engine RENAULT SCENIC 2010 J95 / 3.G Engine And Pheripherals DCM 1.2 Injection Owner's Guide

13B-47
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF016
PRESENT
OR STOREDEGR VALVE CONTROL CIRCUITCC.0: Short circuit to earth
CC.1: Short circuit to +12 volts
1.DEF: Detection of overheating
CO.0: Open circuit or short circuit to earth
CO.1: Open circuit or short circuit to +12 V
CO: Open circuit
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
If fault DF016 is present: unstable engine speed and even stalling.
Starting difficult or even impossible when cold.
See the Technical Note Wiring Diagrams for the vehicle.
K9K 724, 740, 766, 768, 800, 802, and 812 ENGINES (Euro 4):
Check the connection and condition of the exhaust gas recirculation valve connector, component code 1460.
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 the insulation and continuity of the following connections:
–3VP between components 1460 and 120,
–3VQ between components 1460 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.
Check for the supply 13 V < X < 14 V (with the engine running), 11.5 V < X < 12.5 V (with the ignition on
and the engine stopped) on connection 3VP of component 1460.
Check for earth on connection 3VQ of component 1460.
DCM1.2_V48_DF016/DCM1.2_V4C_DF016/DCM1.2_V50_DF016/DCM1.2_V54_DF016/DCM1.2_V58_DF016/DCM1.2_V5C_DF016

13B-48
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF016
CONTINUED 1
Measure the resistance of the EGR valve, component code 1460:
–with the engine stopped, the exhaust gas recirculation valve will be closed (unless there is a fault),
–wait for the ambient temperature around the valve to stabilise (approximately 20
°C),
measure the resistance between connections 3VP and 3VQ of component 1460. The resistance must be between
0.5 ΩΩ Ω Ω
< R < 50 Ω (while running command AC002 EGR solenoid valve).
If the value is not correct, replace the EGR valve, component code 1460 (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, 14A,
Emission control, Exhaust gas recirculation solenoid valve: Removal - Refitting).
After replacing the EGR valve, use command RZ002 EGR Adaptives to reinitialise the EGR valve offsets.
If the fault is still present, contact the Techline.

13B-49
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF016
CONTINUED 2
K9K 750 and 752 ENGINES (Euro 3):
Check the connection and condition of the exhaust gas recirculation solenoid valve connector, component
code 1460.
Check the connection and condition of connector B (brown 48-track) of the injection computer, component
code 1260.
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 the insulation and continuity of the following connections:
–122B between components 1460 and 120,
–3FB2 between components 1460 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.
Check for the supply 13 V < X < 14 V (with the engine running), 11.5 V < X < 12.5 V (with the ignition on
and the engine stopped) on connection 3FB2 of component 1460.
Measure the resistance of the EGR valve, component code 1460:
–with the engine stopped, the exhaust gas recirculation valve will be closed (unless there is a fault),
–wait for the ambient temperature around the valve to stabilise (approximately 20
°C),
–measure the resistance between connections 3FB2 and 122B of component 1460. The resistance must be
between 7.5 ΩΩ Ω Ω
< R < 8.5 ΩΩ Ω Ω
(at 20
°C),
–measure the resistance between connections 3GC and 3JM of component 1460. The resistance must be
between 2.4 KΩΩ Ω Ω
< R < 5.6 KΩΩ Ω Ω
(at 20
°C),
–measure the resistance between connections 3JM and 3EL of component 1460. The resistance must be
between 800 ΩΩ Ω Ω
< R < 3.6 KΩΩ Ω Ω
(at 20
°C),
if the value is not correct, replace the EGR valve (see MR 385 (Modus), MR 392 (Clio III), Mechanical, 14A,
Emission control, Exhaust gas recirculation solenoid valve: Removal - Refitting).
After replacing the EGR valve, use command RZ002 EGR Adaptives to reinitialise the EGR valve offsets.
If the fault is still present, contact the Techline.

13B-50
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$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF017
PRESENT
OR STOREDPREHEATING UNIT CONTROL CIRCUITC0.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
NOTESSpecial notes:
If fault DF017 is present: starting is difficult (even impossible when cold). If CC.1:
heater plugs are permanently switched on with risk of engine damage or even failure.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the preheating unit connector, component code 257 or 980.
Check the connection and condition of connector C (grey 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 the insulation and continuity of the following connections:
–BP35 between components 777 (or 597 for New Twingo) and 257 (or 980),
–3FY between connections 257 (or 980) and 120,
–3FF between components 257 (or 980) 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_DF017/DCM1.2_V4C_DF017/DCM1.2_V50_DF017/DCM1.2_V54_DF017/DCM1.2_V58_DF017/DCM1.2_V5C_DF017

13B-51V10 MR-372-J84-13B100$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 50, 58
DF018
PRESENT
OR STOREDLOW SPEED FAN ASSEMBLY CONTROL CIRCUITCC.1: Short-circuit to +12 volts
CO.0: Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault reappears after:
–the ignition is switched on,
–clearing the fault from the memory,
–the relay is actuated using command AC154 Low speed fan assembly.
Special notes:
–high-speed fan assembly constantly actuated,
–the level 1 warning light is illuminated.
–Use bornier Elé. 1681 for all operations on the connector of the engine management
computer.
–See the Technical Note Wiring Diagrams for the vehicle.
Check the connections of the low-speed fan assembly relay mounting, component code 700.
Check the connections of the engine management 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 AC154 Low-speed fan assembly.
If the command does not work, with the ignition on, check for +12 V on connection 3FB of component 700
and the earth of connection 3JN of component 700.
Remove the low speed relay and check the continuity of the following connections:
–3FB between components 238 and 700,
–3JN between components 700 and 120.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
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.
DCM1.2_V50_DF018/DCM1.2_V58_DF018

13B-52V10 MR-372-J84-13B100$090.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 50, 58
DF019
PRESENT
OR STOREDHIGH SPEED FAN ASSEMBLY CONTROL CIRCUITCC.1: Short circuit to +12 volts
CO.0: Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault reappears after:
–the ignition is switched on,
–clearing the fault from the memory,
–relay actuated using command AC153 High speed fan assembly.
Special notes:
–the level 1 warning light is illuminated,
–risk of overheating and air conditioning cut-off.
–Use bornier Elé. 1681 for all operations on the connector of the engine management
computer.
–See the Technical Note Wiring Diagrams for the vehicle.
Check the connections of the high-speed fan assembly relay mounting, component code 234.
Check the connections of the engine management computer, component code 120.
If the connector(s) are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s), otherwise replace the wiring.
Run command AC153 High speed fan assembly.
If the command does not work, with the ignition on, check for + 12 V on connection 3FB of component 234
and the earth of connection 3JP of component 234.
Remove the high speed relay and check the continuity of the following connections:
–3FB between components 238 and 234,
–3JP between components 120 and 234.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
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.
DCM1.2_V50_DF019/DCM1.2_V58_DF019

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.
V10 MR-372-J84-13B100$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.
V10 MR-372-J84-13B100$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.
V10 MR-372-J84-13B100$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.
V10 MR-372-J84-13B100$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