2010 RENAULT SCENIC Engine And Pheripherals DCM 1.2 Injection Workshop Manual

13B-25V10 MR-372-J84-13B100$060.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
REPLACING THE INJECTORS:
The system can be set up using the diagnostic socket with the RENAULT CLIP diagnostic tool.
The C2I parameters must be replaced after replacing an injector or injectors.
To do this, reprogram 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
The four C2I can be entered 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 adaptives, using command RZ004
Pressure regulation adaptives.
REPLACING THE HIGH PRESSURE PUMP
PROCEDURE
Refer to Technical Note 5011A, Repriming Delphi high pressure pumps on K9K engines.
EGR VALVE REPLACEMENT:
If replacing the EGR valve, it is essential to program the new valve's offset position. To do this, clear the old offset
using the EGR programming clearing procedure and run command RZ002 EGR adaptives. 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 and then are entered in the computer, which
can then actuate each injector by taking account of their manufacturing variation.
IMPORTANT
When reprogramming the computer, only carry out the following procedure after command AC028 Static
test has been run (see Computer reprogramming operation).

13B-26V10 MR-372-J84-13B100$070.mif
13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
CONFIGURATION READING
SETTINGS
VP001:Cylinder 1 injector code.
VP002:Cylinder 2 injector code.
VP003:Cylinder 3 injector code.
VP004:Cylinder 4 injector code.
These commands enable you to manually write the calibration code marked on the injector. Use these commands
after replacing the injector or replacing or (re)programming the computer, when command SC001 Enter saved data
does not work.
VP010:Enter VIN.
This command permits manual entry of the vehicle's VIN into the computer.
Use this command each time the computer is replaced or (re)programmed.
VP013:Lock injector control.
This command disables electrical actuation of the injectors, for carrying out the compression test.
SPECIAL COMMANDS
SC001:Enter saved data.
Use this command after replacing or (re)programming the computer (if the data were saved using
command SC003 Save computer data).
SC002:Enter injector codes.
This command enables you to manually write the calibration code marked on the injectors. Run this
command after replacing the injectors.
SC003:Save computer data.
This command saves the computer's operating data, C2I (individual injector correction) parameters
and engine adaptives. Run this command before replacing or (re)programming.
SC040:Speed limiter.
This command is used to change the vehicle restriction speed. Run this command after replacing
or (re)programming.
SC041:Modification of CV* idle speed.
This command is used to change the idle speed. Run this command after replacing or (re)programming.
* CV: Commercial vehicleIndex Title Display comment
LC120 Cruise controlWith or Without
LC121 Speed limiterWith or Without
LC172 FlowmeterWith or Without
DIESEL INJECTION
Fault finding – Configuration and programming

13B-27V10 MR-372-J84-13B100$080.mif
13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
Tool faultDTC codeDiagnostic tool title
DF0010115 Coolant temperature sensor circuit
DF0020070 Air temperature sensor circuit
DF0032226 Atmospheric pressure sensor circuit
DF0050335 Engine speed sensor circuit
DF0070190 Rail pressure sensor circuit
DF0080225 Pedal potentiometer circuit gang 1
DF0092120 Pedal potentiometer circuit gang 2
DF0100409 EGR position sensor circuit
DF0140500 Vehicle speed information circuit
DF0150685 Main relay control circuit
DF0160403 EGR control circuit
DF0170382 Preheating unit control circuit
DF0180480 Low-speed fan unit control circuit
DF0190481 High-speed fan unit control circuit
DF0240231 Low pressure actuator control circuit
DF0250380 Pre-postheating unit diagnostic line
DF0260201 Cylinder 1 injector control circuit
DF0270202 Cylinder 2 injector control circuit
DF0280203 Cylinder 3 injector control circuit
DF0290204 Cylinder 4 injector control circuit
DF0321641 Thermoplunger 1 relay control circuit
DF0331642 Thermoplunger 2 relay control circuit
DF0341643 Thermoplunger 3 relay control circuit
DF0370513 Engine immobiliser
DF0380606 Computer
DF0390110 Inlet air temperature sensor circuit
DF0470560 Computer feed voltage
DF0490530 Refrigerant sensor circuit
DF0500571 Brake switch circuit
DF0510575 Cruise control/speed limiter function
DF0520200 Injector control circuit
DIESEL INJECTION
Fault finding – Fault summary table

13B-28V10 MR-372-J84-13B100$080.mif
DIESEL INJECTION
Fault finding – Fault summary table13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
*supply: supplyDF0530089 Rail pressure regulation function
DF0560100 Air flow sensor circuit
DF0572264 Water in diesel fuel detector circuit
DF0590263 Misfires in cylinder 1
DF0600266 Misfires in cylinder 2
DF0610269 Misfires in cylinder 3
DF0620272 Misfires in cylinder 4
DF0890235 Inlet manifold pressure sensor circuit
DF0980180 Fuel temperature sensor circuit
DF099C101Automatic or sequential gearbox connection via the multiplex
network
DF1070604 Computer memory
DF1120340 Cylinder reference sensor circuit
DF1130641 Sensor feed voltage
DF1140400 EGR solenoid valve circuit
DF1210325 Accelerometer circuit
DF1220651 Pedal potentiometer gang 2 supply voltage
DF1300087 Flow capacity function
DF1950016 Camshaft sensor / engine speed consistency
DF2090487 EGR valve position sensor circuit
DF2210830 Clutch switch signal
DF2420654 Engine speed signal output
DF2610045 Turbocharger actuator circuit
DF4272263 Turbocharger actuator control
DF4890645 Air conditioning compressor control
DF6310703 Brake light switch signal
DF648062F Computer
DF8590170 Injector programming cycle not done
DF8862269 Presence of water in the diesel fuel
DF10700534 Cold loop
Tool faultDTC codeDiagnostic tool title

