13B-103
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
DF086
PRESENT
OR
STOREDCOOLANT PUMP RELAY CONTROL CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault appears after the ignition has been switched off and after waiting 1 minute,
or after actuator command AC195 Electric coolant pump.
Special notes:
The control relay is located in the engine compartment connection unit.
If the fault is present:
– the EGR function is inhibited,
– the level 1 warning light is illuminated.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
CO.0
NOTESNone
Check the electric coolant pump relay FM3 (A 20A or 30A) and check that it is operating correctly.
Check the injection computer connections.
Repair if necessary.
Check the continuity between the following connections:
– connection codes 3FB and 3VG of component 573 (Laguna II).
– connection codes 3VG and 3FB2 of component 573 (Scénic II).
– connection codes 3VG and 3FB of component 573 (Mégane II).
If these checks are correct,
Check the continuity and insulation to earth of the following connections:
connection code 3VG between components 120 and 573 (Laguna II) or 299 (Mégane II and Scénic II)
connection code 3FB between components 573 and 120 (Laguna II) or 1337 (Mégane II and Scénic II)
connection code 3VH between components 573 and 369.
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 M of the turbocharger bearing coolant pump connector.
Repair if necessary.
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.
EDC16_V50_DF086/EDC16_V58_DF086/EDC16_V5C_DF086/EDC16_V18_DF086/EDC16_V1C_DF086/EDC16_V20_DF086
13B-106
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
DF097
PRESENT
OR
STOREDCAMSHAFT SENSOR CIRCUIT
1.DEF: No signal
2.DEF: Inconsistent signal
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.
A drop in engine speed followed by nominal behaviour from the vehicle is possible.
Special notes:
If this fault is present:
– It is impossible to start the vehicle,
– the level 1 warning light is illuminated.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
1.DEF
2.DEF
NOTESCheck the conformity of the + 12 V after relay supply line,
from connection 3FB (Mégane II and Laguna II) or 3FB1
(Scénic II) of component 1337 or 597.
Use the vehicle Wiring Diagrams Technical Note.
Check the camshaft sensor connections.
Check the injection computer connections.
Check the camshaft sensor fitting and positioning,
Also check its general condition, (damaged housing, overheating, etc.),
Carry out the necessary repairs.
Check the continuity and absence of interference resistance of the following connections:
– connection codes 3CQ and 3FJ between components 120 and 746.
With the ignition on and the camshaft sensor connected:
Use a voltmeter to measure the voltage between connections 3FJ and 3FB (Mégane II and Laguna II) or 3FB1
(Scénic II) of the camshaft sensor:
The voltage displayed should be equal to the battery voltage ± 0.08 V.
– If the voltage is outside permitted tolerance values, take the measurement again on the connector, with the
camshaft sensor disconnected,
– If the voltage is still outside permitted tolerance values with the sensor disconnected.
Check thecontinuity and the absence of interference resistance on connection 3FB (Mégane II and Laguna
II) or 3FB1 (Scénic II) between components 756 and 1337 or 597.
If the measured voltage is correct with the sensor disconnected.
Measure the resistance of the camshaft sensor between connections 3CQ and 3FB (Mégane II and Laguna II)
or 3FB1 (Scénic II).
Replace the sensor if its resistance is not 9750 Ω < X < 10750 Ω at 20°C
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, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF097/EDC16_V58_DF097/EDC16_V5C_DF097/EDC16_V18_DF097/EDC16_V1C_DF097/EDC16_V20_DF097
13B-107
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
DF118
PRESENT
OR
STOREDEGR SOLENOID VALVE SERVO-CONTROL
1.DEF: Insufficient EGR valve flow.
2.DEF: Excessive EGR valve flow.
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 EGR function is disabled.
If 1.DEF is present, the level 1 warning light is lit.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
Priority when dealing with a number of faults:
–DF272 EGR valve control circuit 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).
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Check for continuity and absence of interference resistance of the following connections:
- connection code 3VP,
- connection code 3VQ.
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.
Check that there are no leaks on the EGR circuit, pierced or damaged pipes, and the tightness of the clips.
Measure the resistance of the EGR valve motor between connections 3VP and 3VQ.
Replace the EGR valve if the resistance displayed is not between 1 Ω < X < 400 Ω at 20°C.
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_DF118/EDC16_V58_DF118/EDC16_V5C_DF118/EDC16_V18_DF118/EDC16_V1C_DF118/EDC16_V20_DF118
13B-110
MR-372-J84-13B200$324.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of faults
DF176
PRESENT
OR
STOREDLOW-SPEED FAN ASSEMBLY CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Inconsistent signal
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– an attempted start, or with engine running,
– command AC038 Low-speed fan assembly relay is run.
