13B-47V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF004
CONTINUED 2
Check the condition of the turbocharging pressure sensor connector (see Wiring Diagram Technical Note,
Mégane II ph2, Scénic II ph2, component code 1071).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II ph2, Scénic II ph2, component code 120).
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Check the insulation in relation to + 12 V or + 5 V (computer feed) of the following connections:
– connection code 3LN between components 120 and 1071,
– Connection code 3LP between components 120 and 1071.
Check the continuity of the following connection:
– connection code 3LN between components 120 and 1071.
If 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 turbocharger pressure sensor.
1.DEF
NOTESNone.
Check the condition of the turbocharging pressure sensor connector (see Wiring Diagram Technical Note,
Mégane II ph2, Scénic II ph2, component code 1071).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II ph2, Scénic II ph2, component code 120).
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Perform fault finding procedure on parameter PR041 Turbocharging pressure.
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-48V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF007
PRESENT
OR
STOREDRAIL PRESSURE SENSOR CIRCUITCC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
1.DEF: Above max threshold
2.DEF: Below minimum threshold
NOTESPriorities when dealing with a number of faults:
Deal with fault DF013 Sensor feed voltage no. 3 first, if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
If the fault is present:
– The rail pressure is in defect mode PR038 rail pressure≤ 1150 bar,
– engine torque limited,
– the engine stops.
Use bornier Elé.1681 for any operations on the injection computer connectors.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
EDC16C36_V44_DF007/EDC16C36_V4C_DF007/EDC16C36_V48_DF007/EDC16C36_V50_DF007/EDC16C36_V54_DF007/
EDC16C36_V58_DF007
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-49V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF007
CONTINUED 1
CC.0NOTESSpecial note:
The engine stops when this fault appears.
The level 2 warning light is on.
Check the condition of the rail pressure sensor connector (see Wiring Diagram Technical Note, Mégane II ph2,
Scénic II ph2, component code 1032).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II ph2, Scénic II ph2, component code 120).
If the connector(s) is/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 insulation to earth of the following connections:
– connection code 3LX between components 120 and 1032,
– connection code 3LY between components 120 and 1032.
Check the continuity of the following connection:
– connection code 3LZ between components 120 and 1032.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the wiring of the particle filter downstream temperature sensor, component code 1288, is present (with or without
the sensor being present), check the electrical insulation in relation to + 12 V between the following connections:
•3XU between components 120 and 1288,
•3TG between components 120 and 1288.
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.
If the fault is still present, replace the turbocharger pressure sensor.
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-50V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF007
CONTINUED 2
CO.1NOTESSpecial note:
The engine stops when this fault appears.
The level 2 warning light is on.
Check the condition of the rail pressure sensor connector (see Wiring Diagram Technical Note, Mégane II ph2,
Scénic II ph2, component code 1032).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
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 of the following connections:
– connection code 3LZ between components 120 and 1032,
– connection code 3LX between components 120 and 1032,
– connection code 3LY between components 120 and 1032.
Check the insulation in relation to + 12 V or + 5 V (computer feed) of the following connections:
– connection code 3LX between components 120 and 1032,
– connection code 3LY between components 120 and 1032.
If 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 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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-51V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF007
CONTINUED 3
1.DEF
2.DEFNOTESThe fault is declared present or stored after an attempt to
start or after starting, with the engine cold, several hours
after the last trip (the difference in the coolant temperature
from the last engine stop and the present attempt to start
must be at least 60°C).
The level 1 warning light is on.
Check the condition of the rail pressure sensor connector (see Wiring Diagram Technical Note, Mégane II ph2,
Scénic II ph2, component code 1032).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
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 that there are no external diesel leaks from the high pressure fuel circuit.
Check the continuity and for the absence of interference resistance on the following connections:
– connection code 3LZ between components 120 and 1032,
– connection code 3LX between components 120 and 1032,
– connection code 3LY between components 120 and 1032.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
With the ignition on and the engine stopped for over 1 minute:
View parameter PR038 Rail pressure.
– If the pressure is below 90 bar, the sensor is in order.
– If the pressure is above 90 bar, contact the Techline.
If the fault is still present, contact the Techline.
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-52V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF011
PRESENT
OR
STOREDSENSOR FEED VOLTAGE NO. 1
1.DEF: Above max threshold
2.DEF: Below minimum threshold
NOTESConditions for applying the fault finding procedure to stored faults:
– The fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
If the fault is present,
– thermoplunger cut-off,
– engine torque limited,
– the cruise control/speed limiter function is switched off,
– the EGR function is inhibited by the engine management computer,
– safe mode on the pedal sensor: use the value of gang 2 instead of gang 1.
The level 1 and European On Board Diagnostic warning lights are illuminated.
Use bornier Elé. 1681 for all operations on the connectors of the engine management
computer.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
EDC16C36_V44_DF011/EDC16C36_V4C_DF011/EDC16C36_V48_DF011/EDC16C36_V50_DF011/EDC16C36_V54_DF011/
EDC16C36_V58_DF011
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-53V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF011
CONTINUED 1
1.DEFNOTESNone.
Note:
Supply no.1 is for the following component:
– pedal sensor (gang 1),
– turbocharger pressure sensor.
Measure the feed voltage on the following sensors:
– Connection code 3LR of component 921.
– Connection code 3LQ of component 1071.
If the voltage is more than + 5.1 V, disconnect the sensor connectors one by one.
If, after disconnecting the pedal sensor, the voltage returns to normal,
Check the insulation against + 12 V of the following connection:
– Connection code 3LR between components 120 and 921.
If, after disconnecting the turbocharging pressure sensor, the voltage returns to normal,
Check the insulation against + 12 V of the following connection:
– connection code 3LQ, between components 120 and 1071.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Clear the faults created by the multiple disconnections.
Carefully examine the engine management computer connections (for conductive particles, bent pins).
If the fault is still present, contact the Techline.
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
13B-54V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF011
CONTINUED 2
2.DEFNOTESNone.
Note:
Supply no.1 is for the following component:
– pedal sensor (gang 1),
– turbocharger pressure sensor.
Measure the feed voltage on the following sensors:
– Connection code 3LR of component 921.
– Connection code 3LQ of component 1071.
If the voltage is less than + 4.9 V, disconnect the sensor connectors one by one.
If, after disconnecting the pedal sensor, the voltage returns to normal.
check the insulation to earth of the following connection:
– Connection code 3LR between components 120 and 921.
If, after disconnecting the turbocharging pressure sensor, the voltage returns to normal.
check the insulation to earth of the following connection:
– connection code 3LQ, between components 120 and 1071.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
Clear the faults created by the multiple disconnections.
Carefully examine the engine management computer connections (for conductive particles, bent pins).
If the fault is still present, contact the Techline.
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 using the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58