2011 RENAULT SCENIC engine

13B-275
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR037REFRIGERANT PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the atmospheric pressure in mbar. The sensor is integrated in
the computer.
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 1 bar < PR037 < 40 bar
In the event of a fault, test the multiplex network (see 88B, Multiplex).
EDC16C36_V44_PR037/EDC16C36_V4C_PR037/EDC16C36_V48_PR037/EDC16C36_V50_PR037/EDC16C36_V54_PR037/
EDC16C36_V58_PR037EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-276
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR038RAIL PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the rail pressure in bar.
NOTESThere must be no present or stored faults.
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.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Conformity check with engine stopped and ignition on
The rail pressure value is:
0 bar < PR038 < 90 bar if the coolant temperature < 30°C
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:
At idle speed: PR038 = 270 bar ± 20 bar
Full load: PR038 = 1700 bar ± 20 bar
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
EDC16C36_V44_PR038/EDC16C36_V4C_PR038/EDC16C36_V48_PR038/EDC16C36_V50_PR038/EDC16C36_V54_PR038/
EDC16C36_V58_PR038EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-277
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR038
CONTINUED
Sensor electrical conformity
Check the status of the connector of the rail pressure sensor (see Wiring Diagram Technical Note, Mégane II
ph2, Scénic II ph2, Component code 1032).
Check the status of the connector of the rail pressure sensor (see Wiring Diagram Technical Note, 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 absence of interference resistance on 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 is no external diesel leak 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.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-278
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR041TURBOCHARGING 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.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
The turbocharging pressure value is PR041 = PR035 ± 0.20 bar
In the event of a fault, consult the interpretation of DF004 Turbocharging pressure sensor circuit.
EDC16C36_V44_PR041/EDC16C36_V4C_PR041/EDC16C36_V48_PR041/EDC16C36_V50_PR041/EDC16C36_V54_PR041/
EDC16C36_V58_PR041EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-279
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR041
CONTINUED
Sensor electrical conformity
Check the continuity and absence of interference resistance on the following connections:
– connection code 3LQ,
– connection code 3LP,
– connection code 3LN.
between components 120 and 1071.
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.
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 greater 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:
The low and high pressure air circuit is sealed and not obstructed: the pipes and mounting clamps are present
and tightened, turbocharging pressure sensor, intercooler, etc. are fitted.
Check that the damper valve is not jammed closed.
Repair if necessary.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-280
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR045POWER REQUESTED BY THERMOPLUNGERS
PARAMETER
DEFINITIONThis parameter indicates the power consumed by the thermoplungers in watts.
NOTESSpecial note:
Only perform these tests if the parameters do not correspond with the system
operation programming.
This parameter exists on certain vehicles in Vdiag 48 (depending on equipment).
Engine running, engine coolant temperature > 80°C, with no electrical consumers
0 If the parameter value is not within this range, consult the interpretation of faults:
– DF032 Thermoplunger 1 relay control circuit,
– DF033 Thermoplunger 2 relay control circuit,
– DF034 Thermoplunger 3 relay control circuit.
Engine stopped, ignition on
PR045=0W
In the event of a fault, consult the interpretation of faults:
– DF032 Thermoplunger 1 relay control circuit,
– DF033 Thermoplunger 2 relay control circuit,
– DF034 Thermoplunger 3 relay control circuit.
EDC16C36_V48_PR045/EDC16C36_V58_PR045EDC16 C36
Program No.: 91
Vdiag No.: 48, 58

13B-281
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
* OCR: opening cycle ratio
PR048RAIL 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 should 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.
EDC16C36_V44_PR048/EDC16C36_V4C_PR048/EDC16C36_V48_PR048/EDC16C36_V50_PR048/EDC16C36_V54_PR048/
EDC16C36_V58_PR048EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-282
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V9 MR-372-J84-13B450$151.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR051EGR 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.
There must be no present or stored faults.
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.
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
This parameter indicates the EGR valve opening ratio.
In the event of a fault, consult the interpretation of faults DF209 EGR valve position sensor circuit and DF647
EGR valve position regulation.
EDC16C36_V44_PR051/EDC16C36_V4C_PR051/EDC16C36_V48_PR051/EDC16C36_V50_PR051/EDC16C36_V54_PR051/
EDC16C36_V58_PR051EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58