2011 RENAULT SCENIC Engine And Peripherals EDC16 Workshop Manual

13B-49
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
CONTINUED 2
2. Check the insulation against + 12 V of the following connections:
– connection code 3LP,
– connection code 3LN,
– connection code 3LQ,
– connection code3TL,
– connection code 3TK,
– connection code 3LT,
– connection code 3LS,
– connection code 3LR,
between components 120, 1071, 921 and 1290.
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.
3. Check the insulation between the following connections after disconnecting the sensors and the injection
computer:
– connection codes 3LN and 3LQ of the turbocharging pressure sensor,
– connection codes 3LQ and 3TK of the particle filter differential pressure sensor,
– connection codes 3LS and 3LU of pedal sensor gang 1.
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 these checks do not produce the correct results, replace the faulty sensor(s).
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.

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-51
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
CONTINUED 1
If the fault is still present when the three sensors have been disconnected:
1 Check the earth insulation of the following connections:
– connection codes 3GC and 3EL between components 120 and 1460.
– connection codes 3LU and 3LW between components 120 and 921.
– connection codes 38Y and 38X between components 120 and 1202.
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.
2 Check the continuity and insulation from + 12 V of the following connections:
– connection code 3GC,
– connection code 3EL,
– connection code 3JM,
between components 120 and 1460.
– connection code 3LU,
– connection code3LW,
– connection code 3LV.
between components 120 and 921.
– connection code 38Y,
– connection code 38U,
– connection code 38X.
between components 120 and 1202.
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.
3 Check the insulation between the following connections after disconnecting the sensors and the injection
computer:
- connection codes 3LT and 3LW of the connector of pedal sensor gang 2.
- connection codes 3GC and 3JM of the connector of the EGR valve position sensor.
- connection codes 38Y and 38U of the connector of the refrigerant pressure sensor.
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 these checks do not produce the correct results, replace the faulty sensor(s).
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.

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

13B-53
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
CONTINUED 1
The following sensors are connected to supply no. 3:
– Rail pressure sensor.
– Air flow 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.
If the fault is still present when the sensors have been disconnected:
1. Check the earth insulation of the following connections:
– connection code 3LY,
– connection code 3LX,
– connection code3DV,
– connection code 3KJ,
– connection code 3DW.
Between components 120, 1032 and 799.
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.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-54
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
CONTINUED 2
2. Check the insulation from + 12 V of the following connections:
– connection code 3LY,
– connection code 3LX,
– connection code 3LZ,
– connection code3DV,
– connection code 3KJ,
– connection code3DW,
– connection code 3DU.
between components 120, 1032 and 799.
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.
3. Check the insulation between the following connections after disconnecting the sensors and the injection
computer:
– connection codes 3LZ and 3LX of the rail pressure sensor,
– connection codes 3DW and 3KJ of the air flowmeter connector.
If these checks do not produce the correct results, replace the faulty sensor(s).
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.

13B-55
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
DF015
PRESENT
OR
STOREDMAIN RELAY CONTROL CIRCUIT
1.DEF : Relay cut out too soon
2.DEF : Relay cut out too late
NOTESConditions for applying the fault finding procedure to stored faults:
Only deal with this fault if it is stored.
Special notes:
The supply relay of the injection control unit (50A) is located on a relay plate in the
engine connection unit under the Protection and Switching Unit.
If the fault is present, the level 1 warning light is lit.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
Check the Protection and Switching Unit connections (Vdiag 50, 58, 5C only).
Check the injection computer connections.
Repair if necessary.
Check the condition of the battery terminals making sure they are correctly tightened.
Check the condition of the injection supply relay and its mounting.
Check the 5D (5A) + after ignition supply located on the UPC (Protection and Switching Unit) (Vdiag 50, 58, 5C
only).
Repair if necessary.
Check the continuity and absence of interference resistance of connection 3AA between components 120 and
983.
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, contact the Techline.
IMPORTANT!WA R N I N G
If the Protection and Switching Unit (Vdiag 50, 58, 5C only) no longer detects the injection
computer signals, GMV 1 will be actuated until the battery is completely discharged.
In the event that engine cooling fan 1 is not working, GMV 2 will be supplied.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF015/EDC16_V58_DF015/EDC16_V5C_DF015/EDC16_V18_DF015/EDC16_V1C_DF015/EDC16_V20_DF015

13B-56
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
DF017
PRESENT
OR
STOREDPRE-POSTHEATING UNIT CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
CC.0:Open circuit or short circuit to earth
CO: Open circuit
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after several attempts to start the engine or after running
actuator command AC001 Preheating unit.
Special notes:
If the fault is present, it is difficult or even impossible to start the vehicle when cold.
If the fault is present, the level 1 warning light is lit.
Use bornier Elé.1681 or Elé.1590 for any operation on the injection computer
connectors.
CC.1
NOTESNone
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of supply fuse F2 (70A) on the power supply fuse board.
Check the continuity and insulation from + 12 V of the following connections:
– connection code 3FF,
– connection code3FY,
Between components 120 and 257.
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 pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V50_DF017/EDC16_V58_DF017/EDC16_V5C_DF017/EDC16_V18_DF017/EDC16_V1C_DF017/EDC16_V20_DF017