13B-132
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
DF308
CONTINUED 2
Step 2:
Check whether one or more faults, in the list below, are present or stored.
If at least one exists:
–Deal with the present and stored faults,
– replace the particle filter,
–run command SC036 Reinitialise programming (see Interpretation of commands) and select "After
particle filter replacement".
– Clear fault DF308, if Present or Stored
IMPORTANT: DF308 must be cleared within the 3 minutes following the last power latch.
– Check the weight of soot: PR383 Weight of soot in the particle filter.
– If PR383
≥ 1 g. Apply the procedure for test 8 Manual clearing of the soot weight.
If no faults are present or stored, move on to step 3.
List of faults:
– DF001 Coolant temperature sensor circuit.
– DF003 Atmospheric pressure sensor circuit.
– DF011 Sensor supply voltage no. 1.
– DF013 Sensor supply voltage no. 3.
– DF038 Computer.
– DF039 Inlet air temperature sensor circuit.
– DF055 Turbocharging pressure regulation circuit, 1.DEF Pressure too low.
– DF056 Air flowmeter circuit.
– DF310 Particle filter upstream temp* sensor.
– DF315 Particle filter diff* pressure sensor.
– DF717 Particle filter upstream pressure.
– DF778 Turbine upstream temperature regulation.
– DF953 Particle filter absent.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
13B-145
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
DF315
CONTINUED
CO.0
CO
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 continuity and insulation to earth 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.
1.DEF
2.DEF
NOTESNone
Check the condition of the pressure pipes on the differential pressure sensor.
Check their seal and that they are correctly positioned (see MR 395 (Laguna II) or 364 (Mégane II), or 370
(Scénic II), Mechanical, 19B Exhaust, Particle filter pressure sensor: Removal – Refitting).
Replace if necessary.
Check the condition of the connectors on the differential pressure sensor and the injection computer.
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 continuity and absence of interference resistance of the following connections:
– Connection code 3TL,
– Connection code 3TM.
Between components 120 and 1290.
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.
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.
13B-152
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
DF652
PRESENT
OR
STORED
TURBINE UPSTREAM TEMPERATURE SENSOR CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CC.1 : Short circuit to + 12 V
CO.1: Open circuit or short circuit to + 12 V
1.DEF: Signal outside upper limit
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:
– the EGR function is inhibited,
– particle filter regeneration is inhibited,
– the vehicle performance is reduced,
– the level 1 warning light is illuminated.
Priorities when dealing with a number of faults:
DF011 Sensor voltage supply no. 1
IMPORTANT
The turbine upstream temperature sensor only measures temperatures above
200°C.
Check the condition of the turbine upstream temperature sensor connector (see Wiring Diagram Technical
Note, Mégane II, Scénic II or Laguna II, component code 1589).
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 one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, wiring: precautions for repair), repair the connector, otherwise replace the wiring.
Check the continuity, absence of interference resistance and insulation against + 5 V and + 12 V of the
following connections:
– connection code 3ABS,
– connection code 3ABT.
Between components 120 and 1589.
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.
Check the continuity, absence of interference resistance and insulation to earth of connection 3ABS
between components 120 and 1589.
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.
Check for earth on connection 3ABT of the turbine upstream temperature sensor
If the fault is still present, warm up the engine until PR064 Coolant temperature = 80°C.
Run the engine at fast idle speed:
PR055 Engine speed = 1500 rpm for 2 minutes.
If PR667 Turbine upstream temperature remains fixed at 200°C, replace the turbine upstream temperature
sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF652/EDC16_V58_DF652/EDC16_V5C_DF652/EDC16_V18_DF652/EDC16_V1C_DF652/EDC16_V20_DF652
13B-155
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
DF778
CONTINUED
Check the turbine upstream temperature sensor connections.
check the engine management computer connections.
If there is a repair procedure (see Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Check the continuity, absence of interference resistance and insulation against + 5 V and + 12 V of the
following connections:
– connection code 3ABS,
– connection code 3ABT.
Between components 120 and 1589.
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.
Check the continuity, absence of interference resistance and insulation to earth of connection 3ABS
between components 120 and 1589.
Check for earth on connection 3ABT of the turbine upstream temperature sensor.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Apply TEST 4 Turbocharged air inlet circuit check.
If the fault is still present, warm up the engine until parameter PR064 Coolant temperature = 80°C.
Run the engine at fast idle speed:
PR055 Engine speed = 1500 rpm for 2 minutes.
If PR667 Turbine upstream temperature remains fixed at 200°C, replace the turbine upstream temperature
sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
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
13B-159
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
DF953
CONTINUED
If the filter is present,
Visually inspect the particle filter by placing the vehicle on a lift:
– not damaged (no abnormal welds, if necessary compare it with another vehicle fitted with particle filter),
– if After-Sales sleeves are present, due to work being carried out previously, check that the particle filter's
contents were not emptied out when it was removed.
If the particle filter is not working correctly or is absent:
– Replacing the particle filter,
– run command SC036 Reinitialise programming and select After particle filter replacement (see
Interpretation of commands).
– Check the weight of soot: PR383 Weight of soot in the particle filter.
– If PR383
≥ 1 g. Apply the procedure for test 8 Manual clearing of the soot weight.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
13B-164
MR-372-J84-13B200$504.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of statuses
ET001
COMPUTER + AFTER IGNITION FEED
STATUS DEFINITIONPRESENT, this status indicates that the + after ignition feed is active.
ABSENT, this status indicates that the + after ignition feed is inactive.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Conformity check with the engine stopped and the ignition on, or engine running, and engine coolant
temperature > 80°C
PRESENT
With the ignition on and engine running warm at idle speed, + after ignition feed is
activated.
In the event of a fault, apply the interpretation of DF046 Battery voltage or DF151 Main
relay circuit.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V18_ET001/EDC16_V1C_ET001/EDC16-V20_ET001/EDC16_V50_ET001/EDC16_V58_ET001/EDC16-V5C_ET001 EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
MR-372-J84-13B200$504.mif
13B-165
MR-372-J84-13B200$504.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of statuses
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
ET001
CONTINUED
Sensor electrical conformity
"ABSENT"
NOTESIgnition on
Check the condition and the conformity of the supply fuse F5D (5A) of the Protection and Switching Unit
(Vdiag 18, 1C, 20 only).
Repair if necessary
Check for an earth on connection NT (Laguna II) or N (Mégane II and Scénic II) of component 120.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check for a + 12 V feed on connection AP29 (Laguna II) or AP15 (Mégane II and Scénic II) of the injection
computer.
If there is no voltage, check the continuity and insulation from earth of connection AP29 (Laguna II) or AP15
(Mégane II and Scénic II) between components 120 and 1337 (Vdiag 18, 1C, 20 only) or 597 (Vdiag 50, 58, 5C
only).
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.
PRESENT
NOTESIgnition on
Check that there is no + 12 V feed with the ignition off on connection AP29 (Laguna II) or AP15 (Mégane II and
Scénic II) of component 120.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.