2011 RENAULT SCENIC Engine And Peripherals EDC16C36 Workshop Manual

13B-81V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF038
CONTINUED
2.DEFNOTESPriorities when dealing with a number of faults:
Deal with faults DF047 Computer supply voltage and
DF046 Battery voltage first, if they are present or stored.
If either of faults DF047 Computer supply voltage or DF046 Battery voltage is present or stored, clear the fault
after dealing with DF046 Battery voltage or DF047 Computer supply voltage.
If the fault is still present, contact the Techline.
3.DEF
NOTESNone.
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-82V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF046
PRESENT
OR
STOREDBATTERY VOLTAGE
1.DEF: Above max threshold
2.DEF: Below minimum threshold
3.DEF: Initialisation not done.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– starting the engine,
– a road test.
Special notes:
– thermoplungers cut-off,
– engine torque limited,
Computer operating voltage: 6 V < operating voltage < 16.5 V.
It is then not possible to start the engine.
Use bornier Elé.1681 for any operations on the injection computer connectors.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
1.DEF
NOTESNone.
Check the charging circuit, apply Technical Note 6014A Checking the charging circuit.
Carry out the necessary repairs.
EDC16C36_V44_DF046/EDC16C36_V4C_DF046/EDC16C36_V48_DF046/EDC16C36_V50_DF046/EDC16C36_V54_DF046/
EDC16C36_V58_DF046
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-83V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF046
CONTINUED
2.DEFNOTESUse the Wiring Diagram Technical Notes for the vehicle.
Reminder of computer operating voltage: 6 V < operating voltage < 16.5 V
Using a voltmeter, take a reading of the battery voltage at its terminals.
– Compare the voltage obtained with the value displayed on the diagnostic tool PR074 Battery voltage.
If it there is no difference (less than 1 V):
Recharge and test the battery and replace it if it is defective.
Next check the charge circuit.
If there is a difference (greater than 1 V):
– Check the tightness and the condition of the battery terminals.
– Using the appropriate wiring diagram:
Check the continuity and absence of interference resistance on the following connections:
– Connection code 3FB between components 597 and 120.
– Connection code AP29 between components 597 and 120.
– Connection code NT between components NT and 120.
(Check the four NT connections)
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
3.DEF
NOTESOnly deal with this fault when it is present.
Switch off the ignition and wait for the diagnostic tool message (maximum time 8minutes) Communication lost
with computer: EDC16 C36, check the tool connection and computer power supply before switching the
ignition back on.
Switch on the ignition again and check if the fault is still present.
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-84V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF047
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF: Voltage outside permitted range of values
NOTESConditions for applying the fault finding procedure to a stored fault:
– The fault is declared after the ignition has been switched on
Special notes:
– impossible to start the engine.
Use bornier Elé.1681 for any operations on the injection computer connectors.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
1.DEF
NOTESImpossible to start.
Check the continuity and absence of interference resistance on the following connection:
– Connection code AP29 between components 597 and 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 condition of the injection control unit supply relay (R08) in the engine fuse and relay box (no bad
contacts or oxidation on the relay mounting clips).
If there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair) repair the wiring, otherwise replace it.
If the fault does not recur, start the engine and wait 1 min.
Carry out a road test and check the system faults.
If there are no faults, fault finding is complete.
If the fault is still present, contact the Techline.
EDC16C36_V44_DF047/EDC16C36_V4C_DF047/EDC16C36_V48_DF047/EDC16C36_V50_DF047/EDC16C36_V54_DF047/
EDC16C36_V58_DF047
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-85V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF051
PRESENT
OR
STOREDCRUISE CONTROL/SPEED LIMITER
1.DEF: Cruise control or speed limiter fault.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– a road test with activation of the cruise control/speed limiter function.
– the engine is started.
Special notes:
If the fault is present, the cruise control/speed limiter is switched off.
Use bornier Elé.1681 for any operations on the injection computer connectors.
1.DEF
NOTESOrder of priority for a combination of faults:
Deal with faults DF196 Pedal sensor circuit gang 1 and
DF198 Pedal sensor circuit gang 2 first if they are stored.
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.
If fault DF051 is declared present, consult the interpretation of status ET415 Cruise control/speed limiter
deactivation.
Check that by pressing the buttons the statuses change and that, with the ignition switched on, all the values are
correct.
If the fault is still present, contact the Techline.
EDC16C36_V44_DF051/EDC16C36_V4C_DF051/EDC16C36_V48_DF051/EDC16C36_V50_DF051/EDC16C36_V54_DF051/
EDC16C36_V58_DF051
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-86V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF053
PRESENT
OR
STOREDRAIL PRESSURE REGULATION FUNCTION1.DEF: Above maximum threshold.
2.DEF: Negative loop deviation.
3.DEF: Positive loop deviation.
4.DEF: Below minimum threshold.
NOTESOrder of priority for a combination of faults:
Deal with fault DF643 Rail pressure regulator circuit first if it is present or stored.
Conditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the engine is started,
– a road test.
Special notes:
If the fault is present:
– engine torque limited for 2.DEF/3.DEF,
–the level 1 warning light comes on for 2DEF/3.DEF.
–the level 2 warning light comes on for 1.DEF/3.DEF/4.DEF,
– engine stops for 1.DEF/3.DEF/4.DEF.
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_DF053/EDC16C36_V4C_DF053/EDC16C36_V48_DF053/EDC16C36_V50_DF053/EDC16C36_V54_DF053/
EDC16C36_V58_DF053
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-87V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF053
CONTINUED
In the event of rail overpressure:
Check the operation of the injectors (see Test 10 Incorrect injector operation).
Display parameter PR038 Rail pressure and refer to the conformity check to check the conformity of the operating
values.
If these checks do not indicate any abnormality and if the fault persists, replace the injection pump.
In the event of rail vacuum pressure:
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator. Display
parameter PR038 Rail pressure and refer to the conformity check to check the conformity of the operating values.
Check the priming of the low-pressure diesel circuit.
Check the conformity of the diesel filter connections.
Check the condition of the filter (clogging and water saturation).
Check that there are no air bubbles between the filter and the high pressure pump.
Check the seal of the low and high pressure diesel circuits (visual checks, odour, etc.), pump body, overpressure
valve, pipes, rail and injector unions, injector wells, etc.
Check the operation of the injectors (see Test 10 Incorrect injector operation).
Carry out the necessary operations.
If the fault is still present, replace the injection pump.
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-88V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF054
PRESENT
OR
STOREDTURBOCHARGING SOLENOID VALVE CONTROL CIRCUITCO: Open circuit
CC.1: short-circuit to + 12 V
CC.0: Short circuit to earth
1.DEF: Internal electronic fault
NOTESPriorities when dealing with a number of faults:
Deal with fault DF046 Battery voltage first, if it is present or stored.
Conditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the ignition is switched on.
– starting the engine,
– a road test,
– actuator command AC004 Turbocharging solenoid valve.
Special notes:
If the fault is present:
– turbocharging is no longer authorised,
– the EGR function is inhibited,
–the level 1 and European On Board Diagnostic warning lights are lit.
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_DF054/EDC16C36_V4C_DF054/EDC16C36_V48_DF054/EDC16C36_V50_DF054/EDC16C36_V54_DF054/
EDC16C36_V58_DF054
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