13B-179
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
DF268
CONTINUED
Check the condition of the injector no. 4 connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 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.
Check the continuity and absence of interference resistance of the following connections:
•3KZ between components 120 and 196,
•3CU between components 120 and 196.
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
13B-182
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 2
CCNOTESNone.
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 between 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.
1.DEF
NOTESSpecial notes:
This fault appears when the computer control section has
overheated.
Priorities when dealing with a number of faults:
Deal with CO, CC.O, CC.1 and CC first if they are present or
stored.
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-183
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
DF293
PRESENT
OR
STOREDWATER IN DIESEL FUEL SENSOR
1.DEF: Open circuit on the line or water present in the diesel fuel
NOTESIMPORTANT:
Please observe the cleanliness guidelines and safety advice.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Check that there is no water in the fuel filter.
Bleed the fuel filter and the low pressure diesel circuit if necessary.
Start the engine and wait at least 1 minute to confirm the repair.
If the fault was stored but not present, carry out a road test (see Note).
If the fault is still present:
Check the continuity and absence of interference resistance on the following connection:
•3WT between the components 120 and 414.
Check the + 12 V after relay supply to the water detection sensor on the following connection:
•3FB of component 414.
Check that the earth is in order on connection NT or M of component 414.
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.
Start the engine and wait at least 1 minute to confirm the repair.
If the fault is still present, check the conformity of the fuel used:
– Check that the fuel tank has been filled correctly.
–Run Test 12 Fuel conformity check.
– If the diesel fuel is not correct:
– Replace the diesel fuel.
– Change the diesel filter.
– Bleed the low pressure diesel circuit.
EDC16CP33_V18_DF293 / EDC16CP33_V1C_DF293 / EDC16CP33_V54_DF293 / EDC16CP33_V20_DF293 / EDC16CP33_V58_DF293 /
EDC16CP33_V5C_DF293 / EDC16CP33_V24_DF293 / EDC16CP33_V04_DF293 / EDC16CP33_V08_DF293 / EDC16CP33_V44_DF293 /
EDC16CP33_V4C_DF293 / EDC16CP33_V34_DF293 / EDC16CP33_V38_DF293 / EDC16CP33_V74_DF293 / EDC16CP33_V28_DF293 /
EDC16CP33_V62_DF293 / EDC16CP33_V26_DF293 / EDC16CP33_V60_DF293
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-184
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
DF293
CONTINUED
If none of these checks reveal any faults:
– Replace the water detection sensor.
– Clear the fault.
Start the engine and wait at least 1 minute to confirm the repair.
Note:
When the water level in the fuel filter unit is below the sensor's electrodes, some driving conditions (cornering,
gradients) may result in water being detected (in fact, the sensor's off-centre position in the fuel filter unit, combined
with the driving conditions, causes water to be detected).
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-185
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
DF297
PRESENT
OR
STOREDPRESSURE SENSOR
1. DEF: Absent
NOTESConditions for applying fault finding procedures 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:
– particle filter regeneration is inhibited,
– blue/white smoke and black particles coming from the exhaust,
– the EOBD (European On Board Diagnostic) warning light will come on after three
consecutive driving cycles (starting + 5 seconds + switch off the ignition and wait
40 seconds).
–The level 1 warning light is lit (for Vdiag 20, 24, 58, 5C, 26, 28, 60 and 62).
Priorities when dealing with a number of faults:
– DF315 Particle filter diff. pressure sensor if present or stored.
– DF717 Particle filter upstream pressure if it is present or stored.
NOTE:
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, Laguna
II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1290).
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_DF297 / EDC16CP33_V1C_DF297 / EDC16CP33_V54_DF297 / EDC16CP33_V20_DF297 / EDC16CP33_V58_DF297 /
EDC16CP33_V5C_DF297 / EDC16CP33_V24_DF297 / EDC16CP33_V28_DF297 / EDC16CP33_V62_DF297 / EDC16CP33_V26_DF297 /
EDC16CP33_V60_DF297
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
13B-187
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
DF304
PRESENT
OR
STOREDEGR BY-PASS CIRCUITCO: Open circuit
CC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault reappears when the ignition is switched on.
Special notes:
Use bornier Elé. 1681 for all operations on the engine management computer
connectors.
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 bypass solenoid valve connector (see Wiring Diagram Technical Note, Laguna
II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1301).
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 3FB and 3TP of component 1301.
If the resistance is greater than 1 kΩ or less than 6 Ω, replace the EGR bypass solenoid valve.
Check the continuity of the following connection:
•3TP between components 120 and 1301.
Check the + 12 V after relay supply to the EGR bypass solenoid valve on the following connection:
•3FB of component 1301.
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, replace the EGR by-pass solenoid valve.
EDC16CP33_V18_DF304 / EDC16CP33_V1C_DF304 / EDC16CP33_V54_DF304 / EDC16CP33_V20_DF304 / EDC16CP33_V58_DF304 /
EDC16CP33_V5C_DF304 / EDC16CP33_V24_DF304 / EDC16CP33_V04_DF304 / EDC16CP33_V08_DF304 / EDC16CP33_V44_DF304 /
EDC16CP33_V4C_DF304 / EDC16CP33_V34_DF304 / EDC16CP33_V38_DF304 / EDC16CP33_V74_DF304 / EDC16CP33_V28_DF304 /
EDC16CP33_V62_DF304 / EDC16CP33_V26_DF304 / EDC16CP33_V60_DF304
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74