2009 RENAULT TWINGO RS Engine Diesel Injection Workshop Manual

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.
V6 MR-413-X44-13B000$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.
V6 MR-413-X44-13B000$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.
V6 MR-413-X44-13B000$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.
V6 MR-413-X44-13B000$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-181
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.
V6 MR-413-X44-13B000$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR055ENGINE SPEED
PARAMETER
DEFINITIONThis parameter indicates the engine's rotational speed in rpm.
Conformity check with engine stopped and ignition on.
PR055 = 0 rpm.
In the event of a fault, consult the interpretation of faults DF195 Camshaft/engine speed sensor consistency
and DF005 Engine speed sensor circuit.
Conformity check: Engine running, engine coolant temperature > 80
°C
PR055 = 800 rpm (approx.).
In the event of a fault, consult the interpretation of faults DF195 Camshaft/engine speed sensor consistency
and DF005 Engine speed sensor circuit.
DCM1.2_V48_PR055/DCM1.2_V4C_PR055/DCM1.2_V50_PR055/DCM1.2_V54_PR055/DCM1.2_V58_PR055/DCM1.2_V5C_PR055

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.
V6 MR-413-X44-13B000$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.
V6 MR-413-X44-13B000$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-184
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.
V6 MR-413-X44-13B000$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR064COOLANT TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the engine coolant temperature in °C.
NOTESSpecial note:
Default value: 80 °C.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
Cold, PR064 = ambient temperature.
Check the condition of the coolant temperature sensor connections.
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.
If necessary, replace the coolant temperature sensor (see MR 417 Mechanical systems, 19A, Cooling,
Coolant temperature sensor: Removal - Refitting).
Measure the resistance between connections 3C and 3JK of component 244.
If the resistance of the coolant temperature sensor is not:
(theoretical values)
at – 40
°C: 68780 Ω < X < 82780 Ω
at – 10
°C: 11332 Ω < X < 13588 Ω
at 25
°C: 2140 Ω < X < 2364 Ω
at 50
°C: 772 Ω < X < 850 Ω
at 80
°C: 275 Ω < X < 291 Ω
at 110
°C: 112 Ω < X < 118 Ω
at 120
°C: 86 Ω < X < 90 Ω,
Replace the coolant temperature sensor, component code 244 (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, 19A, Cooling,
Coolant temperature sensor: Removal - Refitting).
DCM1.2_V48_PR064/DCM1.2_V4C_PR064/DCM1.2_V50_PR064/DCM1.2_V54_PR064/DCM1.2_V58_PR064/DCM1.2_V5C_PR064