2011 RENAULT SCENIC ECU

13B-3
MR-372-J84-13B200$036.mif
V13
DIESEL INJECTION
Fault finding – Introduction
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
Faults
Faults are declared as either present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but have not been diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is switched on
after the + after ignition feed (without any system components being active).
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 instructions in the Notes section.
If the fault is confirmed when the instructions in the Notes section are applied, the fault is present. Deal with the
fault
If the fault is not confirmed, check:
– the electrical connections that correspond to the fault,
– the connectors for this connection,
– the resistance of the component detected as faulty,
– the condition of the wires.
Refer to paragraphs 3.1 Checking the wiring and 3.2 Checking the connectors.
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because 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 repairs.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
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 processed by
customer complaints.
A summary of the overall procedure to follow is provided on the following page in the
form of a flow chart.

13B-18
MR-372-J84-13B200$108.mif
V13
DIESEL INJECTION
Fault finding – System operation
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
Temperature warning light/red EMERGENCY STOP (level 2)
This indicator light is used both as an in-operation indicator light and as a system fault warning light. It lights up for
3 seconds after the ignition is switched on (automatic test procedure managed by the instrument panel):
– Continuously or intermittently lit, accompanied by the message Engine overheating:
Indicates engine overheating (the driver is free to choose whether or not to stop the vehicle).
–For Vdiag 50, 58 and 5C: continuously lit, accompanied by the message faulty injection:
Indicates a level 2 fault (in this case, the injection is automatically cut after a few seconds).
The driver should carry out repairs as soon as possible.
–For Vdiag 18, 1C and 20: continuously lit, accompanied by the message Injection fault: stop the engine and by
a bleep, this indicates a level 2 fault.
In that case, the vehicle must be stopped immediately (when traffic conditions allow).
The driver should carry out repairs as soon as possible.
ORANGE OBD excess pollution warning light
An engine symbol accompanied by the message Check emission control.
This warning light comes on if the system has one or more OBD faults.
This warning light is used to alert the driver of any injection faults that could lead to excessive pollution, or if the
EOBD system has been deactivated.
The injection computer requests illumination of the OBD warning light for a present fault only after three consecutive
driving cycles.
If it flashes, reduce the engine speed until the flashing stops.
The driver should carry out repairs as soon as possible.
The 3 second visual inspection when the ignition is switched on (automatic test procedure managed by the
instrument panel) is carried out by the injection computer.
Special particle filter ORANGE warning light or warning message (depending on instrument panel)
– Vdiag 50, 58, 5C:
This warning light or message is used to warn the driver that the particle filter is clogged or a significant number of
failed regenerations while driving due to driving conditions not being favourable for regeneration.
Table of thresholds:
EnginePR383 Weight of soot in the
particle filterPR848 Number of failed
regenerations
Scénic II Mégane IIScénic II Mégane II
F9Q804 Vdiag 5035 35 3
F9Q803 Vdiag 58 and 5C50
7
F9Q804 Vdiag 58 and 5C58 50 7

13B-22
MR-372-J84-13B200$144.mif
V13
DIESEL INJECTION
Fault finding – Replacement of components
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PROCEDURE:
Before replacing or reprogramming the computer:
– Select command SC003 Save computer data,
– if the following message appears: backup file exists, do you want to overwrite it?:
(this file corresponds to the last save carried out on the tool)
–select YES.
When the backup is complete, replace the computer or reprogram, then proceed to the next step.
After replacing or reprogramming the computer:
– Select command SC001 Write saved data, then follow the instructions given by the diagnostic tool,
– if the VIN has not been entered (see "Computer identification" on the main screen), select VP010 Enter VIN,
When both these commands have finished:
–switch off the ignition and wait 1minute before switching the ignition on again,
– then check the system faults, and clear any stored faults,
– otherwise, deal with faults that are present and clear the faults in the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
End of operation.IMPORTANT
Thermoplunger faults are displayed during reprogramming.
– DF032 Thermoplunger 1 relay control circuit,
– DF033 Thermoplunger 2 relay control circuit,
– DF034 Thermoplunger 3 relay control circuit,
– DF238 Thermoplunger 3 relay circuit,
– DF239 Thermoplunger 2 relay circuit,
– DF240 Thermoplunger 1 relay circuit.
In this case, configure the thermoplungers using configuration CF030 Thermoplungers.
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-33
MR-372-J84-13B200$252.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of faults
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present during engine starting attempts or while the engine is
running.
Special notes:
If the fault is present:
– the coolant temperature: PR064 Coolant temperature is fixed at 11 9 ° C,
– the preheating phase is greater than 10 seconds,
– the low speed motor-driven fan assembly (GMV 1) is continuously supplied,
–if fan assembly 1 is faulty, then fan assembly 2 is activated on vehicles equipped
with air conditioning,
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (start the
engine
+ 5 seconds, then switch off the ignition and wait for 1 minute).
Use bornier Elé. 1681 or Elé. 1590 for all operations on the computer connectors.
Check the coolant temperature sensor connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the coolant temperature sensor between connections 3C and 3JK.
Replace the sensor if its resistance is not approximately:
68780 Ω < X < 82780 Ω at - 40°C
12338 Ω < X < 12582 Ω at - 10°C
2140 Ω < X < 2364 Ω at 25°C
772 Ω < X < 850 Ω at 50°C
275 Ω < X < 291 Ω at 80°C
11 2 Ω < X < 118 Ω at 110°C
85 Ω < X < 89 Ω at 120°C
Check the insulation, continuity and the absence of interference resistance on the following connections:
– connection code3C,
– connection code 3JK,
between components 120 and 244.
If the connection or connections are faulty and 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 coolant temperature sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF001/EDC16_V58_DF001/EDC16_V5C_DF001/EDC16_V18_DF001/EDC16_V1C_DF001/EDC16_V20_DF001EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
MR-372-J84-13B200$252.mif

