13B-357
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR063
CONTINUED
Sensor electrical conformity
Check the continuity and absence of interference resistance of the following connections:
•3FAB between components 120 and 1066,
•3LD between components 120 and 1066.
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.
Measure the resistance between the following connections:
•3FAB and 3LD of component 1066.
If the fuel temperature sensor resistances are not between:
3538 Ω < X < 4502 Ω (at + 10°C),
1950 Ω < X < 2150 Ω (at + 25°C),
763 Ω < X < 857 Ω (at +50°C),
replace the sensor.
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
13B-358
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR064COOLANT TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the engine coolant temperature in °C.
NOTESThere must be no present or stored faults.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (e.g. lack of power).
Use the Technical Note Wiring Diagram, Laguna II ph2, Vel Satis ph2, Mégane ll
ph2, Scénic ll ph2, Espace IV ph2.
Conformity check with engine stopped and ignition on.
With the ignition on the coolant temperature varies according to the exterior temperature.
In the event of a fault, consult the interpretation of fault DF001 Coolant temperature sensor circuit.
Parameter PR059: Inlet air temperature ≈ PR064 engine cold.
Conformity check with the engine running and engine coolant temperature > 80°C
With the engine running at idle speed the coolant temperature varies according to the engine temperature.
If there is a fault, refer to the interpretation of fault DF001.
EDC16CP33_V18_PR064 / EDC16CP33_V1C_PR064 / EDC16CP33_V54_PR064 / EDC16CP33_V20_PR064 / EDC16CP33_V58_PR064 /
EDC16CP33_V5C_PR064 / EDC16CP33_V24_PR064 / EDC16CP33_V04_PR064 / EDC16CP33_V08_PR064 / EDC16CP33_V44_PR064 /
EDC16CP33_V4C_PR064 / EDC16CP33_V34_PR064 / EDC16CP33_V38_PR064 / EDC16CP33_V74_PR064 / EDC16CP33_V28_PR064 /
EDC16CP33_V62_PR064 / EDC16CP33_V26_PR064 / EDC16CP33_V60_PR064
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
13B-359
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR064
CONTINUED
Sensor electrical conformity
Check the continuity and absence of interference resistance of the following connections:
•3C between components 120 and 244,
•3JK between components 120 and 244,
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.
Measure the resistance between the following connections:
•3C and 3JK of component 244.
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.
If the temperature sensor resistances are not between:
11332 Ω < X < 13588 Ω (at - 10°C),
2140 Ω < X < 2364 Ω (at + 25°C),
772 Ω < X < 850 Ω (at + 50°C),
275 Ω < X < 291 Ω (at + 80°C),
112 Ω < X < 118 Ω (at + 110°C),
replace the sensor.
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
13B-374V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR132AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the inlet air flow in kg/h.
NOTESThere must be no faults present.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– or after a customer complaint (lack of power, smoke etc.).
Use the Technical Note Wiring Diagram, Laguna II ph2, Vel Satis ph2, Mégane ll
ph2, Scénic ll ph2, Espace IV ph2.
Conformity check with engine stopped and ignition on.
The inlet air flow value must be:
PR132 = 0 kg/h.
Conformity check with the engine running and engine coolant temperature > 80°C
The inlet air flow value must be between:
20 kg/h < PR132 < 30 kg/h.
EDC16CP33_V18_PR132 / EDC16CP33_V1C_PR132 / EDC16CP33_V54_PR132 / EDC16CP33_V20_PR132 / EDC16CP33_V58_PR132 /
EDC16CP33_V5C_PR132 / EDC16CP33_V24_PR132 / EDC16CP33_V04_PR132 / EDC16CP33_V08_PR132 / EDC16CP33_V44_PR132 /
EDC16CP33_V4C_PR132 / EDC16CP33_V34_PR132 / EDC16CP33_V38_PR132 / EDC16CP33_V74_PR132 / EDC16CP33_V28_PR132 /
EDC16CP33_V62_PR132 / EDC16CP33_V26_PR132 / EDC16CP33_V60_PR132
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
13B-375V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR132
CONTINUED
Sensor electrical conformity
Check the air inlet circuit (from the air filter inlet to the inlet manifold,
apply Test 4 Turbocharged air inlet circuit check):
– air filter unit inlet not blocked and filter not clogged,
–visual inspection only, apply Test 4 of ALP 2 Starting fault or starting impossible,
– oil vapour recirculation circuit connection conformity.
–absence of leaks or blockages in the low and high pressure air circuits: pipes, presence and tightness of the
mounting clips, mounting of the turbocharger pressure sensor, intercooler, etc.
– check that the damper valve is not jammed closed.
Carry out the necessary repairs.
Check the electrical conformity of the air flowmeter:
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.
Check the continuity and absence of interference resistance of the following connections:
•3DV 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.
With the flowmeter connected, the vehicle ignition on, and the engine stopped:
Check the voltage between connections 3DW and 3DV of component 799.
If the air flow sensor voltage is not between 0.3 V < X < 0.7 V, replace the sensor.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
13B-439V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC004TURBOCHARGING SOLENOID VALVE
NOTESPerform this fault finding procedure:
– following interpretation of an unresolved fault or,
– following application of the interpretation of PR041 Turbocharging pressure or
– after a customer complaint (loss of power, smoke etc.).
