13B-53
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
DF024
PRESENT OR
STOREDLOW-PRESSURE ACTUATOR CONTROL CIRCUITCO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
NOTESSpecial notes:
If fault DF024 is present with a C0 or CC.1: the level 2 warning light illuminates and,
depending on the vehicle, the level 1 warning light illuminates with the message
Faulty injection displayed on the instrument panel.
The fuel flow actuator is fully open, there is a clicking, and the engine is stopped
to prevent it from racing.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the flow actuator connector, component code 1105.
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 + 12 V after ignition feed on connection 3FB1 or 3FB2 for New Twingo or 3FB3 for Kangoo 2 of
component 1105.
Check the insulation and continuity of the following connection:
–3HI between components 1105 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.
Measure the resistance between connections 3HI and 3FB1 or 3FB2 for New Twingo or 3FB3 for Kangoo 2
of component 1105.
If the resistance of the flow actuator is not between 4.8 ΩΩ Ω Ω
and 5.8 ΩΩ Ω Ω
at 20
°C, replace the flow actuator (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, Flow actuator: Removal - Refitting).
If the fault is still present, replace the low pressure actuator (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,
Flow actuator: Removal - Refitting).
If the fault is still present, contact the Techline.
DCM1.2_V48_DF024/DCM1.2_V4C_DF024/DCM1.2_V50_DF024/DCM1.2_V54_DF024/DCM1.2_V58_DF024/DCM1.2_V5C_DF024
13B-55
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
DF026
PRESENT
OR STOREDCYLINDER 1 INJECTOR CONTROL CIRCUITC0: Open circuit
CC: Short circuit
1.DEF: At minimum stop
2.DEF: At maximum stop
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
When fault DF026 occurs, the idle speed is locked at 1000 rpm, there is engine noise,
the engine speed is unstable, the engine performance is reduced to 75%, the level 1
warning light illuminates, and the message Check injector is displayed until the next
time the ignition is switched off.
See the Technical Note Wiring Diagrams for the vehicle.
C0 - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the cylinder 1 injector connector, component code 193.
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.
Run command AC005 Cylinder 1 injector.
If injector 1 cannot be heard operating five times in a cycle, connect the wire of the cylinder 2 injector to
the cylinder 1 injector and run command AC006 Cylinder 2 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DCM1.2_V48_DF026/DCM1.2_V4C_DF026/DCM1.2_V50_DF026/DCM1.2_V54_DF026/DCM1.2_V58_DF026/DCM1.2_V5C_DF026
13B-57
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
* C2I: Individual injector correction
DF026
CONTINUED 2
1.DEF
2.DEFNOTESNone.
Check the conformity of the injectors fitted to the vehicle in relation to the type of vehicle and engine number (low,
high or very high pressure injector).
Check that the C2I* is entered correctly in the injection computer.
Check the accelerometer shielding on connection TB1 of component 120.
Check that the accelerometer is secured on the engine.
After retightening the accelerometer, be sure to clear the pressure regulation adaptives using command
RZ004 Pressure regulation adaptives.
Carry out a road test to check if the fault is still present.
If the fault is still present, replace the cylinder 1 injector, component code 193 (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, Diesel injector: Removal - Refitting).
13B-58
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$100.mif
13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF027
PRESENT
OR
STOREDINJECTOR CYLINDER 2 CONTROL CIRCUITC0: Open circuit
CC: Short circuit
1.DEF: At minimum stop
2.DEF: At maximum stop
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
When fault DF027 occurs, the idle speed is locked at 1000 rpm, there is engine noise,
the engine speed is unstable, the engine performance is reduced to 75%, the level 1
warning light illuminates, and the message Check injector is displayed until the next
time the ignition is switched off.
See the Technical Note Wiring Diagrams for the vehicle.
C0 - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the cylinder 2 injector connector, component code 194.
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.
Run command AC006 Cylinder 2 injector.