13B-34
MR-372-J84-13B200$252.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF003
PRESENT
OR
STOREDATMOSPHERIC PRESSURE SENSOR CIRCUIT
1.DEF: Signal outside upper limit
2.DEF: Signal outside lower limit
3.DEF: Inconsistent signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present during engine starting attempts or while the engine is
running.
Special notes:
The atmospheric pressure sensor is integrated into the injection computer and cannot
be separated.
If the fault is present:
– there is light smoke at the exhaust,
– the atmospheric pressure value changes to safe mode, PR035 Atmospheric
pressure = 750 mbar,
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
Use bornier Elé. 1681 or Elé. 1590 for all operations on the computer connectors.
Disconnect the injection computer and check the condition of the contacts and connector.
Repair if necessary.
Display the value of parameter PR041 Turbocharger pressure.
If this value is stuck at 750 mbar, refer to interpretation of fault DF004 Turbocharging pressure sensor circuit.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF003/EDC16_V58_DF003/EDC16_V5C_DF003/EDC16_V18_DF003/EDC16_V1C_DF003/EDC16_V20_DF003

13B-47
MR-372-J84-13B200$252.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF011
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE NO. 1
1.DEF: Sensor reference voltage too low
2.DEF: Sensor reference voltage too high
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after carrying out a road test or after several attempts at
starting the engine.
Special notes:
If the fault is present:
– the cruise control/speed limiter function is inhibited,
– turbocharging is inhibited,
– the engine speed is limited,
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (start the
engine
+ 5 seconds, then switch off the ignition and wait for 1 minute).
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
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.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF011/EDC16_V58_DF011/EDC16_V5C_DF011/EDC16_V18_DF011/EDC16_V1C_DF011/EDC16_V20_DF011

13B-50
MR-372-J84-13B200$252.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF012
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE NO. 2
1.DEF: Sensor reference voltage too low
2DEF: Sensor reference voltage too high
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after carrying out a road test or after several attempts at
starting the engine.
Special notes:
If the fault is present:
– the EGR functions and passenger compartment heating resistance functions are
inhibited,
– the cruise control/speed limiter function is inhibited,
– the engine speed is limited,
– the level 1 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (starting
+ 5 seconds + switch off the ignition and wait 1 minute).
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
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.
Check the condition of the connectors of the EGR valve position sensor, component code 1460, of the
accelerator pedal potentiometer gang 2 sensor, component code 921 and of the refrigerant pressure
sensor, component code 1202.
Check the condition of the injection computer connector, component code 120.
If the 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.
The following sensors are connected to supply no. 2:
– EGR valve position sensor.
– Accelerator pedal potentiometer track 2 sensor.
– Refrigerant pressure sensor.
To locate a faulty sensor and/or connection, disconnect one of these sensors then check whether the fault
becomes stored.
If the fault is still present, repeat the operation with the other sensors.
(Wait a few seconds after each disconnection so that the computer can carry out the check).
If the fault is stored after a disconnection, replace the faulty sensor or repair its connection.
Clear the faults created by the multiple disconnections.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF012/EDC16_V58_DF012/EDC16_V5C_DF012/EDC16_V18_DF012/EDC16_V1C_DF012/EDC16_V20_DF012

13B-52
MR-372-J84-13B200$252.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
DF013
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE NO. 3
1.DEF: Sensor reference voltage too low
2DEF: Sensor reference voltage too high
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after carrying out a road test or after several attempts at
starting the engine.
Special notes:
If the fault is present:
– the EGR function is inhibited,
– the engine stops,
– the level 2 warning light is lit,
– the OBD warning light illuminates after three consecutive driving cycles (start the
engine + 5 seconds + switch off the ignition and wait 1 minute).
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
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.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF013/EDC16_V58_DF013/EDC16_V5C_DF013/EDC16_V18_DF013/EDC16_V1C_DF013/EDC16_V20_DF013