ESP RENAULT SCENIC 2012 J95 / 3.G Engine And Peripherals EDC16CP33 Owner's Guide

13B-53
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF013
CONTINUED 1
Measure the sensor feed voltage on the following connections:
•3KJ of component 799,
•3LX of component 1032.
If at least one of the two voltages is greater than + 5.1 V, disconnect the sensor connectors one by one.
If, after disconnecting the air flow sensor, the voltage returns to normal,
Check the insulation against + 12 V of the following connection:
•3KJ between components 120 and 799.
If, after disconnecting the rail pressure sensor, the voltage returns to normal,
Check the insulation from + 12 V of the following connection: 3LX between components 120 and 1032.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Clear the faults created by the multiple disconnections.
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 120).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If the fault is still present, contact the Techline.

13B-54
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF013
CONTINUED 2
2.DEFNOTESNone.
Note:
Supply no. 3 is for the following components:
– air flowmeter, component code 799,
– rail pressure sensor, component code 1032.
Measure the sensor feed voltage on the following connections:
•3KJ of component 799,
•3LX of component 1032.
If at least one of the two voltages is less than 4.9 V, disconnect the sensor connectors one by one.
If, after disconnecting the air flow sensor, the voltage returns to normal,
Check the insulation to earth of the following connection:
•3KJ between components 120 and 799.
If, after disconnecting the rail pressure sensor, the voltage returns to normal,
Check the insulation to earth of the following connection:
•3LX between components 120 and 1032.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Clear the faults created by the multiple disconnections.
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 120).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If the fault is still present, contact the Techline.

13B-55
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF017
PRESENT
OR
STOREDPRE-POSTHEATING UNIT CONTROL CIRCUITCO: Open circuit
CC.1: Short circuit to + 12 V
CC.0: Short circuit to earth
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
If DF025 Preheating unit diagnostic line is present, disregard it.
If the fault is declared present after:
– the ignition is switched on.
– starting the engine,
– a road test,
– relay actuation using command AC037 Preheating relay.
Special notes:
– preheating inhibited.
Use bornier Elé. 1681 for all operations on the engine management computer
connectors.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
CO
NOTESNone.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance between connections 3FF and BP35 of component 257.
If the resistance is greater than 2 kΩ, replace the preheating unit.
EDC16CP33_V18_DF017 / EDC16CP33_V1C_DF017 / EDC16CP33_V54_DF017 / EDC16CP33_V20_DF017 / EDC16CP33_V58_DF017 /
EDC16CP33_V5C_DF017 / EDC16CP33_V24_DF017 / EDC16CP33_V04_DF017 / EDC16CP33_V08_DF017 / EDC16CP33_V44_DF017 /
EDC16CP33_V4C_DF017 / EDC16CP33_V34_DF017 / EDC16CP33_V38_DF017 / EDC16CP33_V74_DF017 / EDC16CP33_V28_DF017 /
EDC16CP33_V62_DF017/ EDC16CP33_V26_DF017 / EDC16CP33_V60_DF017

13B-56
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF017
CONTINUED 1
Check the continuity of the following connection:
•3FF between components 120 and 257.
Check the + 12 V battery supply to the preheating unit on the following connection:
•BP35 of component 257.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, replace the pre-postheating unit.
CC.1
NOTESNone.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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.
Measure the resistance between connections 3FF and BP35 of component 257.
If the resistance is less than 1 kΩ, replace the preheating unit.
Check the insulation in relation to +12 V of the following connection:
•3FF between components 120 and 257.
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, replace the pre-postheating unit.

13B-57
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF017
CONTINUED 2
CC.0NOTESNone.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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.
Measure the resistance between connections 3FF and BP35 of component 257.
If the resistance is less than 450Ω, replace the preheating unit.
Check the insulation to earth of the following connection:
•3FF between components 120 and 257.
Check the + 12 V battery supply to the preheating unit:
•BP35 of component 257,
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, replace the pre-postheating unit.

