13B-116
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$072.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
DF056
CONTINUED 1
CO.0NOTESIn the event of the simultaneous presence of fault DF002 Air
temperature sensor circuit, check that the air flow sensor
connector is connected correctly.
Check the condition of the air flowmeter connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 799).
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 insulation to earth of the following connections:
•3DV between components 120 and 799,
•3KJ between components 120 and 799,
•3DW between components120 and 799.
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 + 5 V feed to the air flowmeter.
•3KJ of component 799.
Check the +12 V after relay feed to the air flowmeter.
•3FB of component 799.
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.
Run Test 5 Air flowmeter.
With the flowmeter connected, the vehicle ignition on and engine stopped:
Measure the voltage between connections 3DW and 3DV
of component 799.
Replace the air flowmeter if the voltage is not between 0.3 V < X < 0.7 V.
If the fault is still present, replace the air flowmeter.
13B-117
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$072.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
DF056
CONTINUED 2
CC.1NOTESNone.
Check the condition of the air flowmeter connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 799).
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 insulation in relation to + 12 V of the following connections:
•3DV between components 120 and 799,
•3KJ between components 120 and 799,
•3DW between components 120 and 799.
Check the + 5 V supply of the air flowmeter on the following connection:
•3KJ of component 799.
Check the + 12 V after relay supply of the air flowmeter on the following connection:
•3FB of component 799.
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.
With the flowmeter connected, the vehicle ignition on and engine stopped:
Measure the voltage between connections 3DW and 3DV of component 799.
Replace the air flowmeter if the voltage is not between 0.3 V < X < 0.7 V.
If the fault is still present, replace the air flowmeter.
13B-118
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$072.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
DF056
CONTINUED 3
1.DEFNOTESNone.
Check the condition of the air flowmeter connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 799).
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 for continuity and absence of interference resistance of the following connections:
•3DV between components 120 and 799,
•3KJ between components 120 and 799,
•3DW between components 120 and 799.
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.
Check the condition of the flowmeter: no visible damage to the sensing element of the flowmeter.
Use the Monitool application: MT001 Turbocharging function to check the entire air line (for Vdiag 04 and 44).
If the fault is still present, replace the air flowmeter.
13B-132
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$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
DF086
PRESENT
OR
STOREDCOOLANT PUMP RELAY CONTROL CIRCUITCO: Open circuit
CC.0: Short circuit to earth
CC.1: Short-circuit on +12 volts.
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault becomes present after:
– the ignition is switched on.
– starting the engine,
– a road test.
Special notes:
The control relay is located in the engine compartment connection unit.
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 coolant pump relay mounting connector on the engine fuse box (see Wiring Diagram
Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code
597).
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 conformity of the coolant pump relay (relay removed):
•Insulation between connections 3FB and 3VH of component 573.
• Measure the resistance between connections 3AAZ and 3FB of component 573.
Replace the relay if the resistance of the coolant pump relay is greater than 1 kΩ or less than 6 Ω.
EDC16CP33_V18_DF086 / EDC16CP33_V1C_DF086 / EDC16CP33_V20_DF086 / EDC16CP33_V24_DF086 / EDC16CP33_V26_DF086 /
EDC16CP33_V28_DF086 / EDC16CP33_V54_DF086 / EDC16CP33_V58_DF086 / EDC16CP33_V5C_DF086 / EDC16CP33_V60_DF086 /
EDC16CP33_V62_DF086
13B-133
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$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
DF086
CONTINUED 1
Check the continuity of the following connections:
•3AAZ between components 120 and 573,
•3VH between components 573 and 369,
•M between components 369 and the vehicle earth.
Check the + 12 V after relay supply to the coolant pump relay:
•3FB of component 573.
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
NOTESNone.
Check the condition of the coolant pump relay mounting connector on the engine fuse box (see Wiring Diagram
Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code
597).
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 conformity of the coolant pump relay (relay removed):
•Insulation between connections 3FB and 3VH of component 573.
• Measure the resistance between connections 3AAZ and 3FB of component 573.
Replace the relay if the resistance of the coolant pump relay is greater than 1 kΩ or less than 6 Ω.
Check the insulation from + 12 V of the following connections:
•3AAZ between components 120 and 573,
•3VH between components 573 and 369.
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-134
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$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
DF086
CONTINUED 2
CC.0NOTESNone.
Check the condition of the coolant pump relay mounting connector on the engine fuse box (see Wiring Diagram
Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code
597).
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 conformity of the coolant pump relay (relay removed):
•Insulation between connections 3FB and 3VH of component 573.
• Measure the resistance between connections 3AAZ and 3FB of component 573.
Replace the relay if the resistance of the coolant pump relay is greater than 1 kΩ or less than 6 Ω.
Check the insulation to earth of the following connections:
•3AAZ between components 120 and 573,
•3VH between components 573 and 369.
Check the + 12 V after relay supply to the coolant pump relay on the following connection:
•3FB of component 573.
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-135
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$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
DF086
CONTINUED 3
1.DEFNOTESSpecial note:
This fault appears when the computer control section has
overheated.
Check the condition of the coolant pump relay mounting connector on the engine fuse box (see Wiring Diagram
Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code
597).
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 conformity of the coolant pump relay (relay removed):
•Insulation between connections 3FB and 3VH of component 573.
• Measure the resistance between connections 3AAZ and 3FB of component 573.
Replace the relay if the resistance of the coolant pump relay is greater than 200 Ω or less than 20 Ω.
Check the absence of interference resistance of the following connection:
•3AAZ between components 120 and 573.
Check the + 12 V after relay supply to the coolant pump relay on the following connection:
•3FB of component 573.
Check the + 12 V battery supply to the coolant pump relay on the following connection:
•3FB of component 573.
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-136
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$072.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
DF091
STOREDVEHICLE SPEED SIGNAL1.DEF: Vehicle speed too high.
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after a road test.
Special notes:
– the vehicle speed signal sent by the ABS computer to the injection computer is
greater than the threshold defined in the calibration,
–use bornier Elé.1681 for any operations on the injection computer connectors.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Check the condition of the ABS computer connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1094).
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 there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Run complete fault finding on the ABS computer (see 38C, Anti-lock braking system).
Run complete fault finding on the multiplex network (see 88B, Multiplexing).
If the fault is still present, contact the Techline.
EDC16CP33_V18_DF091M / EDC16CP33_V1C_DF091M / EDC16CP33_V54_DF091M / EDC16CP33_V20_DF091M /
EDC16CP33_V58_DF091M / EDC16CP33_V5C_DF091M / EDC16CP33_V24_DF091M / EDC16CP33_V04_DF091M /
EDC16CP33_V08_DF091M / EDC16CP33_V44_DF091M / EDC16CP33_V4C_DF091M / EDC16CP33_V34_DF091M /
EDC16CP33_V38_DF091M / EDC16CP33_V74_DF091M / EDC16CP33_V28_DF091M / EDC16CP33_V62_DF091M /
EDC16CP33_V26_DF091M / EDC16CP33_V60_DF091M