Special notes:
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
CO
NOTESNone.
Check the + 12 V after relay supply to the relay mounting R09 on connection 3FB.
Check the condition of the connections and the correct operation of the running lights relay.R09
Replace it if necessary.
Check the continuity and absence of interference resistance on connection 3JN between components 120
and 597.
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.
CC.0
NOTESNone.
Check the continuity and insulation to earth of connection 3FB between components 983 and 700.
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 REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V18_DF176/EDC16_V1C_DF176/EDC16_V20_DF176EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20
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-118
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
DF226
PRESENT
OR
STORED
DAMPER VALVE CIRCUIT
CC.1:Short circuit to + 12 V
CC.0: Short circuit to earth
CO: Open circuit
CC: Short circuit
1.DEF: Internal electronic fault
2.DEF: External fault finding
3.DEF: Values outside tolerances
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the engine is started,
– a road test,
– actuator command AC012 Damper valve;
– the ignition is switched off for 1 minute.
Special notes:
If the fault is present:
– it is difficult or even impossible to start the vehicle,
– the engine stops noisily,
– the level 1 warning light is illuminated.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
Priorities when dealing with a number of faults:
Deal with fault DF046 "Battery voltage" first if it is present or stored.
IMPORTANT
This fault can result in a rapid and significant fouling of the particle filter.
CC.1
NOTESAfter any work is carried out on the damper valve, run SC036
Reinitialise programming and select Damper valve, then
switch off the ignition and wait 1 minute.
Check the damper valve connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation from + 12 V of the following connections:
– connection code NT (Laguna II) or N (Scénic II and Mégane II) between component 1461 and chassis earth
NT or N.
– connection code 3VN,
– connection code 3VM.
between components 120 and 1461.
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 damper valve.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF226/EDC16_V58_DF226/EDC16_V5C_DF226/EDC16_V18_DF226/EDC16_V1C_DF226/EDC16_V20_DF226
13B-128
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
DF272
PRESENT
OR
STOREDEGR VALVE CONTROL CIRCUIT
1.DEF: Valve jammed open
2.DEF: Valve jammed closed
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
Special notes:
The EGR function is inhibited if several faults are present with DF226 Damper valve
circuit.
If 1.DEF is present:
– the level 1 warning light is lit,
– the vehicle performance is reduced,
– there is smoke coming from the exhaust.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
1.DEF
2.DEF
NOTESNone
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and absence of interference resistance of the following connections:
– connection code 3VP,
– connection code 3VQ.
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.
Check that there are no leaks on the EGR circuit, pierced or damaged pipes, and the tightness of the clips.
Measure the resistance of the EGR valve motor between connections 3VP and 3VQ.
Replace the EGR valve if the resistance displayed is not between 1 Ω < X < 400 Ω at 20°C.
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_DF272/EDC16_V58_DF272/EDC16_V5C_DF272/EDC16_V18_DF272/EDC16_V1C_DF272/EDC16_V20_DF272
13B-129
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
DF276
PRESENT
INJECTOR CODE PROGRAMMING
1.DEF: Internal electronic fault when writing
2.DEF: No code stored
NOTESCondition for applying fault finding ONLY to a present fault:
The fault is declared present after:
– reprogramming the injection computer,
– replacing and programming the injection computer.
Special notes:
If the fault is present:
– the engine speed is limited,
– the level 1 warning light is illuminated.
1.DEF
NOTESNone
Enter the injector codes using command SC002 Enter injector codes (see Interpretation of commands).
If the fault is still present after switching off the ignition, waiting 1 minute and then re-establishing dialogue.
Refer to the interpretation of command SC002 Enter injector codes.
If the fault is still present, contact the Techline.
Otherwise clear the fault memory using RZ007 Fault memory.
2.DEF
NOTESThis fault appears on any blank computer (new or recently
reprogrammed)
WARNING
A computer without the IMA option can be replaced by a computer with this option. The codes are not
saved during command SC003 Save computer data.
In this case, status ET104 “Use of injector codes” becomes “YES”, fault DF276 is present and the engine
operates in defect mode.
Program the injector codes using command SC002 Enter injector codes (see Interpretation of commands).
If the fault is still present after switching off the ignition, waiting 1 minute and then re-establishing dialogue, refer
to interpretation of command SC002 Enter injector codes.
If the fault is still present, contact the Techline.
Otherwise clear the fault memory using RZ007 Fault memory.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF276/EDC16_V58_DF276/EDC16_V5C_DF276/EDC16_V18_DF276/EDC16_V1C_DF276/EDC16_V20_DF276