Page 201 of 431

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
Page 234 of 431

13B-234V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET205
ET206
ET207THERMOPLUNGER 1 RELAY CONTROLTHERMOPLUNGER 2 RELAY CONTROL
THERMOPLUNGER 3 RELAY CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the thermoplunger is supplied.
INACTIVE: This status indicates that the thermoplunger is not supplied.
NOTESStatus only available on certain Vdiag48 (depending on vehicle equipment).
INACTIVEStatuses ET205, ET206, ET207 are INACTIVE with the ignition on and the engine
stopped, or when the engine is warm.
ACTIVEStatuses ET205, ET206 and ET207 are ACTIVE when the engine is started, the
engine coolant temperature is low (< 15°C) and the air temperature is low (< 5°).
This program allows the engine coolant to be heated to enable the passenger
compartment to be heated.
The thermoplungers also act both to load the engine to improve regeneration of the
particle filter
To control the operation of the thermoplunger relays, run the following commands:
AC063 Thermoplunger no. 1 relay.
AC064 Thermoplunger no. 2 relay.
AC031 Thermoplunger no. 3 relay.
In the event of a fault, refer to the interpretation of faults:
DF032 Thermoplunger 1 relay control circuit.
DF033 Thermoplunger 2 relay control circuit.
DF034 "Heating element 3 relay control circuit".
EDC16C36_V48_ET205/EDC16C36_V48_ET206/EDC16C36_V48_ET207/EDC16C36_V58_ET205/EDC16C36_V58_ET206/
EDC16C36_V58_ET207
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 58
Page 248 of 431
13B-248V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET651
CONTINUED
STATUS 4, 17
Check for present and stored faults, and repair.
STATUS 8Reset the EGR offsets by referring to the interpretation of command SC036
"Reinitialise the programming" and select "EGR valve".
STATUS 11, 22Allow the engine to heat up until this cut-off disappears.
STATUS 18Check that the regeneration of the particle filter in progress has completely finished.
STATUS 20Allow the engine to cool until this cut-off disappears.
STATUS 21Too low atmospheric pressure, the EGR valve is disabled.
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
Page 257 of 431

13B-257V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
* Regen: regeneration
ET742
ET743
ET744
ET745
ET746
ET747
ET748
ET749
ET750
ET751STORED REGEN. REQUEST STATUS No. 1
STORED REGEN. REQUEST STATUS No. 2
STORED REGEN. REQUEST STATUS No. 3
STORED REGEN. REQUEST STATUS No. 4
STORED REGEN. REQUEST STATUS No. 5
STORED REGEN. REQUEST STATUS No. 6
STORED REGEN. REQUEST STATUS No. 7
STORED REGEN. REQUEST STATUS No. 8
STORED REGEN. REQUEST STATUS No. 9
STORED REGEN. REQUEST STATUS No. 10
STATUS DEFINITIONStatuses ET742 to ET751 correspond to the causes for the regeneration request. They
are connected to parameters PR816 Stored regeneration start No. 1 to PR825
Stored regeneration start No. 10 which contains the stored mileage of the vehicle at
the start of the regeneration (for example, PR745 Store regeneration start No. 4 is
related to ET709 Store regen.* request status No. 4).
NOTESSpecial notes:
For Vdiag 48:
These statuses should only be interpreted for ALP11 Particle filter warning light
comes on too frequently.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
STATUS 1Request by weight of soot
Regeneration has been requested after the maximum weight of soot has been
reached and measured in the particle filter, without the particle filter warning light
coming on.
EDC16C36_V48_ET742/EDC16C36_V48_ET743/EDC16C36_V48_ET744/EDC16C36_V48_ET745/EDC16C36_V48_ET746/
EDC16C36_V48_ET747/EDC16C36_V48_ET748/EDC16C36_V48_ET749/EDC16C36_V48_ET750/EDC16C36_V48_ET751/
EDC16C36_V50_ET742/EDC16C36_V50_ET743/EDC16C36_V50_ET744/EDC16C36_V50_ET745/EDC16C36_V50_ET746/
EDC16C36_V50_ET747/EDC16C36_V50_ET748/EDC16C36_V50_ET749/EDC16C36_V50_ET750/EDC16C36_V50_ET751/
EDC16C36_V58_ET742/EDC16C36_V58_ET743/EDC16C36_V58_ET744/EDC16C36_V58_ET745/EDC16C36_V58_ET746/
EDC16C36_V58_ET747/EDC16C36_V58_ET748/EDC16C36_V58_ET749/EDC16C36_V58_ET750/EDC16C36_V58_ET751
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
Page 258 of 431

