13B-19V4 MR-372-J84-13B000$030.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
DDCR INJECTION
Vdiag No.: 44, 48
REPLACING THE INJECTORS:
The system may be configured via the diagnostic socket using the RENAULT CLIP diagnostic tool.
The C2I parameters must be replaced after replacing an injector/injectors.
To do this, reprogram the C2I into the computer using the following commands:
Cylinder 1 injector: command VP001 Cylinder 1 injector code (cylinder at flywheel end).
Cylinder 2 injector: command VP002 Cylinder 2 injector code.
Cylinder 3 injector: command VP003 Cylinder 3 injector code.
Cylinder 4 injector: command VP004 Cylinder 4 injector code.
It is also possible to enter the four C2I using command SC002 Enter injector codes.
The technician can use the appropriate command to re-enter the new C2I for the replaced injector and to erase the
old C2I.
–Only after simultaneously replacing at least three injectors, reset the injector programming adaptives, using
command RZ004 Pressure regulation programming adaptives. IMPORTANT
AFTER A PROGRAMMING OPERATION, DO NOT CONNECT THE BATTERY FOR AT LEAST 30 minutes (to
carry out other work on the vehicle).
Note:
If commands SC001 and SC003 have been lost or if they are not operating after programming the computer:
– Enter the C2I for each injector manually, by reading the C2I on each injector (see Replacement of
components, Injector replacement).
– Use command AC028 Static test to reinitialise the computer (fan assembly, etc.).
– Switch the ignition off and then on again.
– Clear the engine management computer faults.
IMPORTANT
It is not possible to try an injection computer from the Parts Department as it will not be possible to fit it on another
vehicle afterwards.
Note:
C2I (individual injector correction) is a calibration carried out in the factory on each injector to adjust the flow
of each injector precisely.
The correction values are written on a label affixed to each injector, then entered in the computer which can then
actuate each injector by taking account of their manufacturing variation.
13B-25
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF002
PRESENTAIR TEMPERATURE SENSOR CIRCUITCO.1: Open circuit or short circuit to + 12 volts.
CC.0: Short circuit to earth.
1.DEF: inconsistency.
NOTESNone.
Check the connection and condition of the 4-track connector of the air temperature sensor.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check for the +5 V after ignition feed between track 3 and track 1 earth on the air temperature sensor
connector.
Repair if necessary.
Measure the resistance of the air temperature sensor between tracks 2 and 3.
Replace the air temperature sensor if the resistance is not:
7419 Ω ± 365 Ω at -5°C.
5887 Ω ± 282 Ω at 0°C.
4707 Ω ± 220 Ω at 5°C.
3791 Ω ± 173 Ω at 10°C.
3075 Ω ± 137 Ω at 15°C.
2510 Ω ± 113 Ω at 20°C.
2063 Ω ± 87 Ω at 25°C.
1716 Ω ± 71 Ω at 30°C.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 2 Track J1 computer connector B
Sensor connector track 3 Track C1 computer connector B
Sensor connector track 4 Track C2 computer connector B
Sensor connector track 1 Track C3 computer connector B
Repair if necessary.
If the fault is still present, replace the air temperature sensor.
DDCR_V44_DF002P/DDCR_V48_DF002P
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF016
STOREDEGR VALVE CONTROL CIRCUITCO.0: Open circuit or short circuit to earth.
CC.1: Short circuit to +12 volts.
NOTESConditions for applying fault finding procedures to stored faults:
The fault is present with the engine idling.
Special notes:
If fault DF016 is present: the engine is unstable and may even stall.
Starting difficult or even impossible when cold.
See Technical Note Wiring Diagrams of the vehicle concerned.
Check the connection and condition of the exhaust gas recirculation solenoid valve connector, component code
169.
Check the connection and condition of connector B (brown 48-track) of the injection computer, component code
120.
If the connector or connectors are 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 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 169.