If injector 2 cannot be heard operating five times in a cycle, connect the wire of the cylinder 3 injector to
the cylinder 2 injector and run command AC007 Cylinder 3 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DCM1.2_V48_DF027/DCM1.2_V4C_DF027/DCM1.2_V50_DF027/DCM1.2_V54_DF027/DCM1.2_V58_DF027/DCM1.2_V5C_DF027
DIESEL INJECTION
Fault finding – Interpretation of faults
13B-60
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$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
* C2I: Individual injector correction
DF027
CONTINUED 2
1.DEF
2.DEFNOTESNone.
Check the conformity of the injectors fitted to the vehicle in relation to the type of vehicle and engine number (low,
high or very high pressure injector).
Check that the C2I* is entered correctly in the injection computer.
Check the accelerometer shielding on connection TB1 of component 120.
Check that the accelerometer is secured on the engine.
After retightening the accelerometer, be sure to clear the pressure regulation adaptives using command
RZ004 Pressure regulation adaptives.
Carry out a road test to check if the fault is still present.
If the fault is still present, replace the cylinder 2 injector, component code 194 (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, Diesel injector: Removal - Refitting).
13B-61
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$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF028
PRESENT
OR
STOREDCYLINDER 3 INJECTOR CONTROL CIRCUITC0: Open circuit
CC: Short circuit
1.DEF: At minimum stop
2.DEF: At maximum stop
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
When fault DF028 occurs, the idle speed is locked at 1000 rpm, there is engine noise,
the engine speed is unstable, the engine performance is reduced to 75%, the level 1
warning light illuminates, and the message Check injector is displayed until the next
time the ignition is switched off.
See the Technical Note Wiring Diagrams for the vehicle.
C0 - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the cylinder 3 injector connector, component code 1954.
Check the connection and condition of connector B (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.
Run command AC007 Cylinder 3 injector.
If injector 3 cannot be heard operating five times in a cycle, connect the wire of the cylinder 4 injector to
the cylinder 3 injector and run command AC008 Cylinder 4 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DCM1.2_V48_DF028/DCM1.2_V4C_DF028/DCM1.2_V50_DF028/DCM1.2_V54_DF028/DCM1.2_V58_DF028/DCM1.2_V5C_DF028
13B-63
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$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
* C2I: Individual injector correction
DF028
CONTINUED 2
1.DEF
2.DEFNOTESNone.
Check the conformity of the injectors fitted to the vehicle in relation to the type of vehicle and engine number (low,
high or very high pressure injector).
Check that the C2I* is entered correctly in the injection computer.
Check the accelerometer shielding on connection TB1 of component 120.
Check that the accelerometer is secured on the engine.
After retightening the accelerometer, be sure to clear the pressure regulation adaptives using command
RZ004 Pressure regulation adaptives.
Carry out a road test to check if the fault is still present.
If the fault is still present, replace the cylinder 3 injector, component code 195 (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, Diesel injector: Removal - Refitting).
13B-64
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$100.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF029
PRESENT
OR
STOREDINJECTOR CYLINDER 4 CONTROL CIRCUITC0: Open circuit
CC: Short circuit
1.DEF: At minimum limit
2.DEF: At maximum limit
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
When fault DF029 occurs, the idle speed is locked at 1000 rpm, there is engine noise,
the engine speed is unstable, the engine performance is reduced to 75%, the level 1
warning light illuminates, and the message Check injector is displayed until the next
time the ignition is switched off.
See the Technical Note Wiring Diagrams for the vehicle.
C0 - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the cylinder 4 injector connector, component code 196.
Check the connection and condition of connector B (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.
Run command AC008 Cylinder 4 injector.
If injector 4 cannot be heard operating five times in a cycle, connect the wire of the cylinder 3 injector to
the cylinder 4 injector and use command AC007 Cylinder 3 injector.
Does this injector actuation cycle work?
Note:
If the wires cannot be swapped, continue the procedure by replying YES to the previous question.
DCM1.2_V48_DF029/DCM1.2_V4C_DF029/DCM1.2_V50_DF029/DCM1.2_V54_DF029/DCM1.2_V58_DF029/DCM1.2_V5C_DF029