Page 127 of 510

13B-127
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
DF065
PRESENT
OR
STOREDCOMBUSTION MISFIRES
1.DEF: Combustion misfires detected on several cylinders.
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:
– DF052 Injector control circuit
– DF026 Cylinder 1 injector control circuit
– DF027 Cylinder 2 injector control circuit
– DF028 Cylinder 3 injector control circuit
– DF029 Cylinder 4 injector control circuit
IMPORTANT:
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).
Perform TEST 2 Resolving misfires.
If the fault is still present, contact the Techline.
EDC16CP33_V18_DF065 / EDC16CP33_V1C_DF065 / EDC16CP33_V54_DF065 / EDC16CP33_V20_DF065 / EDC16CP33_V58_DF065 /
EDC16CP33_V5C_DF065 / EDC16CP33_V24_DF065 / EDC16CP33_V04_DF065 / EDC16CP33_V08_DF065 / EDC16CP33_V44_DF065 /
EDC16CP33_V4C_DF065 / EDC16CP33_V34_DF065 / EDC16CP33_V38_DF065 / EDC16CP33_V74_DF065 / EDC16CP33_V28_DF065 /
EDC16CP33_V62_DF065 / EDC16CP33_V26_DF065 / EDC16CP33_V60_DF065
Page 170 of 510

13B-170
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
DF249
PRESENT
OR
STOREDINJECTOR CONTROL
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault becomes present after:
– the ignition is switched on,
– the engine is started.
Priorities when dealing with a number of faults:
– DF046 Battery voltage,
– DF026 Cylinder 1 injector control circuit,
– DF027 Cylinder 2 injector control circuit,
– DF028 Cylinder 3 injector control circuit,
– DF029 Cylinder 4 injector control circuit.
Special notes:
If the fault is present:
– in certain cases, the level 2 warning light is lit and the engine is stopped.
Use bornier Elé.1681 for all operations on the engine management computer.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
This fault appears when the computer detects a fault on the injector control section.
Check the condition of the injector connectors (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis
ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component codes 193, 194, 195, 196).
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_DF249 / EDC16CP33_V1C_DF249 / EDC16CP33_V54_DF249 / EDC16CP33_V20_DF249 / EDC16CP33_V58_DF249 /
EDC16CP33_V5C_DF249 / EDC16CP33_V24_DF249 / EDC16CP33_V04_DF249 / EDC16CP33_V08_DF249 / EDC16CP33_V44_DF249 /
EDC16CP33_V4C_DF249 / EDC16CP33_V34_DF249 / EDC16CP33_V38_DF249 / EDC16CP33_V74_DF249 / EDC16CP33_V28_DF249 /
EDC16CP33_V62_DF249 / EDC16CP33_V26_DF249 / EDC16CP33_V60_DF249
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 174 of 510

13B-174
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
DF266
PRESENT
OR
STOREDINJECTOR No. 2
1.DEF: Internal electronic fault
NOTESPriorities when dealing with a number of faults:
–DF027 Cylinder 2 injector control circuit.
Conditions for applying the fault finding procedure to a stored fault:
If the fault becomes present after:
– the engine is started,
– a road test.
IMPORTANT:
– Cylinder no. 1 is located at the timing end.
– Please observe the cleanliness guidelines and safety advice.
– Do not disconnect the injector connections with the engine running as this may
damage the engine.
Special notes:
If the fault is present:
– reduced driving pleasure,
– injector is not controlled or incorrectly controlled.
Use bornier Elé.1681 for all operations on the engine management computer.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Apply Test 10 Poor injector operation.
EDC16CP33_V18_DF266 / EDC16CP33_V1C_DF266 / EDC16CP33_V54_DF266 / EDC16CP33_V20_DF266 / EDC16CP33_V58_DF266 /
EDC16CP33_V5C_DF266 / EDC16CP33_V24_DF266 / EDC16CP33_V04_DF266 / EDC16CP33_V08_DF266 / EDC16CP33_V44_DF266 /
EDC16CP33_V4C_DF266 / EDC16CP33_V34_DF266 / EDC16CP33_V38_DF266 / EDC16CP33_V74_DF266 / EDC16CP33_V28_DF266 /
EDC16CP33_V62_DF266 / EDC16CP33_V26_DF266 / EDC16CP33_V60_DF266
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 236 of 510

13B-236
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$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF891
PRESENT
OR
STOREDGROUP 1 INJECTORS FEED
CC.0: Short circuit to earth
1.DEF: Faulty connections
NOTESGroup 1 corresponds to injectors 1 and 2.
Conditions for applying the fault finding procedure to a stored fault:
If the fault becomes present after:
– the ignition is switched on,
– the engine is started.
Priorities when dealing with a number of faults:
– DF026 Cylinder 1 injector control circuit
– DF027 Cylinder 2 injector control circuit.
Special notes:
If the fault is present:
– particle filter regeneration is inhibited,
–the level 2 warning light will be lit,
– the engine stops.
Use bornier Elé.1681 for all operations on the engine management computer.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Check the condition of the injector connectors (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis
ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component codes 193, 194).
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_DF891 / EDC16CP33_V1C_DF891 / EDC16CP33_V54_DF891 / EDC16CP33_V20_DF891 / EDC16CP33_V58_DF891 /
EDC16CP33_V5C_DF891 / EDC16CP33_V24_DF891 / EDC16CP33_V04_DF891 / EDC16CP33_V08_DF891 / EDC16CP33_V44_DF891 /
EDC16CP33_V4C_DF891 / EDC16CP33_V34_DF891 / EDC16CP33_V38_DF891 / EDC16CP33_V74_DF891 / EDC16CP33_V28_DF891 /
EDC16CP33_V62_DF891 / EDC16CP33_V26_DF891 / EDC16CP33_V60_DF891
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74