Check the insulation and continuity of the following connections:
–3GB between components 169 and 120,
–3FB2 between components 169 and 120.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Measure the resistance of the EGR valve, component code 169:
– with the engine stopped, the EGR 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 3GB of component 169. The resistance must be
between
7.5 Ω
< R < 8.5 Ω (at 20°C),
– measure the resistance between connections 3GC and 3JM of component 169. The resistance must be between
2.4 KΩ < R < 5.6 KΩ (at 20°C),
– measure the resistance between connections 3JM and 3EL of component 169. The resistance must be between
800 Ω < R < 3.6 KΩ (ατ 20°C),
if the value is not correct, replace the EGR valve (see MR 364 (Mégane II), MR 370
(Scénic II), Mechanical, 14A, Emission control, Exhaust gas recirculation solenoid valve: Removal -
Refitting). If the EGR valve was replaced, use command RZ002 EGR adaptives to reinitialise the EGR valve
offsets.
If the fault is still present, contact the Techline.
DDCR_V44_DF016M/DDCR_V48_DF016M
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF017
PRESENTPRE-POSTHEATING UNIT CONTROL CIRCUITCO.0: Open circuit or short circuit to earth.
CC.1: Short circuit to +12 volts.
NOTESSpecial notes: If DF017 is present, starting difficult (or impossible when cold). If
CO.0: the plugs are permanently switched on with risk of damage or even engine
failure.
Check the connection and condition of the preheating unit connector.
Repair if necessary.
Check the connection and condition of the computer's 32-track grey connector C.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
+12 V after ignition feed Track 3 preheating unit
Computer connector C track D3 Track 9 preheating unit
Computer connector C track F2 Track 8 preheating unit
Repair if necessary
DDCR_V44_DF017P/DDCR_V48_DF017P
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF026
PRESENT
OR
STOREDCYLINDER 1 INJECTOR CONTROL CIRCUIT
CO: Open circuit.
CC: Short circuit.
1.DEF: At minimum limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine at idle speed.
Special notes: When this fault appears, the idle speed is stuck at 1000 rpm, there is
engine noise, the engine speed is unsteady, the engine performance is reduced, and the
level 1 warning light illuminates along with the message Faulty injection.
CO - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the injector connector.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Run command AC005 Cylinder 1 injector.
If a cycle of 5 actuations of injector 1 cannot be heard working, connect the cylinder 2 injector wire 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.
DDCR_V44_DF026/DDCR_V48_DF026
13B-42
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF027
PRESENT
OR
STOREDINJECTOR CYLINDER 2 CONTROL CIRCUIT
CO: Open circuit.
CC: Short circuit.
1.DEF: At minimum limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine idling.
Special notes: When this fault appears, the idle speed is stuck at 1000 rpm, there is
engine noise, the engine speed is unsteady, the engine performance is reduced, and the
level 1 warning light illuminates along with the message Faulty injection.
CO - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the injector connector. Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B. Repair if necessary.
Run command AC006 Cylinder 2 injector.
If a cycle of 5 actuations of injector 2 cannot be heard working, connect the cylinder 3 injector wire 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.
DDCR_V44_DF027/DDCR_V48_DF027
13B-44
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF028
PRESENT
OR
STOREDCYLINDER 3 INJECTOR CONTROL CIRCUIT
CO: Open circuit.
CC: Short circuit.
1.DEF: At minimum limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is present with the engine idling.
Special notes: When this fault appears, the idle speed is stuck at 1000 rpm, there is
engine noise, the engine speed is unsteady, the engine performance is reduced, and the
level 1 warning light illuminates along with the message Faulty injection.
CO - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the injector connector. Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B. Repair if necessary.
Run command AC007 Cylinder 3 injector.
If 5 actuation cycles of injector 3 cannot be heard working, connect the cylinder 4 injector wire to the cylinder 3
injector and use 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.
DDCR_V44_DF028/DDCR_V48_DF028
13B-46
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.
V4 MR-372-J84-13B000$061.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF029
PRESENT
OR
STOREDCYLINDER 4 INJECTOR CONTROL CIRCUIT
CO: Open circuit.
CC: Short circuit.
1.DEF: At minimum limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine idling.
Special notes: When this fault appears, the idle speed is stuck at 1000 rpm, there is
engine noise, the engine speed is unsteady, the engine performance is reduced, and the
level 1 warning light illuminates along with the message Faulty injection.
CO - CC
NOTESNone.
Switch off the ignition and wait 15 seconds.
Check the connection and condition of the injector connector. Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B. Repair if necessary.
Run command AC008 Cylinder 4 injector.
If 5 actuation cycles of injector 4 cannot be heard working, connect the cylinder 3 injector wire 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.
DDCR_V44_DF029/DDCR_V48_DF029