2011 RENAULT SCENIC check engine

13B-227
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR037
REFRIGERANT PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the atmospheric pressure in bar. The sensor is integrated in
the computer.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine running, engine coolant temperature > 80°C.
The value must be between (Vdiag 50, 58 and 5C only):
1 bar < PR037 < 27 bar
In the event of a fault, refer to the interpretation of fault DF049 “Refrigerant sensor circuit”.
The value must be between (Vdiag 18, 1C and 20 only):
1 bar < PR037 < 40 bar
In the event of a fault test the multiplex network.
Conformity check with engine stopped and ignition on.
The value must be between (Vdiag 50, 58 and 5C only):
2 bar < PR037 < 27 bar
In the event of a fault, refer to the interpretation of fault DF049 “Refrigerant sensor circuit”.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V50_PR037/EDC16_V58_PR037/EDC16_V5C_PR037/EDC16_V18_PR037/EDC16_V1C_PR037/EDC16_V20_PR037

13B-228
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR038
RAIL PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the rail pressure in bar.
NOTESNo faults should be present or stored.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (starting faults, poor performance, stalling, etc.).
– after interpretation of command AC225 Rail pressure regulator.
Special notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
The rail pressure value is between:
0 < PR038 < 10 bar
Default value: 250 bar.
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
Conformity check with engine running, engine coolant temperature > 80°C.
The rail pressure value is (engine at idle speed):
PR038 = ~ 315 bar
Default value: 250 bar.
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR038/EDC16_V58_PR038/EDC16_V5C_PR038/EDC16_V18_PR038/EDC16_V1C_PR038/EDC16_V20_PR038

13B-229
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR038
CONTINUED
Sensor electrical conformity.
Check the condition of the rail pressure sensor connector (see Wiring Diagram Technical Note, Vehicle,
component code 1032).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Vehicle, component code 120).
If one of the connectors is 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.
Check the continuity and absence of interference resistance of the following connections:
– connection code 3LX,
– connection code 3LY,
– connection code 3LZ.
Between components 120 and 1032.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
Check that there are no external diesel leaks from the high pressure fuel circuit.
With the ignition on and the engine stopped for over 1 minute:
Display parameter PR038.
– If the pressure is below 90 bar, the sensor is in order.
– If the pressure is above 90 bar, contact the Techline.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-230
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR041
TURBOCHARGING PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the turbocharging pressure in mbar.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C.
The turbocharging pressure value is:
PR041 = PR035 “Atmospheric pressure” ± 10 mbar
In the event of a fault, apply the interpretation of DF004 Turbocharging pressure sensor circuit.
Sensor electrical conformity.
Check the continuity and absence of interference resistance on the following connections:
For Mégane II and Scénic II:
– connection code 3LQ,
– connection code 3LP,
– connection code 3LN.
Between components 120 and 1071.
For Laguna II:
– connection code 3LQ,
– connection code 3LP,
– connection code 3LN.
Between components 120 and 1474.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V50_PR041/EDC16_V58_PR041/EDC16_V5C_PR041/EDC16_V18_PR041/EDC16_V1C_PR041/EDC16_V20_PR041

13B-231
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR041
CONTINUED
Vehicle with ignition on, and the engine stopped for over 1 minute:
Compare the values of PR041 and PR035 Atmospheric pressure.
If the difference between PR041 and PR035 Atmospheric pressure is greater than 0.1 bar,
check the value of PR035 Atmospheric pressure by comparing it with the reading on a vehicle in the workshop
which is correct.
If the value of PR035 Atmospheric pressure is not correct (difference greater than 0.1 bar between
the 2 vehicles), contact the Techline.
Otherwise (when the value PR035 Atmospheric pressure is correct), change the turbocharging pressure
sensor.
If the difference between PR041 and PR035 Atmospheric pressure is less than 0.1 bar.
Start the engine, with the engine idling:
Compare the values of PR041 and PR035 Atmospheric pressure.
If the difference between PR041 and PR035 Atmospheric pressure is greater than 0.2 bar.
Check the air inlet circuit:
absence of leaks or blockages in the low and high pressure air circuit: ducts, presence and tightness of the
mounting clips, mounting of the turbocharger pressure sensor, intercooler, etc.
Check that the damper valve is not jammed closed.
Repair if necessary.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-232
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
*OCR: * Opening Cycle RatioPR047
TURBO PRESSURE OCR*
PARAMETER
DEFINITIONThis parameter indicates the turbocharger pressure opening cyclic ratio in %.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Engine running, engine coolant temperature > 80°C.
The value must be between 60% < PR047 < 90%.
The Opening Cyclic Ratio should be identical to the correction of the solenoid valve position
Conformity check with engine stopped and ignition on.
This value must be PR047 < 5%.
The Opening Cyclic Ratio should be identical to the correction of the solenoid valve position
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR047/EDC16_V58_PR047/EDC16_V5C_PR047/EDC16_V18_PR047/EDC16_V1C_PR047/EDC16_V20_PR047

13B-233
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
*OCR: Opening cyclic ratioPR048
RAIL PRESSURE REGULATION VALVE OCR*
PARAMETER
DEFINITIONThis parameter indicates the turbocharger pressure opening cyclic ratio in %.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Engine running, engine coolant temperature > 80°C.
The value must be between 35% < PR048 < 45%
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
Engine stopped, ignition on.
The value must be PR048 = 15%.
In the event of a fault, consult the interpretation of faults DF007 Rail pressure sensor circuit and DF053 Rail
pressure regulation function.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR048/EDC16_V58_PR048/EDC16_V5C_PR048/EDC16_V18_PR048/EDC16_V1C_PR048/EDC16_V20_PR048

13B-234
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR051
EGR VALVE POSITION FEEDBACK
PARAMETER
DEFINITIONThis parameter indicates the EGR valve opening ratio.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
No faults should be present or stored.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (loss of power, smoke etc.).
– after interpretation of command AC103 EGR by-pass.
Conformity check with engine stopped and ignition on.
The value must be between – 10% < PR051 < 0%.
In the event of a fault, consult the interpretation of fault DF118 EGR solenoid valve servo-control.
Engine running, engine coolant temperature > 80°C.
The value must be between 10% < PR051 < 40%.
In the event of a fault, consult the interpretation of fault DF118 EGR solenoid valve servo-control.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR051/EDC16_V58_PR051/EDC16_V5C_PR051/EDC16_V18_PR051/EDC16_V1C_PR051/EDC16_V20_PR051