13B-115
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
PRESENT
OR
STOREDAIR FLOW SENSOR CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit + 12 volts
1.DEF: Consistent after switching off the ignition
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– the ignition is switched on.
– starting the engine,
– a road test,
– the ignition is switched off: 1.DEF.
Priorities when dealing with a number of faults:
– DF013 Sensor supply voltage no. 3, 1.DEF
Special notes:
If the fault is present:
–the EOBD (European On Board Diagnostic) warning light is lit,
–the level 1 warning light is lit and turbocharging is no longer authorised for CO.0 and
CC.1,
–the level 1 warning light is lit for 1.DEF (for Vdiag 20, 24, 58 and 5C),
– the EGR function is inhibited by the engine management computer,
– engine torque limited,
– safe value PR132 Air flow = 90 kg/h at idle speed,
– particle filter regeneration is 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.
EDC16CP33_V18_DF056 / EDC16CP33_V1C_DF056 / EDC16CP33_V54_DF056 / EDC16CP33_V20_DF056 / EDC16CP33_V58_DF056 /
EDC16CP33_V5C_DF056 / EDC16CP33_V24_DF056 / EDC16CP33_V04_DF056 / EDC16CP33_V08_DF056 / EDC16CP33_V44_DF056 /
EDC16CP33_V4C_DF056 / EDC16CP33_V34_DF056 / EDC16CP33_V38_DF056 / EDC16CP33_V74_DF056 / EDC16CP33_V28_DF056 /
EDC16CP33_V62_DF056 / EDC16CP33_V26_DF056 / EDC16CP33_V60_DF056
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-137
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
DF098
PRESENT
OR
STOREDFUEL TEMPERATURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present when the ignition is switched on.
Special notes:
If the fault is present,
– fuel temperature safe value PR063 Fuel temperature = 100°C,
–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.
CC.0
NOTESNone.
Check the condition of the fuel temperature sensor connector (see Wiring Diagram Technical Note, Laguna II
ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1066).
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 3FAB and 3LD of component 1066.
Replace the fuel temperature sensor if its resistance is less than 85 Ω or greater than 50 kΩ.
Check the insulation to earth of the following connection:
•3FAB between components 120 and 1066.
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.
EDC16CP33_V18_DF098 / EDC16CP33_V1C_DF098 / EDC16CP33_V54_DF098 / EDC16CP33_V20_DF098 / EDC16CP33_V58_DF098 /
EDC16CP33_V5C_DF098 / EDC16CP33_V24_DF098 / EDC16CP33_V04_DF098 / EDC16CP33_V08_DF098 / EDC16CP33_V44_DF098 /
EDC16CP33_V4C_DF098 / EDC16CP33_V34_DF098 / EDC16CP33_V38_DF098 / EDC16CP33_V74_DF098 / EDC16CP33_V28_DF098 /
EDC16CP33_V62_DF098 / EDC16CP33_V26_DF098 / EDC16CP33_V60_DF098
13B-138
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
DF098
CONTINUED
CO.1NOTESNone.
If the wiring of the particle filter downstream temperature sensor, component code 1288, is present (with or without
the sensor being present), check the electrical insulation in relation to + 12 V between the following connections:
–3XU between components 120 and 1288,
–3TG between components 120 and 1288.
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 condition of the fuel temperature sensor connector (see Wiring Diagram Technical Note, Laguna II
ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1066).
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 3FAB and 3LD of component 1066.
Replace the fuel temperature sensor if its resistance is less than 85 Ω or greater than 50 kΩ.
Check the continuity of the following connections:
•3FAB between components 120 and 1066,
•3LD between components 120 and 1066.
Check the insulation in relation to +12 V of the following connection:
•3FAB between components 120 and 1066.
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-140
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
DF119
PRESENT
OR
STOREDCAMSHAFT SENSOR SIGNAL
1.DEF: No camshaft signal or timing fault (tension or setting)
2.DEF: Supply fault, signal interference, camshaft sensor internal fault
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– starting the engine,
– a road test.
Special notes:
–the level 1 warning light is lit.
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.
1.DEF
NOTESNone.
Check the condition of the camshaft sensor connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 746).
