2011 RENAULT SCENIC ECU

13B-3V9 MR-372-J84-13B450$010.mif
DIESEL INJECTION
Fault finding – Introduction13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Faults
Faults are declared present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but are not diagnosed within the current context).
The present or stored fault status must be considered, when the diagnostic tool is used after switching on the +
after ignition feed (without operating the system components).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the Notes section.
If the fault is confirmed when the instructions are applied, the fault is present. Deal with the fault.
If the fault is not confirmed, check:
– the electrical lines which correspond to the fault,
– the connectors for this connection,
– the resistance of the faulty component,
– the condition of the wires.
Conformity check
The purpose of the conformity check is to check data that does not produce a fault on the diagnostic tool if the data
is inconsistent. Therefore, this stage is used to:
– carry out fault finding on faults that do not have a fault display, and which may correspond to a customer complaint.
– check that the system is operating correctly and that there is no risk of a fault recurring after repair.
The conformity check is a fault finding procedure carried out using the interpretation of statuses and parameters.
If a status does not function normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page (see interpretation of statuses and parameters).
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be dealt with by
customer complaints
A synopsis of the general procedure to follow is provided on the following page in the form of a flow chart.

13B-5V9 MR-372-J84-13B450$010.mif
DIESEL INJECTION
Fault finding – Introduction13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring may temporarily clear the cause of a fault.
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the protectors, insulation, and routing of the wiring, as well as the mountings.
Physical inspection
When working on wiring, use the diagnostic tool to highlight a change in the status of the faults, from a "stored"
fault to a "present" fault, or use the multimeter to view the status changes.
Make sure that the connectors are firmly secured.
Apply light pressure to the connectors.
Twist the wiring harness.
Checking insulation to earth
This check is carried out by measuring the voltage (multimeter in voltmeter mode) between the suspect connection
and the 12 V or 5V. The correct measured value is 0V.
Checking insulation in relation to + 12 V or + 5 V
This check is carried out by measuring the voltage (multimeter in voltmeter mode) between the suspect connection
and the earth. In the first instance, the earth may be taken on the chassis. The correct measured value is 0V.
Continuity check
A continuity check is carried out by measuring the resistance (multimeter in ohmmeter mode), with the connectors
disconnected at both ends. The expected result is: 1 Ω ± 1 Ω for each connection. The line must be fully checked,
and the intermediate connections are only included in the method if this saves time during the fault finding
procedure. The continuity check on the multiplex lines must be carried out on both wires. The measured value
should be 1 Ω ± 1 Ω.
Power supply check
This check can be carried out using a test light (21 W or 5 W depending on the maximum permissible load).

13B-30V9 MR-372-J84-13B450$080.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
PROCEDURE:
Before replacing or reprogramming the computer:
–Select SC003 Save computer data,
– if the following message appears: a saved file exists; do you want to overwrite this data?: (this file corresponds
to the last save carried out on the tool)
–select "YES".
When the save has been performed, replace the computer or carry out the programming then proceed to the next
step.
After replacing or reprogramming the computer:
–Select SC001 Enter saved data, then follow the instructions given by the diagnostic tool,
– if the VIN is not entered (see Computer identification on the main screen),
–select VP010 Enter VIN,
When both these commands have finished:
– Switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes) Communication lost
with computer: EDC16 C36, check the tool connection and computer power supply before switching the
ignition back on.
(The powerlatch duration depends on the coolant temperature and activation time of the turbocharger
coolant pump. This operation finishes when the pump is deactivated.)
– then check the system faults, and clear any stored faults,
– if there are faults, deal with the present faults,
– clear the faults from the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
End of the procedure.IMPORTANT
– The injection computer retains the immobiliser code for life.
– The system has no security code.
– It is forbidden to perform tests with computers borrowed from the Parts Department or from another vehicle
which must then be returned.
– These computers are hard-coded.
– If the injection computer appears to be faulty, contact the Techline and refer to the fault finding log.

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-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-120V9 MR-372-J84-13B450$102.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF120
PRESENT
OR
STOREDENGINE SPEED SENSOR SIGNAL
1.DEF: Engine speed signal interference, broken tooth on flywheel or
engine speed sensor internal fault
2.DEF: No engine speed signal, or interference affecting the engine speed signal.
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– when an attempt is made to start the engine,
– starting the engine,
– a road test.
Special notes:
The engine speed sensor is consistent with the camshaft sensor.
If the fault is present,
–the level 2 warning light will be lit,
– engine stops or impossible to start,
– engine cut-off,
– turbocharger cut-off,
Use bornier Elé.1681 for any operations on the injection computer connectors.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Check the condition of the engine speed sensor connector (see Wiring Diagram Technical Note, Mégane II ph2,
Scénic II ph2, component code 149).
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 the sensor is securely attached.
Measure the resistance of the engine speed sensor between the following connections:
– Connection code 3BG of component 149.
– Connection code 3BL of component 149.
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 winding resistance is not between 200 Ω and 270 Ω at 20°C, replace the engine speed sensor.
EDC16C36_V44_DF120/EDC16C36_V4C_DF120/EDC16C36_V48_DF120/EDC16C36_V50_DF120/EDC16C36_V54_DF120/
EDC16C36_V58_DF120
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-165
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.
V9 MR-372-J84-13B450$103.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF310
PRESENT
OR
STOREDPARTICLE FILTER UPSTREAM TEMP.* SENSOR
CO.1: Open circuit or short circuit to +12 V
CC.0: Short circuit to earth
NOTESConditions for applying fault finding procedures to stored faults:
The fault becomes present if:
– ignition is on (CC.0),
– following a road test, engine warm (CO.1).
Special notes:
If the fault is present:
– particle filter regeneration is inhibited,
–the level 1 warning light is lit,
–the OBD warning light comes on after three consecutive driving cycles (start
+5 seconds, switch off the ignition and wait 1 minute).
IMPORTANT
The particle filter upstream temperature sensor only measures temperatures
above 50°C.
Use the Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
EDC16C36_V48_DF310/EDC16C36_V50_DF310/EDC16C36_V58_DF310EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58

13B-175
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.
V9 MR-372-J84-13B450$104.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
* diff: differential
DF315
PRESENT
OR
STOREDPARTICLE FILTER DIFF* PRESSURE SENSOR
CO: Open circuit
CC.1: Open circuit or short-circuit on + 12 volts
C0.0: Open circuit or short circuit to earth
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:
–the level 1 warning light is lit,
–the OBD warning light will come on after three consecutive driving cycles (start
+ 5 seconds + switch off the ignition switched and wait 1 minute),
– the particle filter fault finding procedure is inhibited,
– particle filter regeneration is inhibited.
Priorities when dealing with a number of faults:
– DF315 if it is present.
– DF308 "Particle filter clogged" if DF315 is stored and DF308 is present.
– DF011 Sensor supply voltage no. 1 if it is present or stored.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
EDC16C36_V48_DF315/EDC16C36_V50_DF315/EDC16C36_V58_DF315EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58