
13B-125
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.
V12 MR-372-J84-13B300$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF062
PRESENT
OR
STOREDMISFIRING ON CYLINDER 4
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault reappears after:
– engine speed PR055 Engine speed between idle speed and 1050 rpm,
– a coolant temperature PR064 Coolant temperature ≥ 20°C.
Priorities when dealing with a number of faults:
– DF029 Cylinder 4 injector control circuit
– DF052 Injector control circuit.
Special notes:
After an injector has been replaced, run commands SC002 Enter injector codes and
SC036 Reinitialise programming and follow the procedure.
IMPORTANT:
Cylinder no. 1 is located at the timing end.
Do not disconnect the injectors when the engine is running.
When removing and refitting an injector, respect the cleanliness guidelines and safety
advice (see MR364 (Mégane II ph2), MR370 (Scénic II ph2), MR 395 (Laguna II
ph2), 402 (Vel Satis ph2), 405 (Espace IV ph2), Mechanical, 13B Diesel injection,
Diesel injectors: Removal - Refitting).
EDC16CP33_V18_DF062 / EDC16CP33_V1C_DF062 / EDC16CP33_V54_DF062 / EDC16CP33_V20_DF062 / EDC16CP33_V58_DF062 /
EDC16CP33_V5C_DF062 / EDC16CP33_V24_DF062 / EDC16CP33_V04_DF062 / EDC16CP33_V08_DF062 / EDC16CP33_V44_DF062 /
EDC16CP33_V4C_DF062 / EDC16CP33_V34_DF062 / EDC16CP33_V38_DF062 / EDC16CP33_V74_DF062 / EDC16CP33_V28_DF062 /
EDC16CP33_V62_DF062 / EDC16CP33_V26_DF062 / EDC16CP33_V60_DF062

13B-129
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.
V12 MR-372-J84-13B300$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
IMA*: Individual injector correction
IMA*: Individual injector correction
DF066
CONTINUED 1
WARNING:
If fault DF066 is still present after the injector codes have been entered, check that power latch occurs each time
the ignition is switched off:
– Switch off the ignition.
– Wait for the diagnostic tool message (maximum wait 8 min): Loss of dialogue with the computer: EDC16
CP33, check the tool connection and the computer supply voltage and switch on the ignition again.
– Establish dialogue.
If the fault has become stored, clear the fault memory and end the operation.
If the fault is still present, contact the Techline.
2.DEF
NOTESConditions for applying the fault finding procedure to a
stored fault:
The fault is declared present after:
– the injection computer has been replaced,
– reprogramming.
This fault is present on all blank computers (new or after reprogramming).
– Program the injector codes using:
– either command SC001 Write saved data,
– or command SC002 Enter injector codes or Interpretation of commands.
The IMA* codes must be read from left to right.
(Consult the procedures defined in the Interpretation of commands section).

13B-139
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.
V12 MR-372-J84-13B300$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF107
PRESENT
OR
STOREDCOMPUTER MEMORY
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– a road test followed by a power latch phase.
Special notes:
The level 1 and EOBD (European On Board Diagnostic) warning lights are lit.
If the fault is stored, clear the fault from the computer memory.
In the main screen of the CLIP diagnostic tool, note the injector codes.
Clear the computer memory using command RZ034 Computer memory.
Switch off the ignition, wait for the diagnostic tool message (maximum wait 8 min): Loss of dialogue with the
computer: EDC16 CP33, check the tool connection and the computer supply voltage then switch on the
ignition again.
Switch on the ignition and re-establish dialogue.
If the fault is still present, contact the Techline.
If the fault is no longer present, carry out the programming (see Programming).
Switch off the ignition, wait for the diagnostic tool message (maximum wait 8 min): Loss of dialogue with the
computer: EDC16 CP33, check the tool connection and the computer supply voltage then switch on the
ignition again.
For vehicles equipped with a particle filter:
– Check the exhaust pipe for leaks or blockage. Repair if necessary.
– Carry out a particle filter regeneration using command SC017 Particle filter regeneration (see Interpretation
of commands) and perform an oil change if the vehicle is not new.
EDC16CP33_V18_DF107 / EDC16CP33_V1C_DF107 / EDC16CP33_V54_DF107 / EDC16CP33_V20_DF107 / EDC16CP33_V58_DF107 /
EDC16CP33_V5C_DF107 / EDC16CP33_V24_DF107 / EDC16CP33_V04_DF107 / EDC16CP33_V08_DF107 / EDC16CP33_V44_DF107 /
EDC16CP33_V4C_DF107 / EDC16CP33_V34_DF107 / EDC16CP33_V38_DF107 / EDC16CP33_V74_DF107 / EDC16CP33_V28_DF107 /
EDC16CP33_V62_DF107 / EDC16CP33_V26_DF107 / EDC16CP33_V60_DF107

