13B-115
MR-372-J84-13B200$324.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF209
PRESENT
OR
STOREDEGR POSITION SENSOR CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Micro-breaks
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
– there is smoke coming from the exhaust,
– the EGR offset fault finding function is disabled,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
Priorities when dealing with a number of faults:
–DF012 Sensor supply voltage no. 2 if it is present or stored.
IMPORTANT
This fault can result in a rapid and significant fouling of the particle filter.
If dealing with this fault requires the EGR valve to be replaced, run command SC036
Reinitialise programming and select EGR valve to reinitialise the EGR valve offsets
(see Replacement of components).
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
CO.0
NOTESNone
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation to earth of the following connections:
– connection code 3EL,
– connection code 3GC.
between components 120 and 1460.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF209/EDC16_V58_DF209/EDC16_V5C_DF209/EDC16_V18_DF209/EDC16_V1C_DF209/EDC16_V20_DF209
13B-136
MR-372-J84-13B200$360.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
*temp: temperatureDF310
PRESENT
OR
STORED
PARTICLE FILTER UPSTREAM TEMP*. SENSOR
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault becomes present if:
– ignition is on (CC.0),
– following a road test, engine warm (CO.1).
Special notes:
If the fault is present:
– particle filter regeneration is inhibited,
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
IMPORTANT
The particle filter upstream temperature sensor only measures temperatures
above 50°C.
CC.0
NOTESNone.
Check the condition of the particle filter upstream temperature sensor connector (see Wiring Diagram Technical
Note, Mégane II, Scénic II or Laguna II, component code 1287).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II, Scénic II or Laguna II, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation to earth of the following connections:
– connection code3XT,
– connection code3TD,
between components 120 and 1287.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
If the fault is still present, replace the particle filter upstream temperature sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF310/EDC16_V58_DF310/EDC16_V5C_DF310/EDC16_V18_DF310/EDC16_V1C_DF310/EDC16_V20_DF310
13B-144
MR-372-J84-13B200$360.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
*diff: differentialDF315
PRESENT
OR
STORED
PARTICLE FILTER DIFF.* PRESSURE SENSOR
CO: Open circuit
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Inconsistent signal
2.DEF: Signal outside lower limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute),
– the particle filter fault finding procedure is inhibited,
– particle filter regeneration is inhibited.
Priorities when dealing with a number of faults:
●DF315 if it is present.
●DF308 Particle filter clogged if DF315 is stored and DF308 is present.
●DF011 Sensor supply voltage no. 1 if it is present or stored
CC.1
NOTESNone
Check the condition of the differential pressure sensor connector (see Wiring Diagram Technical Note, Mégane
II, Scénic II or Laguna II, component code 1290).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II, Scénic II or Laguna II, component code 120).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Check the insulation from + 12 V of the following connections:
– connection code3TL,
– connection code3TM,
between components 120 and 1290.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
If the fault is still present, replace the differential pressure sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF315/EDC16_V58_DF315/EDC16_V5C_DF315/EDC16_V18_DF315/EDC16_V1C_DF315/EDC16_V20_DF315
13B-147
MR-372-J84-13B200$360.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF504
PRESENT
OR
STOREDAUTOMATIC TRANSMISSION
1.DEF: Multiplex line connection fault
NOTESConditions for applying the fault finding procedure to stored faults
The fault is considered present when the engine is running.
Special notes:
If the fault is present:
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
Run a multiplex network test (see 88B, Multiplexing).
If the fault is still present, run fault finding on the Automatic transmission system (see21A, Automatic
transmission).
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF504/EDC16_V58_DF504/EDC16_V5C_DF504/EDC16_V18_DF504/EDC16_V1C_DF504/EDC16_V20_DF504
13B-151
MR-372-J84-13B200$360.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF621
PRESENT
OR
STOREDEGR VALVE JAMMED OPEN (OBD FAULT)
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
Priorities when dealing with a number of faults:
– DF118 EGR solenoid valve servo-control,
– DF209 EGR valve position sensor circuit,
– DF272 EGR valve control circuit,
if they are present or stored.
Special note:
If the fault is present:
– there is heavy smoke coming from the exhaust,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
IMPORTANT
This fault can result in a rapid and significant fouling of the particle filter. If the EGR
valve needs to be replaced to resolve the fault, use command SC036 Reinitialise
programming and select EGR valve to reinitialise the EGR valve offsets (see
Replacement of components).
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Check the operation of the EGR valve:
– exit fault finding mode in CLIP,
– switch off the vehicle ignition,
– disconnect the EGR valve connector,
– remove the EGR valve.
– Check that there are no particles blocking the movement of the piston.
– Clean the EGR valve, (see Technical Note 3916A Cleaning the EGR valve).
– Refit the EGR valve, run command SC036 Reinitialise programming and select EGR valve to reinitialise the
EGR valve offsets (see Replacement of components).
If the valve is jammed or irrevocably seized, replace the EGR valve. Run command SC036 Reinitialise
programming and select EGR valve to reinitialise the EGR valve offsets (see Replacement of components).
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF621/EDC16_V58_DF621/EDC16_V5C_DF621/EDC16_V18_DF621/EDC16_V1C_DF621/EDC16_V20_DF621
13B-153
MR-372-J84-13B200$360.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF717
PRESENT
OR
STOREDPARTICLE FILTER UPSTREAM PRESSURE
1.DEF: Signal incoherent
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute),
– the particle filter fault finding procedure is inhibited,
– particle filter regeneration is inhibited.
Check the condition of the pressure pipe between the particle filter upstream take-off point and the differential
pressure sensor.
Check that the pipe is not crushed, blocked or pierced.
Check that it is correctly positioned and connected to the differential pressure sensor (see MR 395 (Laguna II),
370 (Scénic II) or 364 (Mégane II), Mechanical, 19B Exhaust, Particle filter pressure sensor: Removal –
Refitting).
Replace the pressure pipe if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF717/EDC16_V58_DF717/EDC16_V5C_DF717/EDC16_V18_DF717/EDC16_V1C_DF717/EDC16_V20_DF717
13B-158
MR-372-J84-13B200$360.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
*diff: differentialDF953
PRESENT
OR
STORED
PARTICLE FILTER ABSENT
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
– particle filter regeneration is inhibited,
– blue/white smoke and black particles coming from the exhaust,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
Priorities when dealing with a number of faults:
Firstly, deal with the following faults:
–DF315 Particle filter diff* pressure sensor if it is present or stored.
–DF717 Particle filter upstream pressure if it is present or stored.
Use bornier Elé.1681 for all operations on the engine management computer
connector.
IMPORTANT
In the long term, this fault may lead to premature wear and a greater risk of
turbocharger failure.
Check the condition of the differential pressure sensor connector (see Wiring Diagram Technical Note,
Mégane II, Scénic II or Laguna II, component code 1290).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II, Scénic II or Laguna II, component code 120).
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, wiring: Precautions for repair), repair the connector(s); otherwise, replace the wiring.
Check the particle filter is present.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF953/EDC16_V58_DF953/EDC16_V5C_DF953/EDC16_V18_DF953/EDC16_V1C_DF953/EDC16_V20_DF953