13B-29
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
13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
DF001
PRESENT
OR STOREDCOOLANT TEMPERATURE SENSOR CIRCUITCO.1: Open circuit or short circuit to +12 V
CC.0: Short circuit to earth
NOTESSpecial notes:
If fault DF001 is present, the preheating time is greater than 10 seconds and the engine
fan switches on at low speed (Fan assembly 1). If there is a fault on Fan assembly 1,
then on vehicles fitted with air conditioning, Fan assembly 2 switches on.
See the Technical Note Wiring Diagrams for the vehicle.
Check the connection and condition of the coolant temperature sensor connector, component code 244.
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.
Measure the resistance of component 244 between connections 3JK and 3C.
If the resistance of the coolant temperature sensor is not:
at –40
°C: 68780 ΩΩ Ω Ω
< X < 82780 ΩΩ Ω Ω

at –10
°C: 11332 ΩΩ Ω Ω
< X < 13588 ΩΩ Ω Ω

at 25
°C: 2140 ΩΩ Ω Ω
< X < 2364 ΩΩ Ω Ω

at 50
°C: 772 ΩΩ Ω Ω
< X < 850 ΩΩ Ω Ω

at 80
°C: 275 ΩΩ Ω Ω
< X < 291 ΩΩ Ω Ω

at 110
°C: 112 ΩΩ Ω Ω
< X < 118 ΩΩ Ω Ω

at 120
°C: 86 ΩΩ Ω Ω
< X < 90 ΩΩ Ω 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).
Check the insulation and continuity of the following connections:
–3JK between components 120 and 244,
–3C between components 120 and 244.
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 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).
If the fault is still present, contact the Techline.
DCM1.2_V48_DF001/DCM1.2_V4C_DF001/DCM1.2_V50_DF001/DCM1.2_V54_DF001/DCM1.2_V58_DF001/DCM1.2_V5C_DF001
DIESEL INJECTION
Fault finding – Interpretation of faults

13B-30
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
DF002
PRESENT
OR STOREDAIR TEMPERATURE SENSOR CIRCUITCO.1: Open circuit or short circuit to +12 V
CC.0: Short circuit to earth
1.DEF: inconsistency
NOTESDepending on the engine type, the air temperature is given by the air temperature
sensor, which is either on the air flowmeter or in place of the air flowmeter on K9K 724,
740, 766, 768, and 812 engines only.
See the Technical Note Wiring Diagrams for the vehicle.
The air temperature sensor in the flow sensor has a separate electrical circuit.
Move the wiring between the computer and the air temperature sensor to see if a change of status occurs
(present stored).
Look for any wiring damage and check the connection and condition of the air temperature sensor and its
connections.
Check the connection and condition of the injection computer connector.
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 component 272 between connections 3JQ and 3B.
If the resistance of the air temperature sensor is not:
(theoretical values for engines with flowmeter)
at -10
°C: 8716 ΩΩ Ω Ω
< X < 9688 ΩΩ Ω Ω
at 0
°C: 5497 ΩΩ Ω Ω
< X < 6051 ΩΩ Ω Ω
at 10
°C: 3553 ΩΩ Ω Ω
< X < 3875 ΩΩ Ω Ω
at 20
°C: 2353 ΩΩ Ω Ω
< X < 2543 ΩΩ Ω Ω
at 30
°C: 1613 ΩΩ Ω Ω
< X < 1729 ΩΩ Ω Ω
(theoretical values for engines without flowmeter)
at -10
°C: 8623 ΩΩ Ω Ω
< X < 10454 ΩΩ Ω Ω
at 25
°C: 1928 ΩΩ Ω Ω
< X < 2174 ΩΩ Ω Ω
at 50
°C: 763 ΩΩ Ω Ω
< X < 857 ΩΩ Ω Ω
,
replace the air temperature sensor.
DCM1.2_V48_DF002/DCM1.2_V4C_DF002/DCM1.2_V50_DF002/DCM1.2_V54_DF002/DCM1.2_V58_DF002/DCM1.2_V5C_DF002

13B-31
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
DF002
CONTINUED
Check the insulation and continuity of the following connections:
–3JQ between components 120 and 272,
–3B between components 120 and 272.
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 air flowmeter or the air temperature sensor, component code 272
(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).
If the fault is still present, contact the Techline.

13B-32
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
DF003
PRESENT
OR STOREDATMOSPHERIC PRESSURE SENSOR CIRCUITCO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
NOTESSpecial note:
The atmospheric pressure sensor is incorporated in the computer.
See the Technical Note Wiring Diagrams for the vehicle.
Look for any wiring damage and check the condition and connection of the injection computer connectors,
component code 120.
Move the wiring between the injection computer, component code 120 and the battery, component code 107
to see if a change of status occurs (Present Stored).
Look for any wiring damage and check the connection and condition of the battery, component code 107
and its connections.
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.
Measure the battery voltage when the ignition is switched on.
If the battery voltage is less than 11 V, recharge the battery.
Check the connection and condition of the battery terminals and posts, component code 107.
Check the connection and condition of connector A (black 32-track) of the injection computer, component
code 120.
Check the connection and condition of the connector of the injection locking relay or of the UPC, according to
the vehicle.
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.
DCM1.2_V48_DF003/DCM1.2_V4C_DF003/DCM1.2_V50_DF003/DCM1.2_V54_DF003/DCM1.2_V58_DF003/DCM1.2_V5C_DF003