13B-160
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.
V12 MR-372-J84-13B300$073.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF209
PRESENT
OR
STOREDEGR VALVE POSITION SENSOR CIRCUITCC.0: Short circuit to earth
CO.0: Open circuit or short circuit to earth
CO.1: Open circuit or short circuit to +12 V
1.DEF: Open circuit or short circuit
NOTESPriorities when dealing with a number of faults:
– DF046 Battery voltage.
– DF012 Sensor supply voltage no. 2.
Conditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the ignition is switched on.
– the engine is started,
– a road test.
Special notes:
If the fault is present:
–the EOBD (European On Board Diagnostic) warning light is lit,
– EGR programming cut-off: valve in the closed position,
– particle filter regeneration is inhibited.
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
CO.1
1.DEF
NOTESNone.
Check the condition of the EGR valve (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2,
Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1460 or 169).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
EDC16CP33_V18_DF209 / EDC16CP33_V1C_DF209 / EDC16CP33_V54_DF209 / EDC16CP33_V20_DF209 / EDC16CP33_V58_DF209 /
EDC16CP33_V5C_DF209 / EDC16CP33_V24_DF209 / EDC16CP33_V04_DF209 / EDC16CP33_V08_DF209 / EDC16CP33_V44_DF209 /
EDC16CP33_V4C_DF209 / EDC16CP33_V34_DF209 / EDC16CP33_V38_DF209 / EDC16CP33_V74_DF209 / EDC16CP33_V28_DF209 /
EDC16CP33_V62_DF209 / EDC16CP33_V26_DF209 / EDC16CP33_V60_DF209
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-161
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.
V12 MR-372-J84-13B300$073.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF209
CONTINUED 1
Measure the resistance between connections 3GC and 3JM (sensor supply and sensor earth), and between
connections 3EL and 3JM (sensor signal and sensor earth) of component 1460 or 169.
If the resistances of the EGR valve are less than 1 kΩ, replace the valve.
After replacement, run command SC036 Reinitialise programming and select EGR VALVE to reinitialise the
EGR valve offsets.
Check the insulation from + 12 V and + 5 V (computer feeds) of the following connection:
•3EL between components 120 and 1460 or 169.
Check the continuity of the following connection:
•3JM between components 120 and 1460 or 169.
If the connection or connections are 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 the insulation between the following connections:
•3EL between components 120 and 1460 or 169,
•3VP between components 120 and 1460 or 169.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-162
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.
V12 MR-372-J84-13B300$073.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF209
CONTINUED 2
CO.0
CC.0NOTESNone.
Check the condition of the EGR valve (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2,
Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1460 or 169).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Measure the resistance between connections 3GC and 3JM (sensor supply and sensor earth), and between
connections 3EL and 3JM (sensor signal and sensor earth) of component 1460 or 169.
If the resistances of the EGR valve are greater than 15 kΩ, replace the valve.
After replacement, run command SC036 Reinitialise programming and select EGR valve to reinitialise the EGR
valve offsets.
Check the continuity of the following connections:
•3EL between components 120 and 1460 or 169,
•3GC between components 120 and 1460 or 169.
Check the insulation to earth of the following connection:
•3EL between components 120 and 1460 or 169.
Check the insulation between the following connections:
•3EL between components 120 and 1460 or 169,
•3VQ between components 120 and 1460 or 169.
If the connection or connections are faulty and if there is a repair method (see
Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-180
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.
V12 MR-372-J84-13B300$073.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF272
PRESENT
OR
STOREDEGR VALVE CONTROL CIRCUITCO: Open circuit
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
CC: Short circuit
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the ignition is switched on,
– the engine is started,
– a road test.
Special notes:
If the fault is present:
–the EOBD (European On Board Diagnostic) warning light is lit,
– the EGR function is inhibited,
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
CO
NOTESNone.
Check the condition of the EGR valve (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2,
Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1460 or 169).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Measure the resistance between connections 3VP and 3VQ of component 1460 or 169.
If the resistance of the EGR valve is greater than 400 Ω, replace the valve.
After replacement, run command SC036 Reinitialise programming and select EGR valve to reinitialise the EGR
valve offsets.
EDC16CP33_V18_DF272 / EDC16CP33_V1C_DF272 / EDC16CP33_V54_DF272 / EDC16CP33_V20_DF272 / EDC16CP33_V58_DF272 /
EDC16CP33_V5C_DF272 / EDC16CP33_V24_DF272 / EDC16CP33_V04_DF272 / EDC16CP33_V08_DF272 / EDC16CP33_V44_DF272 /
EDC16CP33_V4C_DF272 / EDC16CP33_V34_DF272 / EDC16CP33_V38_DF272 / EDC16CP33_V74_DF272 / EDC16CP33_V28_DF272 /
EDC16CP33_V62_DF272 / EDC16CP33_V26_DF272 / EDC16CP33_V60_DF272
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-181
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.
V12 MR-372-J84-13B300$073.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF272
CONTINUED 1
Check the continuity of the following connections:
•3VP between components 120 and 1460 or 169,
•3VQ between components 120 and 1460 or 169.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.
CC.0
CC.1
NOTESNone.
Check the condition of the EGR valve (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2,
Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1460 or 169).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Measure the resistance between connections 3VP and 3VQ of component 1460 or 169.
If the resistance of the EGR valve is less than 1 Ω or greater than 400 Ω, replace the EGR valve.
After replacement, run command SC036 Reinitialise programming and select EGR valve to reinitialise the EGR
valve offsets.
Check the insulation from + 12 V of the following connections:
•3VP between components 120 and 1460 or 169,
•3VQ between components 120 and 1460 or 169.
Check the insulation to earth of the following connections:
•3VP between components 120 and 1460 or 169,
•3VQ between components 120 and 1460 or 169.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring,
otherwise replace the wiring.
If the fault is still present, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74