2011 RENAULT SCENIC ignition

13B-71V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF028
CONTINUED
Check the condition of injector connector no. 3 (see Wiring Diagram Technical Note, Mégane II ph2, Scénic II
ph2, component code 195).
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.
Disconnect injector no. 3.
Measure the resistance of injector no. 3.
Replace the injector if it has a short circuit (R = 0 Ω) or open circuit (infinite resistance measurement).
Otherwise, reconnect injector no. 3.
Check for continuity and the absence of interference resistance of the following connections:
– Connection code 3KY between components 120 and 195.
– Connection code 3CT between components 120 and 195.
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 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-72V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF029
PRESENT
OR
STOREDCYLINDER 4 INJECTOR CONTROL CIRCUIT
CO: Open circuit
CC: Short circuit
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– with the engine running,
– a road test.
Special notes:
If the fault is present:
– engine torque limited for CO,
– engine stops for CO on more than one injector,
–the level 2 warning light comes on for CC and 1.DEF,
–the level 1 warning light comes on for CO,
–the European On Board Diagnostic warning light is lit.
– engine cut-off for CC and 1.DEF.
Use bornier Elé.1681 for all operations on the engine management computer.
After replacing an injector, run commands SC002 Enter injector codes and SC036
Reinitialisation of programming, follow the described procedures.
IMPORTANT
Cylinder no. 1 is located on the engine flywheel end.
Please observe the cleanliness guidelines and safety advice.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
EDC16C36_V44_DF029/EDC16C36_V4C_DF029/EDC16C36_V48_DF029/EDC16C36_V50_DF029/EDC16C36_V54_DF029/
EDC16C36_V58_DF029
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-73V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF029
CONTINUED
Check the condition of the injector no.4 connector (see Wiring Diagram Technical Note, Mégane II ph2, Scénic
II ph2, component code 196).
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.
Disconnect injector no. 4.
Measure the resistance of injector no. 4.
Replace the injector if it has a short circuit (R = 0 Ω) or open circuit (infinite resistance measurement).
Otherwise, reconnect injector no. 4.
Check for continuity and the absence of interference resistance of the following connections:
– Connection code 3KZ between components 120 and 196.
– Connection code 3CU between components 120 and 196.
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 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-74V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF032
PRESENT
OR
STOREDTHERMOPLUNGER 1 RELAY CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
1.DEF: Internal electronic fault
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.
Special notes:
Use bornier Elé. 1681 for all operations on the connectors of the engine management
computer.
Use the Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
CC.1
NOTESNone.
1.DEFSpecial note:
This fault appears when the computer control section has
overheated.
Check the conformity of fuses F2 (70A) and F3 (70A) on component 777, replace if necessary.
Check the connections on the additional heater interface unit.
check the engine management computer connections.
If 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 feed on connections BP27 and BP35 of component 1550.
If there is no + 12 V, refer to the interpretation of fault DF151 Main relay circuit.
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.
EDC16C36_V48_DF032/EDC16C36_V58_DF032
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.: 48, 58

13B-75V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF032
CONTINUED
Check the supply to thermoplunger 1:
– Disconnect the connector of component 898.
– Connect a test light between connection 3JB of component 898 and a chassis earth.
– Run command AC063 Thermoplunger no. 1 relay.
If the test light comes on correctly, measure the thermoplunger resistance between the connection 3JA of
component 898 and a chassis earth.
If the resistance is greater than 2Ω, replace thermoplunger 1.
If the test light does not come on, check the continuity and insulation of the following connection:
– Connection code 3JB between components 1550 and 898.
If the connection is 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 the earthing on the additional heater interface unit:
– Disconnect the connector of component 1550.
– Connect a test light between connections 3JA and BP27 of component 1550.
– Run command AC063 Thermoplunger no. 1 relay.
If the test light comes on correctly, replace the additional heater interface unit.
If the test light does not come on, check the continuity and insulation from + 12 V of the following connection:
– Connection code 3JA between components 120 and 1550.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
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.: 48, 58

13B-76V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF033
PRESENT
OR
STOREDTHERMOPLUNGER 2 RELAY CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
1.DEF: Internal electronic fault
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.
Special notes:
Use bornier Elé. 1681 for all operations on the connectors of the engine management
computer.
Use the Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
CC.1
NOTESNone.
1.DEFSpecial note:
This fault appears when the computer control section has
overheated.
Check the conformity of fuses F2 (70A) and F3 (70A) on component 777, replace if necessary.
Check the connections on the additional heater interface unit.
check the engine management computer connections.
If 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 feed on connections BP27 and BP35 of component 1550.
If there is no + 12 V, refer to the interpretation of fault DF151 Main relay circuit.
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.
EDC16C36_V48_DF033/EDC16C36_V58_DF033
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.: 48, 58

13B-77V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF033
CONTINUED
Check the supply to thermoplungers 2 and 3:
– Disconnect the connector of component 1072.
– Connect a test light between connection 3JC of component 1072 and a chassis earth.
– Run command AC064 Thermoplunger no. 2 relay.
– Disconnect the connector of component 1073.
– Connect a test light between connection 3JD of component 1073 and a chassis earth.
– Run command AC064 Thermoplunger no. 2 relay.
If the test light comes on correctly, measure the resistance of thermoplunger 2 and 3 between the following
connections:
–3JC of component 1072 and a chassis earth,
–3JD of component 1073 and a chassis earth.
If the resistance is greater than 2 Ω, replace thermoplunger 2 or 3.
If the test light does not come on, check the continuity and insulation of the following connections:
– Connection code 3JC between components 1550 and 1072.
– Connection code 3JD between components 1550 and 1073.
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 the earthing on the additional heater interface unit:
– Disconnect the connector of component 1550.
– Connect a test light between connections 3JAA and BP27 of component 1550.
– Run command AC064 Thermoplunger no. 2 relay.
If the test light comes on correctly, replace the additional heater interface unit.
If the test light does not come on, check the continuity and insulation from + 12 V of the following connection:
– Connection code 3JAA between components 120 and 1550.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
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.: 48, 58

13B-78V9 MR-372-J84-13B450$101.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF034
PRESENT
OR
STOREDTHERMOPLUNGER 3 RELAY CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
1.DEF: Internal electronic fault
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 AC031 Thermoplunger no. 3 relay.
Special notes:
Use bornier Elé. 1681 for all operations on the connectors of the engine management
computer.
Use the Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
CC.1
NOTESNone.
1.DEFSpecial note:
This fault appears when the computer control section has
overheated.
Check the conformity of fuses F2 (70A) and F3 (70A) on component 777, replace if necessary.
Check the connections on the additional heater interface unit.
check the engine management computer connections.
If 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 feed on connections BP27 and BP35 of component 1550.
If there is no + 12 V, refer to the interpretation of fault DF151 Main relay circuit.
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.
EDC16C36_V48_DF034/EDC16C36_V58_DF034EDC16 C36
Program No.: 91
Vdiag No.: 48, 58
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.