Page 361 of 510

13B-361
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
PR077EGR VALVE POSITION SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the EGR valve position sensor voltage in volts.
NOTESNone.
Conformity check: Engine stopped and ignition on
The EGR valve position sensor voltage value must be between:
0 < PR077 < 1.5 V
The default value is: X = 0 V
In the event of a fault, refer to the interpretation of fault DF012 Sensor supply voltage no. 2.
Engine running, engine coolant temperature > 80°C, with no electrical consumers
The EGR valve position sensor voltage value must be between:
0 V < PR077 < 5 V
The default value is: X = 0 V
In the event of a fault, refer to the interpretation of fault DF012.
EDC16CP33_V18_PR077 / EDC16CP33_V1C_PR077 / EDC16CP33_V54_PR077 / EDC16CP33_V20_PR077 / EDC16CP33_V58_PR077 /
EDC16CP33_V5C_PR077 / EDC16CP33_V24_PR077 / EDC16CP33_V04_PR077 / EDC16CP33_V08_PR077 / EDC16CP33_V44_PR077 /
EDC16CP33_V4C_PR077 / EDC16CP33_V34_PR077 / EDC16CP33_V38_PR077 / EDC16CP33_V74_PR077 / EDC16CP33_V28_PR077 /
EDC16CP33_V62_PR077 / EDC16CP33_V26_PR077 / EDC16CP33_V60_PR077
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 370 of 510

13B-370
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
OCR*: Opening Cyclic Ratio
SV*: Solenoid valve
PR104TURBOCHARGING SV* OCR* SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the turbocharging solenoid valve opening ratio percentage.
NOTESNone.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
PR104 ≈ PR846 TURBOCHARGING SOLENOID VALVE OCR, these 2 values must be similar.
In the event of a fault, consult the interpretation of fault DF054 EGR valve position sensor circuit.
EDC16CP33_V18_PR104 / EDC16CP33_V1C_PR104 / EDC16CP33_V54_PR104 / EDC16CP33_V20_PR104 / EDC16CP33_V58_PR104 /
EDC16CP33_V5C_PR104 / EDC16CP33_V24_PR104 / EDC16CP33_V04_PR104 / EDC16CP33_V08_PR104 / EDC16CP33_V44_PR104 /
EDC16CP33_V4C_PR104 / EDC16CP33_V34_PR104 / EDC16CP33_V38_PR104 / EDC16CP33_V74_PR104 / EDC16CP33_V28_PR104 /
EDC16CP33_V62_PR104 / EDC16CP33_V26_PR104 / EDC16CP33_V60_PR104
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 371 of 510

13B-371
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
PR128FIRST EGR VALVE OFFSET
PARAMETER
DEFINITIONThis parameter indicates the closing ratio of the EGR valve for the first offset of
the EGR valve.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
The EGR valve closure value during the first EGR valve offset must be between:
15% < PR128 < 25%.
PR128 ≈ PR129 Last EGR valve offset, these 2 values should be similar.
In the event of a fault, see the interpretation of faults DF209 EGR valve position sensor circuit and DF647 EGR
valve position regulation.
EDC16CP33_V18_PR128 / EDC16CP33_V1C_PR128 / EDC16CP33_V54_PR128 / EDC16CP33_V20_PR128 / EDC16CP33_V58_PR128 /
EDC16CP33_V5C_PR128 / EDC16CP33_V24_PR128 / EDC16CP33_V04_PR128 / EDC16CP33_V08_PR128 / EDC16CP33_V44_PR128 /
EDC16CP33_V4C_PR128 / EDC16CP33_V34_PR128 / EDC16CP33_V38_PR128 / EDC16CP33_V74_PR128 / EDC16CP33_V28_PR128 /
EDC16CP33_V62_PR128 / EDC16CP33_V26_PR128 / EDC16CP33_V60_PR128
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 372 of 510

13B-372
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
PR129LAST EGR VALVE OFFSET
PARAMETER
DEFINITIONThis parameter indicates the closing ratio of the EGR valve for the first EGR valve offset.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
The EGR valve closure value during the last EGR valve offset must be between:
15% < PR129 < 25%.
PR128 First EGR valve offset ≈ PR129, these 2 values should be similar.
In the event of a fault, consult the interpretation of faults DF209 EGR valve position sensor circuit and DF647
EGR valve position regulation.
EDC16CP33_V18_PR129 / EDC16CP33_V1C_PR129 / EDC16CP33_V54_PR129 / EDC16CP33_V20_PR129 / EDC16CP33_V58_PR129 /
EDC16CP33_V5C_PR129 / EDC16CP33_V24_PR129 / EDC16CP33_V04_PR129 / EDC16CP33_V08_PR129 / EDC16CP33_V44_PR129 /
EDC16CP33_V4C_PR129 / EDC16CP33_V34_PR129 / EDC16CP33_V38_PR129 / EDC16CP33_V74_PR129 / EDC16CP33_V28_PR129 /
EDC16CP33_V62_PR129 / EDC16CP33_V26_PR129 / EDC16CP33_V60_PR129
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 377 of 510