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
1. The following procedure is for checking that the turbocharger and its control circuit are working
properly.
Preliminary operation
Check the high pressure air circuit is sealed:
Apply Test 4 Turbocharged air inlet circuit check or Test 3 Low pressure circuit check.
Pipe not joined or pierced, pressure sensor disconnected or poorly fitted (seal present), exchanger pierced.
To test the exchanger: stabilise the engine speed between 3500 and 4000 rpm with the vehicle stopped and
check that there are no leaks.
Measure the resistance between connections3FB and 3MG of component1475.
If the resistance is not between 18 Ω and 22 Ω at + 23°C, replace the turbocharging solenoid valve.
Check the continuity of the following connection:
•3MG between the components 120 and 1475.
Check the + 12 V after relay supply of the turbocharging solenoid valve on the following connection:
•3FB of component 1475.
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.
EDC16CP33_V18_AC004 / EDC16CP33_V1C_AC004 / EDC16CP33_V54_AC004 / EDC16CP33_V20_AC004 / EDC16CP33_V58_AC004 /
EDC16CP33_V5C_AC004 / EDC16CP33_V24_AC004 / EDC16CP33_V04_AC004 / EDC16CP33_V08_AC004 / EDC16CP33_V44_AC004 /
EDC16CP33_V4C_AC004 / EDC16CP33_V34_AC004 / EDC16CP33_V38_AC004 / EDC16CP33_V74_AC004 / EDC16CP33_V28_AC004 /
EDC16CP33_V62_AC004 / EDC16CP33_V26_AC004 / EDC16CP33_V60_AC004
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
13B-441V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC012DAMPER VALVE
NOTESCarry out this interpretation:
– after DF645 Damper valve position regulation, DF646 Damper valve position
sensor,
– or after a customer complaint (starting faults, poor performance).
Use the Wiring Diagram Technical Note, Laguna II ph2, Mégane ll, Scénic ll,
Espace IV ph2, Vel Satis ph2.
Measure the resistance between connections 38KQ and 38KP of component 1461.
If the resistance is not between 875 Ω and 1625 Ω replace the damper valve.
Check the continuity and absence of interference resistance of the following connections:
•38KQ between components 120 and 1461,
•38KP between components 120 and 1461.
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.
With the vehicle ignition on, and the engine stopped:
Make sure the damper flap is open,
If not, clean or replace the damper valve.
Actuate the valve using command AC012 and check the damper valve travel and rest position of the valve.
Check the operation of the computer output stage with a voltmeter in the alternating current position:
Actuate the valve with command AC012.
Connect the voltmeter earth lead to connection 38KS of component 1461 and the positive lead to connection
38KQ of component 1461.
The voltmeter should display three cycles of ON-OFF (12.5 V then return to 0V).
If the measurement is correct, replace the damper valve
If the measurement does not show any operation, contact the Techline.
EDC16CP33_V18_AC012 / EDC16CP33_V1C_AC012 / EDC16CP33_V54_AC012 / EDC16CP33_V20_AC012 / EDC16CP33_V58_AC012 /
EDC16CP33_V5C_AC012 / EDC16CP33_V24_AC012 / EDC16CP33_V04_AC012 / EDC16CP33_V08_AC012 / EDC16CP33_V44_AC012 /
EDC16CP33_V4C_AC012 / EDC16CP33_V34_AC012 / EDC16CP33_V38_AC012 / EDC16CP33_V74_AC012 / EDC16CP33_V28_AC012 /
EDC16CP33_V62_AC012 / EDC16CP33_V26_AC012 / EDC16CP33_V60_AC012
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
13B-442V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC031THERMOPLUNGER No. 3 RELAY
NOTESCheck that the computer is correctly configured using command LC056
Thermoplungers
There must be no present or stored faults:
Perform this fault finding procedure if there is a fault with the passenger compartment
heating - demisting.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
If the Thermoplunger no. 3 relay or the additional heater interface unit does not function when command
AC031 is run.
Check the condition of the thermoplunger 3 relay mounting on the engine fuse box or the additional heater
interface unit (see Wiring Diagram Technical Note, Vehicle, component code 1069 or 1550).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Vehicle, 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.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect the thermoplunger no. 3 relay and fit a 50 Ω to 100Ω resistor on its mounting instead of the coil and
connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal to connection 3JAB of component 1069 or 1550.
Run command AC031.
If the voltmeter indicates the battery voltage (4 ON-OFF cycles of 10 seconds), replace the thermoplunger no. 3
relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
EDC16CP33_V18_AC031 / EDC16CP33_V1C_AC031 / EDC16CP33_V54_AC031 / EDC16CP33_V20_AC031 / EDC16CP33_V58_AC031 /
EDC16CP33_V5C_AC031 / EDC16CP33_V24_AC031 / EDC16CP33_V04_AC031 / EDC16CP33_V08_AC031 / EDC16CP33_V44_AC031 /
EDC16CP33_V4C_AC031 / EDC16CP33_V34_AC031 / EDC16CP33_V38_AC031 / EDC16CP33_V74_AC031 / EDC16CP33_V28_AC031 /
EDC16CP33_V62_AC031 / EDC16CP33_V26_AC031 / EDC16CP33_V60_AC031
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.