2009 RENAULT TWINGO Engine Diesel Injection Workshop Manual

13B-33
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF003
CONTINUED
Check the insulation and continuity of the following connections:
On K9K 740 engines only:
–AP29 between components 120 and 1016,
–NH between component 120 and earth,
–3FB between components 120 and 238.
For the other engine suffixes:
–AP15 between components 120 and 1337,
–NH or N between component 120 and earth,
–3FB between components 120 and 1337,
–3FB1 between components 120 and 1337,
–3FB2 between components 120 and 1337.
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.
If the fault is still present, contact the Techline.

13B-34
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF005
PRESENT
OR STOREDENGINE SPEED SENSOR CIRCUIT1.DEF: Inconsistency
2.DEF: No signal
3.DEF: Too many additional teeth
4.DEF: Teeth missing
5.DEF: Additional teeth
6.DEF: Too many teeth missing
NOTESSpecial note:
If 1.DEF, 2.DEF, 3.DEF, or 6.DEF is present: the engine stops and the level 2 warning
light illuminates, with the message Faulty injection displayed on the instrument panel.
If 4.DEF or 5 DEF is present: the engine performance is reduced to 75% and the level
1 warning light illuminates.
Conditions for applying fault finding procedures to stored faults:
The fault is present when the starter motor is operating or the engine is running at idle
speed.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the engine speed sensor connector, component code 149.
Check the connection and condition of connector B of the injection computer, component code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance of the engine speed sensor, component code 149 between connections 3BL and 3BG.
If the resistance of the engine speed sensor, component code 149 is not between 510 Ω et 850 Ω (at 20
°C), replace
the engine speed 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, 13B Diesel injection, Crankshaft position sensor:
Removal - Refitting).
Check the insulation and continuity of the following connections:
–3BG between components 149 and 120,
–3BL between components 149 and 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.
If the fault is still present, replace the engine speed sensor, component code 149 (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, Crankshaft position sensor: Removal - Refitting).
If the fault is still present, contact the Techline.
DCM1.2_V48_DF005/DCM1.2_V4C_DF005/DCM1.2_V50_DF005/DCM1.2_V54_DF005/DCM1.2_V58_DF005/DCM1.2_V5C_DF005

13B-35
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF007
PRESENT
OR STOREDRAIL PRESSURE SENSOR CIRCUITCC.0: Short circuit to earth
C0.1: Open circuit or short circuit to +12 V
1.DEF: Inconsistency
2.DEF: Below minimum threshold
3.DEF: Above maximum threshold
4.DEF: Value outside permitted tolerance
NOTESPriority for dealing with a combination of faults:
–DF113 Sensor supply voltage.
Conditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine starts.
Special note:
If fault DF007 is present: the engine stops and cannot be restarted and the level 2
warning light illuminates, with the message Faulty injection displayed on the
instrument panel.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the rail pressure sensor connector, component code 1032.
Check the connection and condition of connector B (brown 48-track) of the injection computer, component
code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check for +5 V on connection 3LX of component 1032.
Check for earth on connection 3LZ of component 1032.
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.
Check the insulation and continuity of the following connections:
–3LX between components 1032 and 120,
–3LY between components 1032 and 120,
–3LZ between components 1032 and 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_DF007/DCM1.2_V4C_DF007/DCM1.2_V50_DF007/DCM1.2_V54_DF007/DCM1.2_V58_DF007/DCM1.2_V5C_DF007

13B-36
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF007
CONTINUED
Check the sealing of the low pressure and high pressure diesel fuel circuits (visual inspections): on the pump
casing, overpressure valve, pipes, rail and injector unions, injector wells, etc., run TEST 1 Low pressure circuit
check and TEST 7 High pressure circuit sealing check.
If all the above checks are correct:
With the vehicle ignition on and the engine stopped for over 1 minute:
Display PR038 Rail pressure, if the value is less than 30 bar, the sensor is correct.
Otherwise, use commands AC005 Cylinder 1 injector, AC006 Cylinder 2 injector, AC007 Cylinder 3 injector,
AC008 Cylinder 4 injector in order to release any residual pressure.
Check that the value of PR038 decreases. If PR038 becomes less than 30 bar, the sensor is correct.
If the fault is still present, replace the rail pressure sensor, component code 1032 (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, Rail pressure sensor: Removal - Refitting).
Note: the rail pressure sensor is built into the rail.
If the fault is still present, contact the Techline.