13B-377V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR171AIR FLOW SETPOINT FOR EGR
PARAMETER
DEFINITIONThis parameter indicates the fuel flow setpoint in mg/st.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
Indicates the air flow required by the EGR valve
EDC16CP33_V18_PR171 / EDC16CP33_V1C_PR171 / EDC16CP33_V54_PR171 / EDC16CP33_V20_PR171 / EDC16CP33_V58_PR171 /
EDC16CP33_V5C_PR171 / EDC16CP33_V24_PR171 / EDC16CP33_V04_PR171 / EDC16CP33_V08_PR171 / EDC16CP33_V44_PR171 /
EDC16CP33_V4C_PR171 / EDC16CP33_V34_PR171 / EDC16CP33_V38_PR171 / EDC16CP33_V74_PR171 / EDC16CP33_V28_PR171 /
EDC16CP33_V62_PR171 / EDC16CP33_V26_PR171 / EDC16CP33_V60_PR171
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.
Page 410 of 510
13B-410V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
OCR*: Opening Cyclic Ratio
SV*: Solenoid valve
PR846TURBOCHARGING SV* OCR*
PARAMETER
DEFINITIONThis parameter indicates the turbocharging solenoid valve opening ratio percentage.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
PR846 ≈ PR104 Turbocharging solenoid valve OCR, these 2 values must be similar.
In the event of a fault, consult the interpretation of fault DF054 EGR valve position sensor circuit.
EDC16CP33_V04_PR846 / EDC16CP33_V08_PR846 / EDC16CP33_V44_PR846 / EDC16CP33_V4C_PR846 / EDC16CP33_V34_PR846 /
EDC16CP33_V38_PR846 / EDC16CP33_V74_PR846 / EDC16CP33_V26_PR846 / EDC16CP33_V28_PR846 / EDC16CP33_V60_PR846 /
EDC16CP33_V62_PR846
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 26, 28,
34, 38, 44, 4C, 74, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 422 of 510

13B-422V12 MR-372-J84-13B300$140.mif
13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
NOTESThe commands are run to check the correct operation of certain components or to
replace parts.
Tool command Diagnostic tool title
SC001Write saved data
SC002Enter injector codes
SC003Save computer data
SC017Particle filter regeneration (except Vdiag 18, 04, 08, 44, 4C, 34, 38, 74)
SC031Operational fault finding of cylinders (except Vdiag 18)
SC035High pressure fuel circuit fault finding
SC036Reinitialise programming
RZ001Fault memory
RZ005Programming
RZ034Computer memory
AC004Turbocharging solenoid valve
AC012Damper valve
AC031Thermoplunger No. 3 relay
AC037Preheating relay
AC063Thermoplunger No. 1 relay
AC064Thermoplunger No. 2 relay
AC103EGR by-pass
AC153High speed fan assembly (except Mégane II ph2 and Scénic II ph2)
AC154Low speed fan assembly (except Mégane II ph2 and Scénic II ph2).
AC195Electric coolant pump (except Vdiag 04, 08, 44, 4C, 34, 38, 74)
AC225Rail pressure regulator
AC226Pump pressure regulator.
MT001Turbocharging function (Vdiag 04 and 44 only)
VP010Write VIN
VP036Fuel supply inhibited
DIESEL INJECTION
Fault finding – Command summary table
Page 423 of 510

13B-423V12 MR-372-J84-13B300$150.mif
13B
SC001WRITE SAVED DATA
NOTESTo use this command, first save the data with the SC003 Save computer data
command.
The writing is carried out after the computer has been reprogrammed or replaced.
Engine stopped.
In the diagnostic tool, select scenario SC001.
Note:
If no files have been saved before, a write error appears when command SC001 is activated.
Validating this command writes the data saved using command SC003 Save computer data.
The data is as follows:
– vehicle-specific idling,
– injector codes,
– various offsets for components, EGR, damper valve,
– options available on the vehicle and generated by the computer.
This data will configure the computer and will prevent:
– engine malfunction after reprogramming or replacing the computer,
– incorrect interpretation of the information provided by the diagnostic tool.
EDC16CP33_V18_SC001 / EDC16CP33_V1C_SC001 / EDC16CP33_V54_SC001 / EDC16CP33_V20_SC001 / EDC16CP33_V58_SC001 /
EDC16CP33_V5C_SC001 / EDC16CP33_V24_SC001 / EDC16CP33_V04_SC001 / EDC16CP33_V08_SC001 / EDC16CP33_V44_SC001 /
EDC16CP33_V4C_SC001 / EDC16CP33_V34_SC001 / EDC16CP33_V38_SC001 / EDC16CP33_V74_SC001 / EDC16CP33_V28_SC001 /
EDC16CP33_V62_SC001 / EDC16CP33_V26_SC001 / EDC16CP33_V60_SC001
DIESEL INJECTION
Fault finding – Interpretation of commands
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.