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.
If the fault is stored:
Visually check the condition of the surrounding area.
If, on detection of the fault, the engine speed is considerably lower than the idling speed (less than 150 rpm) and
no customer complaint is declared (warning light indicated by the customer does not come on and vehicle can be
started), the fault was detected because the engine had stalled.
Clear the fault and carry out a road test.
EDC16CP33_V18_DF119 / EDC16CP33_V1C_DF119 / EDC16CP33_V54_DF119 / EDC16CP33_V20_DF119 / EDC16CP33_V58_DF119 /
EDC16CP33_V5C_DF119 / EDC16CP33_V24_DF119 / EDC16CP33_V04_DF119 / EDC16CP33_V08_DF119 / EDC16CP33_V44_DF119 /
EDC16CP33_V4C_DF119 / EDC16CP33_V34_DF119 / EDC16CP33_V38_DF119 / EDC16CP33_V74_DF119 / EDC16CP33_V28_DF119 /
EDC16CP33_V62_DF119 / EDC16CP33_V26_DF119 / EDC16CP33_V60_DF119
13B-141
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
DF119
CONTINUED 1
Note:
Measure the resistance between the connections indicated without producing a short circuit between the
connections.
1. Disconnect the sensor before measuring the resistance with an Ohmmeter or multimeter.
2. Resistance between connections 3CQ and 3FB of component 746 (signal and supply) must be between
7.2 kΩ and 13.4 kΩ (10.2 kΩ nominal).
3. The resistance between connections 3PL and 3FB of component 746 (earth and supply) must be greater
than 100 kΩ.
4. The resistance between connections 3PL and 3CQ of component 746 (earth and signal) must be greater than
100 kΩ.
If the values are incorrect, replace the camshaft sensor.
Check the continuity of the following connections:
•3PL between components 120 and 746,
•3CQ between components 120 and 746.
Check the + 12 V after relay feed to the camshaft sensor on the following connection:
•3FB of component 746.
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 camshaft sensor.
2.DEF
NOTESPriorities when dealing with a number of faults:
– DF120 Engine speed sensor signal
Check the condition of the camshaft sensor connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 746).
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.
13B-142
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
DF119
CONTINUED 2
Check the continuity of the following connections:
•3PL between components 120 and 746,
•3CQ between components 120 and 746.
Check the + 12 V after relay feed to the camshaft sensor on the following connection:
•3FB of component 746.
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 conformity of the camshaft sprocket/camshaft assembly.
– Check the timing adjustment.
Carry out the necessary repairs.
If the fault is still present, contact the Techline.
13B-143
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$073.mif
13B
DF120
PRESENT
OR
STOREDENGINE SPEED SENSOR SIGNAL
1.DEF: Engine speed signal interference, broken tooth on flywheel or engine speed
sensor internal fault
2.DEF: No engine speed signal, or interference affecting engine speed signal
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– starting the engine,
– a road test,
– attempting to start the engine.
Special notes:
The engine speed sensor is consistent with the camshaft sensor.
If the fault is present:
– particle filter regeneration is inhibited,
–the level 2 warning light is lit.
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 engine speed sensor connector (see Wiring Diagram Technical Note, Laguna II ph2,
Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 149).
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 that the sensor is securely attached.
Measure the resistance between connections 3BG and 3BL of component 149.
If the winding resistance is not between 600Ω and 1000Ω, replace the engine speed sensor.
EDC16CP33_V18_DF120 / EDC16CP33_V1C_DF120 / EDC16CP33_V54_DF120 / EDC16CP33_V20_DF120 / EDC16CP33_V58_DF120 /
EDC16CP33_V5C_DF120 / EDC16CP33_V24_DF120 / EDC16CP33_V04_DF120 / EDC16CP33_V08_DF120 / EDC16CP33_V44_DF120 /
EDC16CP33_V4C_DF120 / EDC16CP33_V34_DF120 / EDC16CP33_V38_DF120 / EDC16CP33_V74_DF120 / EDC16CP33_V28_DF120 /
EDC16CP33_V62_DF120/ EDC16CP33_V26_DF120 / EDC16CP33_V60_DF120
DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74