RENAULT SCENIC 2010 J95 / 3.G Engine And Pheripherals DCM 1.2 Injection Workshop Manual

13B-171
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR005EGR VALVE OPENING VALUE REQUIRED
PARAMETER
DEFINITIONThis parameter indicates a theoretical opening value for the EGR valve giving optimum
engine performance.
Conformity check with engine stopped and ignition on
The EGR valve theoretical opening value for operation with the engine stopped and ignition on is:
- 10% < PR005 < 0%
Conformity check: Engine running, engine coolant temperature > 80
°C
The EGR valve theoretical opening value for operation with the engine running and the engine coolant
temperature > 80
°C is:
10% < PR005 < 40%
DCM1.2_V48_PR005/DCM1.2_V4C_PR005/DCM1.2_V50_PR005/DCM1.2_V54_PR005/DCM1.2_V58_PR005/DCM1.2_V5C_PR005
DIESEL INJECTION
Fault finding – Interpretation of parameters

13B-172
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR008RAIL REFERENCE PRESSURES
PARAMETER
DEFINITIONThis parameter indicates the theoretical rail pressure value for optimum engine
operation in bar.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
The theoretical rail pressure value is a setpoint of:
200 bar < PR008 < 400 bar
DCM1.2_V48_PR008/DCM1.2_V4C_PR008/DCM1.2_V50_PR008/DCM1.2_V54_PR008/DCM1.2_V58_PR008/DCM1.2_V5C_PR008

13B-173
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR010IDLE SPEED REGULATION SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the speed of rotation setpoint before last engine stop in rpm.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
At idle speed, the engine rotation speed must be between:
700 rpm < PR010 < 1300 rpm.
In the event of a fault, consult the interpretation of faults DF053 Rail pressure regulation function, DF007 Rail
pressure sensor circuit and DF024 Low pressure actuator control circuit.
DCM1.2_V48_PR010/DCM1.2_V4C_PR010/DCM1.2_V50_PR010/DCM1.2_V54_PR010/DCM1.2_V58_PR010/DCM1.2_V5C_PR010

13B-174
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR017FUEL FLOW
PARAMETER
DEFINITIONThis parameter indicates the fuel flow in mg/st.
Conformity check with engine stopped and ignition on.
PR017 = 0.0 mg/st.
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
Conformity check: Engine running, engine coolant temperature > 80
°C
PR017 = 5 mg/st.
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
DCM1.2_V48_PR017/DCM1.2_V4C_PR017/DCM1.2_V50_PR017/DCM1.2_V54_PR017/DCM1.2_V58_PR017/DCM1.2_V5C_PR017

13B-175
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR030ACCELERATOR PEDAL POSITION
PARAMETER
DEFINITIONThis parameter indicates the accelerator pedal position as a percentage.
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).
See the Wiring diagrams Technical Note for the vehicle.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
If no pressure is being applied to 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 code 3LR,
●connection code 3LS,
●connection code 3LT,
●connection code 3LU,
●connection code 3LW,
●connection code 3LV,
●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.
Pedal sensor connected, vehicle with ignition on and engine stopped:
–check the value of PR030:
●0% no load,
●100% full load,
●138% full load after kickdown point on pedal.
If the value is not correct, replace the accelerator pedal sensor, component code 921 (see MR 364 (Mégane II),
MR 370 (Scénic II), MR 385 (Modus), MR 392 (Clio III), MR 411 (New Twingo), MR 417 (Kangoo 2),
Mechanical, 37A, Mechanical component controls, Accelerator pedal: Removal - Refitting).
DCM1.2_V48_PR030/DCM1.2_V4C_PR030/DCM1.2_V50_PR030/DCM1.2_V54_PR030/DCM1.2_V58_PR030/DCM1.2_V5C_PR030

13B-176
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR032INLET PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the inlet pressure in bar.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
900 mbar < PR032 < 1100 mbar.
Local atmospheric pressure.
If the values are inconsistent, check with the engine stopped and ignition switched on that PR032 = PR035
Atmospheric pressure = local atmospheric pressure.
DCM1.2_V48_PR032/DCM1.2_V4C_PR032/DCM1.2_V50_PR032/DCM1.2_V54_PR032/DCM1.2_V58_PR032/DCM1.2_V5C_PR032

13B-177
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR035ATMOSPHERIC PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the atmospheric pressure in mbar.
NOTESSpecial notes:
the sensor is built into the computer.
Conformity check: Engine stopped and the ignition on, or the engine running and the engine coolant
temperature > 80
°C
The atmospheric pressure value is:
800 mbar < PR035 < 1200 mbar.
In the event of a fault, consult the interpretation of DF003 Atmospheric pressure sensor circuit.
DCM1.2_V48_PR035/DCM1.2_V4C_PR035/DCM1.2_V50_PR035/DCM1.2_V54_PR035/DCM1.2_V58_PR035/DCM1.2_V5C_PR035

13B-178
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR037REFRIGERANT PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the refrigerant fluid pressure in bar; it varies according to the
operating mode.
NOTESSpecial notes:
Defect value: 0 bar.
Conformity check: Engine running, engine coolant temperature > 80
°C
The value should be between:
1 bar < PR037 < 32.4 bar
In the event of a fault, consult the interpretation of fault DF049 Refrigerant sensor circuit.
DCM1.2_V48_PR037/DCM1.2_V4C_PR037/DCM1.2_V50_PR037/DCM1.2_V54_PR037/DCM1.2_V58_PR037/DCM1.2_V5C_PR037

13B-179
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR038RAIL 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 a customer complaint (starting problems, poor performance, stalling, etc.).
Special note:
Default value: 2000 bar.
See the Wiring diagrams Technical Note for the vehicle.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
Cold, PR038 = 1 bar.
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
DCM1.2_V48_PR038/DCM1.2_V4C_PR038/DCM1.2_V50_PR038/DCM1.2_V54_PR038/DCM1.2_V58_PR038/DCM1.2_V5C_PR038

13B-180
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR051EGR VALVE POSITION FEEDBACK
PARAMETER
DEFINITIONThis parameter indicates the EGR valve opening ratio.
NOTESThere 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.).
Special note:
Default value: 0%.
See the Wiring diagrams Technical Note for the vehicle.
Conformity check: 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 fault DF209 EGR valve position sensor circuit.
Sensor electrical conformity
Check for continuity and absence of interference resistance of the following connections:
●connection code 3JM,
●connection code 3EL,
●connection code 3GC,
●between components 120 and 1460.
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 fault is still present, contact the Techline.
DCM1.2_V48_PR051/DCM1.2_V4C_PR051/DCM1.2_V50_PR051/DCM1.2_V54_PR051/DCM1.2_V58_PR051/DCM1.2_V5C_PR051