13B-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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF017
CONTINUED 3
1.DEFNOTESSpecial notes:
This fault occurs if the computer's control section overheats
when command AC037 Preheating relay is run or during
normal operation of the preheating unit.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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.
Check the continuity and absence of interference resistance on the following connection:
•3FF between components120 and 257.
Check the + 12 V battery supply to the preheating unit:
•BP35 of component 257.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.

13B-59
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF018
PRESENT
OR
STOREDLOW SPEED FAN ASSEMBLY CONTROL CIRCUITCO: Open circuit
CC.1: Short circuit to + 12 V
CC.0: Short circuit to earth
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault reappears after:
– the ignition is switched on.
– clearing the fault from the memory,
– the relay is actuated using command AC154 Low speed fan assembly.
Special notes:
– the high speed fan assembly is actuated at the same time as the low speed fan
assembly.
–the level 1 warning light is illuminated.
Use bornier Elé. 1681 for all operations on the connector of the engine management
computer.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
CO
NOTESNo low speed fan assembly control.
Check the condition of the low speed fan assembly relay mounting connector (see Wiring Diagram Technical
Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 700 or
336).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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.
EDC16CP33_V18_DF018 / EDC16CP33_V1C_DF018 / EDC16CP33_V54_DF018 / EDC16CP33_V20_DF018 / EDC16CP33_V24_DF018 /
EDC16CP33_V04_DF018 / EDC16CP33_V08_DF018 / EDC16CP33_V44_DF018 / EDC16CP33_V4C_DF018 / EDC16CP33_V34_DF018 /
EDC16CP33_V38_DF018 / EDC16CP33_V74_DF018 / EDC16CP33_V28_DF018 / EDC16CP33_V62_DF018 / EDC16CP33_V26_DF018 /
EDC16CP33_V60_DF018

13B-60
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF018
CONTINUED 1
Measure the resistance of the low-speed fan assembly relay coil.
IMPORTANT:
Respect the measuring direction (polarity) as a protection diode is used.
Replace the relay if its resistance is greater than 1 kΩ or less than 6 Ω.
Remove the low speed relay and check the continuity of the following connection:
•3JN between components 120 and 700 or 336.
Check the + 12 V after relay supply to the low speed fan assembly relay.
•3FB of component 700 or 336.
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.
CC.1
NOTESNo low speed fan assembly control.
Check the condition of the low speed fan assembly relay mounting connector (see Wiring Diagram Technical
Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 700 or
336).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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.
Measure the resistance of the low-speed fan assembly relay coil.
IMPORTANT:
Respect the measuring direction (polarity) as a protection diode is used.
Replace the relay if its resistance is greater than 1 kΩ or less than 6 Ω.
Remove the low-speed relay and check the insulation in relation to + 12 V of the following connection:
•3JN between components 120 and 700 or 336.
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.

13B-61
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF018
CONTINUED 2
CC.0NOTESLow speed fan assembly constantly activated.
Check the condition of the low speed fan assembly relay mounting connector (see Wiring Diagram Technical
Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 700 or
336).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance of the low-speed fan assembly relay coil.
IMPORTANT:
Respect the measuring direction (polarity) as a protection diode is used.
Replace the relay if its resistance is greater than 1 kΩ or less than 6 Ω.
Remove the low speed relay and check the insulation to earth of the following connection:
•3JN between components 120 and 700 or 336.
Check the + 12 V after relay supply to the low speed fan assembly relay.
•3FB of component 700 or 336.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.

13B-62
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 with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF018
CONTINUED 3
1.DEFNOTESSpecial notes:
This fault occurs if the computer's control section overheats
when command AC154 Low speed fan assembly is run or
during normal operation of the fan assembly relay.
Check the condition of the low speed fan assembly relay mounting connector (see Wiring Diagram Technical
Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 700 or
336).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, 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.
Measure the resistance of the low-speed fan assembly relay coil.
IMPORTANT:
Respect the measuring direction (polarity) as a protection diode is used.
Replace the relay if the resistance of the relay coil is greater than 200 Ω or less than 20 Ω.
Remove the low speed relay and check the insulation and continuity of the following connection:
•3JN between components 120 and 700 or 336.
Check the + 12 V after relay supply to the low speed fan assembly relay.
•3FB of component 700 or 336.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.