Page 187 of 329

13B-187
MR-372-J84-13B050$663.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Parameter summary table13B
Tool parameter Diagnostic tool title
PR125Power absorbed by the AC* compressor Vdiag 44 and 48 only
PR128First EGR valve offset
PR129Last EGR valve offset
PR130Cruise control setpoint
PR132Air flow
PR171Air flow setpoint for EGR Vdiag 44 and 48 only
PR190Engine idle speed setpoint.
PR224Turbocharging pressure sensor voltage Vdiag 44 and 48 only
PR228Injector control capacitor voltage
PR364Cylinder no. 1 fuel flow correction
PR365Cylinder no. 4 fuel flow correction
PR381Particle filter downstream temperature
Vdiag 4D, 45 and 49 only PR382Particle filter upstream temperature
PR383Weight of soot in the particle filter
PR391Mileage since particle filter replacement
PR400New EGR valve offset
PR405Cylinder no. 2 fuel flow correction
PR406Cylinder no. 3 fuel flow correction
PR412Mileage at last successful regeneration
Vdiag 4D, 45 and 49 only PR414Particle filter diff* pressure
PR415Time since last regeneration
PR513Mileage counter for level 1 warning light
PR514Mileage counter for level 2 warning light
PR634Air flow request
PR667Turbine upstream temperature
Vdiag 4D, 45 and 49 only PR668Turbine upstream temperature sensor voltage
PR669Particle filter diff* press* sens* voltage
PR670Particle filter upstream temp* sens* voltage
PR671Particle filter downstream temp* sens* voltage
PR672Damper valve position setpoint Vdiag 44 and 48 only
*AC: air conditioning system
*diff: differential*sens: sensor
*temp: temperature*press: pressure
Page 190 of 329
13B-190
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR008
RAIL REFERENCE PRESSURES
PARAMETER
DEFINITIONThis parameter indicates the theoretical rail pressure value for optimum engine
operation in bar.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with the engine running and engine coolant temperature > 80°C
The theoretical rail pressure value is a setpoint of:
200 bar < PR008 < 300 bar
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR008/SID304_V45_PR008/SID301_V48_PR008/SID304_V49_PR008/SID304_V4D_PR008/SID301_V4C_PR008
Page 191 of 329

13B-191
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR009
TURBOCHARGING PRESSURE SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the theoretical turbocharging pressure setpoint value for
optimal engine performance in mbar.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with the engine running at idle speed and engine coolant temperature > 80°C
The theoretical turbocharging pressure value is a setpoint of:
PR009 Turbocharging pressure setpoint = PR041 Turbocharging pressure.
This parameter is only valid when the engine is running.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR009/SID304_V45_PR009/SID301_V48_PR009/SID304_V49_PR009/SID304_V4D_PR009/SID301_V4C_PR009
Page 196 of 329

13B-196
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR030
ACCELERATOR PEDAL POSITION
PARAMETER
DEFINITIONThis parameter indicates the accelerator pedal position in %.
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 (e.g. lack of power).
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
Diagrams Technical Notes.
Conformity check with the engine stopped and the ignition on, or the engine running and the engine
coolant temperature > 80°C
If no pressure is exerted on the pedal PR030 = 0%.
In the event of a fault, refer to the interpretation of fault DF008 Pedal potentiometer circuit gang 1 or
DF009 Pedal potentiometer circuit gang 2.
Sensor electrical conformity
Check the continuity and absence of interference resistance of the following connections:
– connection code3LR,
– connection code3LS,
– connection code3LT,
– connection code3LU,
– connection code3LW,
– connection code3LV,
between components 120 and 921.
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.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR030/SID304_V45_PR030/SID301_V48_PR030/SID304_V49_PR030/SID304_V4D_PR030/SID301_V4C_PR030
Page 198 of 329

13B-198
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR035
ATMOSPHERIC 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 the engine stopped and the ignition on, or the engine running and the engine
coolant temperature > 80°C
The atmospheric pressure value must be between:
0.8 bar < PR035 < 1.2 bar.
In the event of a fault, consult the interpretation of DF003 Atmospheric pressure sensor circuit.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR035/SID304_V45_PR035/SID301_V48_PR035/SID304_V49_PR035/SID304_V4D_PR035/SID301_V4C_PR035
Page 199 of 329
13B-199
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR037
REFRIGERANT PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the refrigerant fluid pressure in bar; it varies according to the
operating mode.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with the engine running and engine coolant temperature > 80°C
The value should be between:
1 bar < PR037 < 35 bar
In the event of a fault, consult the interpretation of fault DF049 Refrigerant sensor circuit.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR037/SID304_V45_PR037/SID301_V48_PR037/SID304_V49_PR037/SID304_V4D_PR037/SID301_V4C_PR037
Page 200 of 329

13B-200
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR038
RAIL PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the fuel pressure in the rail in bars.
NOTESThere must be no present or stored faults.
Perform this fault finding procedure:
– after an inconsistency appears on the Parameter screen,
– following the activation of command AC003 Fuel pressure solenoid valve,
– following a customer complaint (starting problems, poor performance, stalling, etc.).
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
Diagrams Technical Notes.
Conformity check with the engine stopped and the ignition on, or the engine running and the engine
coolant temperature > 80°C
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3LX between components 1032 and 120,
–3LY between components 1032 and 120,
–3LZ between components 1032 and 120.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If all these connections are correct, check for the fuel pressure sensor supply:
+ 5 V on connection code 3LX between components 1032 and 120,
Earth on connection code 3LZ between components 1032 and 120.
If the connection(s) are faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the low and high pressure diesel circuit sealing (visual checks, odours): on pump body, pressure release
valve, pipes, rail and injector unions, injector wells, etc.
If all the above checks are correct:
With the vehicle ignition on, and engine stopped for over 1 minute:
Display PR038; if the value is lower than 30 bar, the sensor is correct.
Otherwise replace the rail pressure sensor (see MR 392, 385, 364, 370
and 417 Mechanical, 13B, Diesel
injection, Rail pressure sensor: Removal - Refitting).
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR038/SID304_V45_PR038/SID301_V48_PR038/SID304_V49_PR038/SID304_V4D_PR038/SID301_V4C_PR038
Page 201 of 329

13B-201
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR040
LINEARISED RAIL PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the linearised rail 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 stopped and ignition on.
PR040 = 7 bar
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
Conformity check with the engine running and engine coolant temperature > 80°C
PR040 = 230 bar
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR040/SID304_V45_PR040/SID301_V48_PR040/SID304_V49_PR040/SID304_V4D_PR040/SID301_V4C_PR040