13B-37
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF008
PRESENT
OR STOREDPEDAL POTENTIOMETER CIRCUIT GANGED CIRCUIT 1CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
1.DEF: Inconsistency between pedal gangs 1 and 2
2.DEF: No signal
3.DEF: Jammed component
NOTESPriority for dealing with a combination of faults:
–DF113 Sensor supply voltage.
Special note:
If fault DF008 is present: the idle speed is fast (1000 rpm), the engine performance is
reduced to 75%, and the level 1 warning light illuminates with the message Check
injection displayed on the instrument panel.
If DF008 and DF009 Pedal potentiometer circuit gang 2 are present: the engine
speed increases to 1300 rpm or 1700 rpm if the vehicle is fitted with a sequential
gearbox (fault on gangs 1 and 2), and the level 1 warning light illuminates with
the message Check injection displayed on the instrument panel.
Note: possible risk of the engine speed racing with no load for 1 second.
See the Technical Note Wiring Diagrams for the vehicle.
1.DEF
3.DEF
NOTESNone.
Disconnect connector A (black) of the injection computer, component code 120 and the connector of the pedal
potentiometer, component code 921.
Check the insulation between connections 3LS and 3LW 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.
If the fault is still present, replace the accelerator pedal potentiometer, 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, 13B, Diesel injection, Accelerator pedal potentiometer: Removal - Refitting).
If the fault is still present, contact the Techline.
DCM1.2_V48_DF008/DCM1.2_V4C_DF008/DCM1.2_V50_DF008/DCM1.2_V54_DF008/DCM1.2_V58_DF008/DCM1.2_V5C_DF008

13B-38
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF008
CONTINUED 1
CO.0
CC.1
2.DEF
NOTESSpecial note:
None.
Check the connection and condition of the pedal potentiometer connector, component code 921.
Check the connection and condition of connector A (black 32-track) of the injection computer, component
code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check for + 5 V on connection 3LR of component 921.
Check for earth on connection 3LT of component 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 the wiring.
Check the insulation and continuity of the following connections:
–3LR between components 921 and 120,
–3LS between components 921 and 120,
–3LT between components 921 and 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.
Disconnect connector A of the injection computer, component code 120 and the connector of the pedal
potentiometer, component code 921.
Check the insulation between connections 3LS and 3LW 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.

13B-39
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF008
CONTINUED 2
Measure the resistance between connections 3LR and 3LT of component 921.
If the pedal potentiometer resistance is not between 800 ΩΩ Ω Ω
and 2600 ΩΩ Ω Ω
, replace the pedal potentiometer,
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, 13B, Diesel injection, Accelerator pedal potentiometer:
Removal - Refitting).
If the fault is still present, replace the accelerator pedal potentiometer, 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, 13B, Diesel injection, Accelerator pedal potentiometer: Removal - Refitting).
If the fault is still present, contact the Techline.

13B-40
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF009
PRESENT
OR STOREDPEDAL POTENTIOMETER TRACK 2 CIRCUITCO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
NOTESPriority for dealing with a combination of faults:
–DF122 Pedal potentiometer gang 2 supply voltage.
Special note:
If fault DF009 is present: the idle speed is fast (1000 rpm), the engine performance is
reduced to 75%, and the level 1 warning light illuminates with the message Check
injector displayed on the instrument panel.
If DF009 and DF008 Pedal potentiometer circuit gang 1 are present: the engine
speed increases to 1300 rpm or 1700 rpm if the vehicle is fitted with a sequential
gearbox (fault on gangs 1 and 2), and the level 1 warning light illuminates with
the message Check injection displayed on the instrument panel.
Note: possible risk of the engine speed racing with no load for 1 second.
See the Technical Note Wiring Diagrams for the vehicle.
CO.0
NOTESSpecial note:
None.
Check the connection and condition of the pedal potentiometer connector, component code 921.
Check the connection and condition of connector A (black 32-track) of the computer, component code 120.
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check for + 5 V on connection 3LU of component 921.
Check for earth on connection 3LV of component 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 the wiring.
Disconnect connector A of the computer, component code 120 and the connector of the pedal potentiometer,
component code 921.
Check the insulation against earth of connection 3LW on component 120.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
DCM1.2_V48_DF009/DCM1.2_V4C_DF009/DCM1.2_V50_DF009/DCM1.2_V54_DF009/DCM1.2_V58_DF009/DCM1.2_V5C_DF009