2011 RENAULT SCENIC Engine And Peripherals EDC16C36 Workshop Manual

13B-105V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF062
PRESENT
OR
STOREDMISFIRING ON CYLINDER 4
1.DEF: Above max threshold
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– engine speed is between idling speed and 1050 rpm, PR055 Engine speed
–PR064 Coolant temperature ≥ 50°C.
Priorities when dealing with a number of faults:
Apply the interpretation of faults DF029 CYLINDER 4 INJECTOR CONTROL
CIRCUIT and DF249 Injector control first if they are present or stored.
Special notes:
Check that the stored injector codes are consistent with those engraved on each
injector. If not, run command SC002 Enter injector codes and follow the procedure.
After replacing an injector, run commands SC002 Enter injector codes and SC036
Reinitialise programming, follow the procedures.
IMPORTANT
Possible absence of combustion on one cylinder even though the injector is properly
fed.
Cylinder no. 1 is located at the timing end.
Do not disconnect the injectors when the engine is running.
When removing or refitting an injector, follow the cleanliness and safety instructions
(see MR 364 (Mégane) or 370 (Scénic), Mechanical, 13B, Diesel injection, Diesel
injector: Removal - Refitting).
EDC16C36_V44_DF062/EDC16C36_V4C_DF062/EDC16C36_V48_DF062/EDC16C36_V50_DF062/EDC16C36_V54_DF062/
EDC16C36_V58_DF062
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-106V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF062
CONTINUED
DF062 appears on the diagnostic tool when the engine management computer has detected a fault during the
combustion phase several times in succession.
Several components may be responsible:
– the piston rings,
– the piston,
– the valves,
– the injector,
– the heater plug sealing.
If the fault is present:
– remove the injector concerned,
– if there is no obvious fault in the way the injector has been fitted (notably the injector washer), swap the injector
with another from the engine.
– Run commands SC002 Enter injector codes and SC036 Reintialise programming and follow the procedures.
– Restart the engine.
– If the injector concerned produces another combustion misfire in its new position, replace it.
If the fault is stored:
check that no customer complaint has been declared; clear the fault and carry out a road test.
If the fault is still present, apply test 10: Incorrect injector operation.
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-107V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF065
PRESENT
OR
STOREDCOMBUSTION MISFIRES
1.DEF: Above max threshold
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– engine speed is between idling speed and 1050 rpm PR055 Engine speed,
– a coolant temperature ≥ 50°C PR064 Coolant temperature.
Priorities when dealing with a number of faults:
DF249 Injector control, present or stored,
DF026 Injector 1 control circuit, present or stored,
DF027 Injector 2 control circuit, present or stored,
DF028 Injector 3 control circuit, present or stored,
DF029 Injector 4 control circuit, present or stored.
IMPORTANT
When removing or refitting an injector, observe the cleanliness and safety instructions
(see MR 364 (Mégane) or 370 (Scénic), Mechanical, 13B, Diesel injection, Diesel
injector: Removal - Refitting).
IMPORTANT
Possible absence of combustion on one cylinder even though the injector is properly
fed.
Do not disconnect the injectors when the engine is running.
EDC16C36_V44_DF065/EDC16C36_V4C_DF065/EDC16C36_V48_DF065/EDC16C36_V50_DF065/EDC16C36_V54_DF065/
EDC16C36_V58_DF065
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-108V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF065
CONTINUED
DF065 appears on the diagnostic tool when the engine management computer has detected a fault during the
combustion phase several times in succession.
Several components may be responsible:
– the piston rings,
– the piston,
– the valves,
– the injector,
– the heater plug sealing.
Check that the stored injector codes are consistent with those engraved on each injector. If not, run command
SC002 Enter injector codes, and follow the procedure.
When dealing with a number of misfiring faults, check the fuel conformity by running test 11 Diesel fuel
conformity check.
Check the engine compressions.
Carry out the necessary repairs.
If the fault is still present, apply test 10: Incorrect injector operation.
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-109V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF069
PRESENT
OR
STOREDIMPACT DETECTED SIGNAL
1.DEF: Impact stored by the injection computer
NOTESConditions for applying the fault finding procedure to stored faults:
Only apply the interpretation of this fault if the fault is present and the vehicle will not
start.
Special notes:
The fault appears when the injection computer receives a frontal impact signal from the
Airbag computer via the multiplex network.
As soon as the injection computer receives this signal:
– engine operation is prohibited,
–the level 2 warning light is lit.
Use bornier Elé. 1681 or Elé. 1590 for any operation on the injection computer
connectors.
If the vehicle has been involved in an accident:
Carry out any necessary repairs,
– clear the fault,
– switch off the ignition,
–wait for 1 minute,
– switch on the ignition.
If the fault does not reappear, end of fault finding procedure.
If the fault recurs, run fault finding on the AIRBAG computer.
If the vehicle has not been involved in an accident:
Run fault finding on the AIRBAG computer (see 88C, Airbag and pretensioner).
EDC16C36_V44_DF069/EDC16C36_V4C_DF069/EDC16C36_V48_DF069/EDC16C36_V50_DF069/EDC16C36_V54_DF069/
EDC16C36_V58_DF069
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-110V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF086
PRESENT
OR
STOREDCOOLANT PUMP RELAY CONTROL CIRCUITCC.0: Short circuit to earth
CC.1: Short circuit to + 12 V
CO: Open circuit
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the ignition has been switched off and after waiting
for 1 minute,
Or after an actuator control AC195 Electric coolant pump.
Special notes:
The control relay is located in the engine connection unit.
If the fault is present:
– turbocharger reliability compromised,
– coolant reliability compromised,
–the level 1 warning light is lit.
Use bornier Elé. 1681 or Elé. 1590 for any operation on the
injection computer connectors.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
EDC16C36_V44_DF086/EDC16C36_V4C_DF086/EDC16C36_V48_DF086/EDC16C36_V50_DF086/EDC16C36_V54_DF086/
EDC16C36_V58_DF086
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

1 3 B - 111V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF086
CONTINUED
CO.0NOTESNone.
Check the condition of the electric coolant pump relay connector (A 20A) (see Wiring Diagram Technical Note
for Mégane II ph2, Scénic II ph2, component code 573) and check that it operates correctly.
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 insulation, continuity and the absence of interference resistance on the following connections:
– connection codes 32A and 32B between components 688 and 1337,
– connection codes 47Q and 115A between components 688 and 120.
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 for connection code M earth on the turbocharger bearing coolant pump component code 369.
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.
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-112V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF091
PRESENT
OR
STOREDVEHICLE SPEED SIGNAL
1.DEF: Vehicle speed too high.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
Special notes:
– engine torque limited,
– the cruise control/speed limiter function is inhibited,
The vehicle speed signal sent by the ABS computer to the injection computer is greater
than the threshold defined in the calibration.
Use bornier Elé.1681 for any operations on the injection computer connectors.
Check the condition of the ABS computer connector (see Wiring Diagram Technical Note, Mégane II ph2,
Scénic II ph2, component Code 118 or 1094).
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.
Run full fault finding on the ABS (see 38C Anti-lock braking system).
Repair if necessary.
Run complete fault finding on the multiplex network (see 88B, Multiplexing).
Repair if necessary.
If the fault is still present, contact the Techline.
EDC16C36_V44_DF091/EDC16C36_V4C_DF091/EDC16C36_V48_DF091/EDC16C36_V50_DF091/EDC16C36_V54_DF091/
EDC16C36_V58_DF091
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