RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16 Repair Manual

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

13B-57
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
CONTINUED
CC.0
CO
NOTESSpecial notes:
If the pre-postheating unit has a short circuit to earth there is
a risk that the heater plugs will be operated continuously.
The heater plugs and the engine may be damaged.
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 earth of the following connections:
– connection code3FY,
– connection code 3FF.
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.
1.DEF
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 earth of the following connections:
– connection code3FY,
– connection code 3FF,
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.

13B-58
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
DF025
PRESENT
OR
STOREDPRE-POSTHEATING UNIT DIAGNOSTIC LINE
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:
It is difficult or even impossible to start the engine 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.
Check the pre-postheating unit connections.
Check the connections on all of the heater plugs.
Repair if necessary.
Check fuse F2 for Mégane II and Scénic II and FM12 for Laguna II (70A) located on the power supply fuse
board.
Check the resistance of the heater plugs:
Replace any plugs whose resistance is not less than 2 Ω at + 20°C.
Check the continuity and absence of interference resistance of the following connections:
– connection code 37AB between components 257 and 682.
– connection code 37AC between components 257 and 683.
– connection code 37Z between components 257 and 680.
– connection code 37AA between components 257 and 681.
Check for + 12 V on connection BP35 of the preheating unit (via fuse F2 for Mégane II and Scénic II and FM12
for Laguna II (70A).
If the fault is still present.
Check the injection computer connections.
Check the continuity and absence of interference resistance of the following connections:
– connection code3FY,
– connection code 3FF.
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_DF025/EDC16_V58_DF025/EDC16_V5C_DF025/EDC16_V18_DF025/EDC16_V1C_DF025/EDC16_V20_DF025

13B-59
MR-372-J84-13B200$252.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of faults
DF032
PRESENT
OR
STOREDTHERMOPLUNGER 1 RELAY CONTROL CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CC.1 : Short circuit to + 12 V
1.DEF: Inconsistent signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the ignition is switched on,
– with the engine running,
– actuator command AC063 Thermoplunger no. 1 relay.
If faults DF033 “Thermoplunger relay 2 control circuit” and DF034
“Thermoplunger relay 3 control circuit” appear, ignore them and go straight to
configuration CF030 “Thermoplunger configuration”.
Special notes:
Use bornier Elé. 1681 for all operations on the engine management computer
connectors.
check the engine management computer connections.
Check the thermoplunger connections, component code 898.
Repair if necessary.
Check for + 12 V after ignition supply on connections BP27 and BP35 of component 1550.
If there is no + 12 V supply, refer to the interpretation of fault DF015 Main relay control circuit.
Repair if necessary.
Check the continuity and absence of interference resistance of connection 3JA between components 120
and 1550.
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.
Using a test light, check the supply by running command AC063 Thermoplunger no. 1 relay on connection 3JB
between components 898 and 1550.
Measure the resistance of the thermoplunger, component code 898.
Replace the thermoplunger, component code 898 if the resistance is greater than 2 Ω.
Replace the water heater interface unit if necessary.
Using a test light, check that the water heater interface unit is properly earthed by running command AC063
Thermoplunger no. 1 relay on connection 3JA between components 120 and 1550.
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_DF032/EDC16_V58_DF032/EDC16_V5C_DF032EDC16
Program No.: C1
Vdiag No.: 50, 58, 5C

13B-60
MR-372-J84-13B200$252.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16
Program No.: C1
Vdiag No.: 50, 58, 5C
13B
DF033
PRESENT
OR
STOREDTHERMOPLUNGER 2 RELAY CONTROL CIRCUIT
CO: Open circuit
CC.1: Short circuit to + 12 V
CC.0: Short circuit to earth
1.DEF: Inconsistent signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the ignition is switched on,
– with the engine running,
– actuator command AC064 Thermoplunger no. 2 relay.
If faults DF032 “Thermoplunger relay 1 control circuit” and DF034
“Thermoplunger relay 3 control circuit” appear, ignore them and go straight to
configuration CF030 “Thermoplunger configuration”.
Special notes:
Use bornier Elé. 1681 for all operations on the engine management computer
connectors.
check the engine management computer connections.
Check the thermoplunger connections, component codes 1072 and 1073.
Repair if necessary.
Check for + 12 V after ignition supply on connections BP27 and BP35 of component 1550.
If there is no + 12 V supply, refer to the interpretation of fault DF015 Main relay control circuit.
Repair if necessary.
Check the continuity, absence of interference resistance and insulation to earth of connection 3JAA
between components 120 and 1550.
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.
Check for + 12 V after ignition supply on connection 3JC between components 1550 and 1072 and on
connection 3JD between components 1550 and 1073.
Measure the resistance of the thermoplungers, component codes 1072 and 1073.
Replace the thermoplungers, component codes 1072 or 1073 if the resistance is greater than 2 Ω.
Replace the water heater interface unit if necessary.
Using a test light, check that the water heater interface unit is properly earthed on connection 3JAA between
components 120 and 1550.
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_DF033/EDC16_V58_DF033/EDC16_V5C_DF033