2012 RENAULT SCENIC diagram

13B-64
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
DF019
CONTINUED 1
Remove the high speed relay and check the continuity of the following connection:
•3JP between components 120 and 234 or 335.
Check the + 12 V after relay feed to the high speed fan assembly relay on the following connection:
•3FB of component 234 or 335.
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.
CC.1
NOTESNo high-speed fan assembly control.
Check the condition of the high 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 234 or
335).
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 "high-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 1 Ω or less than 6 Ω.
Remove the high-speed relay and check the insulation in relation to + 12 V of the following connection:
•3JP between components 120 and 234 or 335.
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-65
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
DF019
CONTINUED 2
CO.0NOTESNo high-speed fan assembly control.
Check the condition of the high 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 234 or
335).
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 "high-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 1 Ω or less than 6 Ω.
Remove the high speed relay and check the insulation to earth of the following connection:
•3JP between components 120 and 234 or 335.
Check the + 12 V after relay supply to the high speed fan assembly relay:
•3FB of component 234 or 335.
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-66
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
DF019
CONTINUED 3
1.DEFNOTESSpecial notes:This fault occurs if the computer's control
section overheats when running command AC153 High
speed fan assembly or during normal operation of the fan
assembly relay.
Check the condition of the high 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 234 or
335).
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 "high-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 high speed relay and check the insulation and continuity of the following connection:
3JP between components 120 and 234 or 335.
Check the + 12 V after relay feed to the high speed fan assembly relay on the following connection:
3FB of component 234 or 335.
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-67
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
DF025
PRESENT
OR
STOREDPRE-POSTHEATING UNIT DIAGNOSTIC LINE
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESPriorities when dealing with a number of faults:
– DF017 Pre-postheating unit control circuit.
Conditions for applying the fault finding procedure to a stored fault:
If the fault reappears after:
– the ignition is switched on in the preheating phase,
– engine running in postheating phase,
– controlling the heater plugs using command AC037 Preheating relay.
IMPORTANT:
– Please observe the cleanliness guidelines and safety advice.
– Respect the type of plugs fitted to the vehicle, either slow or fast:
– Slow plugs are identified by a black ring
– fast plugs have a white ring.
In Vdiag 20, 24, 38 and 74, if the heater plugs are being replaced with plugs of a
different type, see Replacement of components, Replacing heater plugs.
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.
EDC16CP33_V18_DF025 / EDC16CP33_V1C_DF025 / EDC16CP33_V54_DF025 / EDC16CP33_V20_DF025 / EDC16CP33_V58_DF025 /
EDC16CP33_V5C_DF025 / EDC16CP33_V24_DF025 / EDC16CP33_V04_DF025 / EDC16CP33_V08_DF025 / EDC16CP33_V44_DF025 /
EDC16CP33_V4C_DF025 / EDC16CP33_V34_DF025 / EDC16CP33_V38_DF025 / EDC16CP33_V74_DF025 / EDC16CP33_V28_DF025 /
EDC16CP33_V62_DF025/ EDC16CP33_V26_DF025 / EDC16CP33_V60_DF025

13B-68
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
DF025
CONTINUED 1
CC.0
CO.1NOTESNone.
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 all of the heater plugs (see Wiring Diagram Technical Note, Laguna II ph2, Vel Satis
ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component codes 680, 681, 682, 683).
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.
During a phase where the heater plugs are actuated by command AC037 Preheating relay, measure the current
across the heater plugs.
Replace heater plugs with currents less than 1A or greater than 6A after 5 seconds' actuation.
Check the continuity of the following connections:
•37AB between components 257 and 682,
•37AA, between components 257 and 681,
•37Z between components 257 and 680,
•37AC between components 257 and 683.
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-69
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
DF025
CONTINUED 2
Check the + 12 V battery supply to the preheating unit on the following connection:
•BP35 of component 257.
Check the engine earthing.
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.
Interpret command AC037 Preheating relay.
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.
Check the continuity and absence of interference resistance on the following connection (preheating relay unit
diagnostic line):
•3FY 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, contact the Techline.

13B-70
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
DF026
PRESENT
OR
STOREDCYLINDER 1 INJECTOR CONTROL CIRCUIT
CO: Open circuit
CC: Short circuit
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
the fault becomes present after:
– the ignition is switched on.
– the engine is started.
Special notes:
If the fault is present:
–the EOBD (European On Board Diagnostic) warning light is lit,
–the level 2 warning light is lit for CC and 1. DEF (only for M9R760/761),
–the level 1 warning light comes on for CO.
Use bornier Elé.1681 for all operations on the engine management computer.
After replacing an injector, run commands SC002 Enter injector codes (the IMA*
codes are read from left to right) and SC036 Reinitialise programming and follow the
procedure.
IMPORTANT:
– cylinder no.1 is located at the timing end.
– please observe the cleanliness guidelines and safety advice.
– do not disconnect the injectors with the engine running as this may damage the
engine.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF026 / EDC16CP33_V1C_DF026 / EDC16CP33_V54_DF026 / EDC16CP33_V20_DF026 / EDC16CP33_V58_DF026 /
EDC16CP33_V5C_DF026 / EDC16CP33_V24_DF026 / EDC16CP33_V04_DF026 / EDC16CP33_V08_DF026 / EDC16CP33_V44_DF026 /
EDC16CP33_V4C_DF026 / EDC16CP33_V34_DF026 / EDC16CP33_V38_DF026 / EDC16CP33_V74_DF026 / EDC16CP33_V28_DF026 /
EDC16CP33_V62_DF026 / EDC16CP33_V26_DF026 / EDC16CP33_V60_DF026

13B-71
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
IMA*: Individual injector correction
DF026
CONTINUED 1
CONOTESNone.
Check the condition and connection of the injector no. 1 connectors (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 193).
Check the condition and connection 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 of the following connections:
•3KW between components 120 and 193,
•3CR between components 120 and 193.
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.
Measure the resistance between connections 3CR and 3KW of component 193.
If the resistance of injector no. 1 is not between 150 kΩ < X < 210 kW, replace the injector no. 1, component code
193 (see MR 402 (Vel Satis ph2), MR 395 (Laguna II ph2), MR 364 (Mégane II ph2), MR 370 (Scénic II ph2),
MR 405 (Espace IV ph2) Mechanical, 13B Diesel injection, Diesel injector, Removal - Refitting and consult
the section Replacement of components).
If the fault is still present, contact the Techline.