13B-258V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
* Regen: regeneration
ET742
ET743
ET744
ET745
ET746
ET747
ET748
ET749
ET750
ET751
CONTINUED
STATUS 2
Request by estimated weight of soot
Regeneration has been requested following an estimate of the maximum weight of
soot in the particle filter, without the particle filter warning light coming on.
STATUS 3Request by distance travelled
Regeneration has been requested because the distance travelled since the last
successful regeneration has reached the maximum authorised value (the particle filter
warning light has not illuminated).
STATUS 4Request by number of regeneration failures or weight of soot
This status corresponds to the appearance of DF312 Speed request.
This corresponds to the maximum number of failed regenerations or to the maximum
weight of soot in the particle filter, with illumination of the particle filter warning light.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
Page 260 of 431

13B-260V9 MR-372-J84-13B450$140.mif
DIESEL INJECTION
Fault finding – Parameter summary table13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Tool parameter Diagnostic tool title
PR076Refrigerant sensor voltage
PR077EGR valve position sensor voltage
PR079Atmospheric pressure sensor voltage
PR080Rail pressure sensor voltage
PR082Fuel temperature sensor voltage
PR083Air temperature sensor voltage
PR084Coolant temperature sensor voltage.
PR086Pedal potentiometer voltage gang 1
PR088Pedal potentiometer gang 2 voltage
PR089Vehicle speed
PR128First EGR valve offset
PR129Last EGR valve offset
PR130Cruise control setpoint
PR131EGR air flow difference
PR132Air flow
PR146Inlet air flow
PR157Fuel flow setpoint
PR171Air flow setpoint for EGR
PR190Engine idle speed setpoint.
PR209Turbocharging pressure loop difference
PR213Rail pressure loop difference
PR224Turbocharging pressure sensor voltage
PR358Sensor reference voltage
PR364Cylinder no. 1 fuel flow correction
PR365Cylinder no. 4 fuel flow correction
PR381Particle filter downstream temperature
PR382Particle filter upstream temperature
PR383Weight of soot in the particle filter
Page 261 of 431

13B-261V9 MR-372-J84-13B450$140.mif
DIESEL INJECTION
Fault finding – Parameter summary table13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
* diff: differential
* temp: temperatureTool parameter Diagnostic tool title
PR385Exhaust pipe flow
PR391Mileage since particle filter replacement
PR405Cylinder no. 2 fuel flow correction
PR406Cylinder no. 3 fuel flow correction
PR412Mileage at last successful regeneration
PR414Particle filter pressure diff.*
PR415Time since last regeneration
PR420Damper valve error counter
PR667Turbine upstream temperature
PR668Turbine upstream temperature sensor voltage
PR672Damper valve position setpoint
PR747Damper valve position
PR777Richness ratio sensor voltage
PR778Richness ratio sensor temp.*
PR779Richness ratio
PR784DF312 recording No. 1
PR785DF312 recording No. 2
PR786DF312 recording No. 3
PR787DF312 recording No. 4
PR788DF312 recording No. 5
PR789DF312 recording No. 6
PR790DF312 recording No. 7
PR791DF312 recording No. 8
PR792DF312 recording No. 9
PR793DF312 recording No. 10
PR794Stored regeneration failure no. 1
PR795Stored regeneration failure no. 2
PR796Stored regeneration failure no. 3
Page 309 of 431

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