeter.
– connection 3FB of component 799.
Check for continuity and absence of interference resistance of the following connections:
– connection code3DV,
– connection code3DW,
between components 120 and 799.
With the flowmeter connected, the vehicle ignition on and engine stopped:
Check the voltage between connections 3DW and 3DV of component 799.
– If the voltage is not approximately 0.6 V ± 0.1 V, replace the air flowmeter.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-346V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR873OIL OXIDATION SIGNAL
PARAMETER
DEFINITIONThis parameter indicates the distance of the vehicle when the oil dilution threshold is
reached.
NOTESOnly apply the interpretation of this parameter if the OCS (oil control system)
program is activated on the instrument panel. On the instrument panel computer,
check the configuration reading LC106 OCS: WITH
This parameter is not operational in Vdiag44
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C, without electrical consumers
The oil condition is calculated by the oxidation program in the injection computer, according to the number of
engine revolutions.
When this count reaches a certain threshold before the end of the oil service period, the injection computer sends
a signal to the instrument panel, which will display service due. Parameter PR873 corresponds to the vehicle
mileage at the time this signal is sent.
Then the instrument panel computer deducts 900 miles (1500 km) before displaying the message Service
required.
IMPORTANT
When the message Service required appears on the instrument panel, the customer must arrange an oil change
within the remaining 900 miles (1500 km).
EDC16CP36_V4C_PR873/EDC16CP36_V48_PR873/EDC16CP36_V50_PR873/EDC16CP36_V54_PR873/EDC16CP36_V58_PR873
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 with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 4C, 48, 50,
54, 58
13B-348V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR875OIL DILUTION SIGNAL
PARAMETER
DEFINITIONThis parameter indicates the vehicle mileage when the oil dilution threshold is reached.
NOTESThis parameter should be interpreted only if the OCS (Oil Control System) program
is activated on the instrument panel. On the instrument panel computer, check the
configuration reading LC106 O.C.S: WITH.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C, without electrical consumers
The injection computer assesses the dilution rate of the engine oil according to the customer's driving style. When
the dilution level reaches a certain threshold before the end of the oil change interval, the injection computer sends
a signal to the instrument panel, which then displays Service required. Parameter PR875 corresponds to the
vehicle mileage at the time this signal is sent.
IMPORTANT
When the message service required appears on the instrument panel, the customer must carry out an oil service
immediately to prevent damage to their engine.
EDC16CP36_V50_PR875EDC16 C36
Program No.: 91
VDIAG No.: 50
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 with the diagnostic tool.
13B-349V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR1012WEIGHT OF SOOT AFTER REGENERATION
PARAMETER
DEFINITIONThis parameter indicates the weight of soot, in g, in the particle filter after a
regeneration.
NOTESConsult this parameter after using SC017 Particle filter regeneration.
Conformity check: Engine stopped and the ignition on, or the engine running and the engine coolant
temperature > 80°C without electrical consumers.
If PR1012 is less than 15 g, the particle filter regeneration completed correctly.
If PR1012 is greater than 15 g, it is necessary to perform a second particle filter regeneration using command
SC017 Particle filter regeneration (see interpretation of commands).
IMPORTANT:
Before performing a second After-Sales regeneration of the particle filter, the engine must be allowed to cool down
for 2 hours with the bonnet open.
Do not carry out the usual engine oil change before a second After-Sales regeneration (see SC017 Particle filter
regeneration).
EDC16C36_V48_PR1012/EDC16C36_V50_PR1012/EDC16C36_V58_PR1012EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-355
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017PARTICLE FILTER REGENERATION
NOTESOnly run this command after interpretation of the following faults:
– DF308 Clogged particle filter,
– DF311 Failed regenerations limit exceeded,
– DF312 Speed request.
WARNING
It is essential to observe the health and safety regulations (see MR364 (Megane II ph2), MR370 (Scenic II
ph2), Mechanical, 19B, Exhaust, Particle filter: Cleaning) and observe the following procedure.
SAFETY INSTRUCTIONS TO BE FOLLOWED:
The regeneration causes exhaust fumes and high temperatures.
The vehicle must be outside during regeneration.
If it is not possible to carry out regeneration outside, use an extractor fan that can withstand the very high
regeneration temperatures (400°C at the exhaust outlet).
Perform regeneration on a surface free from fire risks (oil, dry leaves, etc.). Nothing should be left in the vicinity
of the exhaust pipe.
IMPORTANT
– Check the engine oil level before running the command to avoid any engine racing. The oil level must
be between the minimum threshold and the middle level on the oil dipstick.
– Before performing a particle filter regeneration, it is essential to deactivate the air conditioning
compressor (risk of engine damage) and all the electrical consumers.
IF NECESSARY:
Regeneration can be stopped by briefly pressing the vehicle start button twice (less than 3 seconds).
Switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes) Communication lost
with computer: EDC16C36, check the tool connection and the computer supply. before switching on the
ignition again.
PROCEDURE TO BE FOLLOWED:
Before a particle filter regeneration, check that there are no leaks or blockages in the exhaust pipe,
Repair if necessary
To run this command, select the command mode on the diagnostic tool, and select command SC017 Particle
filter regeneration.
When regeneration is complete, a message will indicate whether regeneration was successful, and what
operations need to be carried out (filter replacement, whether an oil service is required, etc.).
EDC16C36_V48_SC017/EDC16C36_V50_SC017/EDC16C36_V58_SC017EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-357
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 2
IMPORTANT:
Before performing a second After-Sales regeneration of the particle filter, the engine must be allowed to cool down
for 2 hours with the bonnet open.
Do not carry out the usual engine oil change before a second After-Sales regeneration.
Only for Vdiag 50:
– Change the engine oil if a message on the instrument panel requests it.
For the other VDiag:
–Consult PR848 Number of regeneration failures. If PR848 is greater than 3, change the engine oil.
●Particle filter too full - replace the particle filter: regeneration has failed. The weight of soot in the particle
filter is so great that it is creating back-pressure. Deal with any faults that appear or replace the particle filter.
Run command SC036 Reinitialise programming and select After particle filter replacement.
– Switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes): Communication
lost with computer: EDC16C36, check the tool connection and computer power supply.
–Then switch on the ignition again, clear the present or stored faults from the computer memory (operation
to be carried out within 3 minutes of switching on the ignition).
– Check the weight of soot: PR383 Weight of soot in the particle filter.
– If PR383
≥ 1 g. Apply the procedure of test 12 Manual clearing of the weight of soot.
Only for Vdiag 50:
– Change the engine oil if a message on the instrument panel requests it.
– For the other Vdiags:
–Consult PR848 Number of regeneration failures. If this parameter is greater than 3, it is essential to change
the engine oil.
– Explain to the customer the procedure for regeneration when driving to avoid unnecessary repairs: see PART D
in the interpretation of DF312 Speed request.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58