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

13B-122
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$120.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF886
PRESENT OR
STOREDPRESENCE OF WATER IN THE DIESEL FUEL
NOTESPriorities when dealing with a number of faults:
–DF057 Water in diesel fuel detector circuit,
Special notes:
If water is detected downstream of the diesel filter, the high pressure pump and
the injectors may be damaged.
The level 1 warning light is illuminated.
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
See the Technical Note Wiring Diagrams for the vehicle.
If there is water present, bleed the diesel filter.
If there is a great amount of water, run the first part of Test 13: Diesel fuel conformity check (Is the fuel cloudy
or does it separate into 2 parts?)
Check the connections of the water in diesel fuel sensor, component code 414.
Check the connections of the engine management computer grey connector, component code 120.
If the connector(s) are faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
With the ignition on, check for +12 V on connections 3FB1 or 3FB2 (for New Twingo) or AP15 (for Kangoo 2) of
component 414.
Check for earth on connections M or 3WU (only for New Twingo) of component 120.
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 the wiring.
DCM1.2_V48_DF886/DCM1.2_V4C_DF886/DCM1.2_V50_DF886/DCM1.2_V54_DF886/DCM1.2_V58_DF886/DCM1.2_V5C_DF886

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-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

13B-182
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
PR059INLET AIR TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the inlet air temperature in °C.
NOTESSee the Wiring diagrams Technical Note for the vehicle.
Conformity check: Engine stopped, ignition on or engine running.
Check the condition of the air temperature/pressure sensor connectors (flowmeter).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance between connections 3B and 3DW of the air flowmeter.
If the resistance of the air temperature / pressure sensor is not:
(theoretical values)
3553 Ω < R < 3875 Ω at 10
°C
2353 Ω < R < 2543 Ω at 20
°C
1613 Ω < R < 1729 Ω at 30
°C,
replace the air temperature/pressure sensor (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, 12A, Fuel mixture, Air flowmeter:
Removal - Refitting).
DCM1.2_V48_PR059/DCM1.2_V4C_PR059/DCM1.2_V50_PR059/DCM1.2_V54_PR059/DCM1.2_V58_PR059/DCM1.2_V5C_PR059

13B-183
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
PR063FUEL TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the fuel temperature in °C.
NOTESSpecial notes:
Default value: 40
°C.
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).
See the Wiring diagrams Technical Note for the vehicle.
Conformity check: Engine stopped and the ignition on, or the engine running and the engine coolant
temperature > 80
°C
- 30
°C < PR063 < 90°C.
In the event of a fault, consult the interpretation of fault DF098 Fuel temperature sensor circuit.
Sensor electrical conformity
Check the continuity and absence of interference resistance of the following connections:
–Connection code 3FAB,
–Connection code 3LD,
–between components 120 and 1066.
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.
Measure the resistance between connections 3FAB and 3LD of component 1066.
If its resistance is not:
3538 Ω < R < 4102 Ω at + 10
°C
1950 Ω < R < 2150 Ω at + 25
°C
763 Ω < R < 857 Ω at + 50
°C,
replace the fuel temperature sensor, component code 1066 (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, 13B, Diesel Injection,
Fuel temperature sensor: Removal - Refitting).
DCM1.2_V48_PR063/DCM1.2_V4C_PR063/DCM1.2_V50_PR063/DCM1.2_V54_PR063/DCM1.2_V58_PR063/DCM1.2_V5C_PR063

13B-192
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
PR132AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the inlet air flow in mg/st.
NOTESSpecial notes:
For vehicles that are not equipped with a flowmeter, the air flow is estimated using
the following parameters:
–Inlet air temperature,
–The atmospheric pressure,
–The EGR valve position,
–The fuel flow,
–The engine speed.
There must be no faults present.
Perform this fault finding procedure:
–after finding an inconsistency in the parameter,
–or after a customer complaint (lack of power, smoke etc.).
See the Wiring diagrams Technical Note for the vehicle.
Conformity check with engine stopped and ignition on.
Indicates the inlet air flow PR132 ≈ 0 mg/st.
Conformity check: Engine running at idle speed and engine coolant temperature > 80
°C
Indicates the inlet air flow PR132 ≈ 200 mg/st.
DCM1.2_V48_PR132/DCM1.2_V4C_PR132/DCM1.2_V50_PR132/DCM1.2_V54_PR132/DCM1.2_V58_PR132/DCM1.2_V5C_PR132