13B-13V12 MR-372-J84-13B300$030.mif
DIESEL INJECTION
Fault finding – System operation13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Fuel surplus from the pump, injector return rail or rail is collected in a low pressure "octopus manifold" and is then
sent to the fuel filter, providing that the fuel is cold (recirculation), and then to the tank.
The system can inject diesel fuel into the engine at a pressure of up to 1600 bar. Before each operation, check that
the injector rail is depressurised and that the fuel temperature is not too high.
You must respect the cleanliness guidelines and safety advice specified in this document for any work on the high
pressure injection system.
Removal of the internal parts of the pump and injectors is prohibited. Only the fuel pressure regulator (or actuator)
on the high pressure pump (MPROP), the fuel pressure regulator (or actuator) on the injector rail (DRV) or the diesel
temperature sensor can be replaced.
For safety reasons, it is strictly prohibited to undo a high pressure pipe union when the engine is running.
It is not possible to remove the pressure sensor from the fuel rail because this may cause circuit contamination
faults. If the pressure sensor fails, replace the pressure sensor, the rail and the high pressure pipes.
Some vehicles have a presence sensor mounted in the filter for detecting water in the diesel. If there is water in
the diesel fuel, the orange "Injection and pre-post heating" warning light will come on.
Supplying + 12 V directly to any component in the system is prohibited.
Ultrasonic decoking and cleaning are prohibited.
Never start the engine unless the battery is connected correctly.
Disconnect the injection computer when carrying out any welding work on the vehicle.
b. The connections between the vehicle's various computers are multiplexed.
The electronic system fitted in this vehicle is multiplexed.
This enables dialogue between the various vehicle computers. As a result:
– the fault warning lights on the instrument panel are lit by the multiplex network,
– vehicle faults are displayed by the multiplex network,
– the vehicle speed sensor on the gearbox is not needed.
The vehicle speed signal on the instrument panel is sent by the ABS computer via the multiplex network. The vehicle
speed signal is mainly used by the injection computer, the airbag computer and the automatic transmission
computer (if the vehicle is fitted with this).WARNING:
The engine must not operate with:
– Diesel fuel containing more than 10% diester,
– petrol, even in tiny quantities.
Note:
For the M9R 724 (Vdiag 5C and 58):
The engine is limited to 3000 rpm if the vehicle is stationary or if the vehicle speed is less than 4 mph (7 km/h)
and if the engine is warm.
13B-30V12 MR-372-J84-13B300$060.mif
DIESEL INJECTION
Fault finding – Fault summary table13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
* temp: Temperature
* Diff: Differential
* regen.: RegenerationTool faultAssociated
DTCDiagnostic tool title
DF3152452 Particle filter diff.* pressure sensor
DF3232100 Damper valve
DF333C101 Injection -> automatic gearbox connection
DF364530 Air conditioning
DF502565 Cruise control or speed limiter button
DF5322502 Alternator charge signal
DF5692263 Turbocharging circuit
DF6452101 Damper valve position regulation
DF646120 Damper valve position sensor
DF647488 EGR valve position regulation
DF651470 Turbine upstream pressure sensor circuit
DF652544 Turbine upstream temperature sensor circuit
DF7172453 Particle filter upstream pressure
DF890297 Movement during particle filter regener*
DF8912146 Group 1 injectors feed
DF8922149 Group 2 injectors feed
DF8952293 Pressure regulation on rail
DF89689 Pressure regulation on pump
DF89790 Pressure regulator circuit on pump
DF8982294 Pressure regulator circuit on rail
DF8993031 Regeneration temperature limit exceeded
DF9971640 Control unit -> thermoplunger connection
DF1020253F Engine oil dilution
DF10691670 Heater plugs not configured
DF118812B Air leak in turbocharging circuit
13B-163
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$073.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF221
STOREDCLUTCH CONTACT SIGNAL1.DEF: Clutch inconsistency upon gear change
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault becomes present during a road test at over 21 mph (35 km/h).
Special notes:
– the cruise control/speed limiter function is switched off.
Use bornier Elé. 1681 for all operations on the engine management computer
connector.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Check the condition of the clutch sensor connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 675).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Display status ET405 Clutch pedal switch (can only be displayed for Manual Gearboxes) which is normally
INACTIVE when the pedal is not depressed.
Depress the clutch pedal and note whether this status becomes ACTIVE.
If the status becomes ACTIVE when the clutch pedal is in the rest position.
Clear the fault, switch off the ignition, wait for the end of the power-latch and wait for the diagnostic tool message
(maximum wait 8 min): Loss of dialogue with the computer: EDC16 CP33, check the tool connection and the
computer supply voltage and switch on the ignition again.
Carry out a road test and then take a fault reading.
If the fault is still present, contact the Techline.
EDC16CP33_V18_DF221M / EDC16CP33_V1C_DF221M / EDC16CP33_V54_DF221M / EDC16CP33_V20_DF221M /
EDC16CP33_V58_DF221M / EDC16CP33_V5C_DF221M / EDC16CP33_V24_DF221M / EDC16CP33_V04_DF221M /
EDC16CP33_V08_DF221M / EDC16CP33_V44_DF221M / EDC16CP33_V4C_DF221M / EDC16CP33_V34_DF221M /
EDC16CP33_V38_DF221M / EDC16CP33_V74_DF221M / EDC16CP33_V28_DF221M / EDC16CP33_V62_DF221M /
EDC16CP33_V26_DF221M / EDC16CP33_V60_DF221M
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
13B-262V12 MR-372-J84-13B300$090.mif
13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Tool status Diagnostic tool title
ET001+ After ignition computer feed
ET003Engine immobiliser
ET007Pre-postheating control
ET024Thermoplunger no. 1 request
ET025Thermoplunger no. 2 request
ET026Thermoplunger no. 3 request
ET034Clutch signal registered
ET038Engine
ET042Cruise control/speed limiter
ET076Starting
ET077Impact detected
ET079Air conditioning present
ET104Injector code use
ET120Pre-postheating signal
ET143Low-speed fan assembly relay control
ET144High-speed fan assembly relay control
ET205Thermoplunger no. 1 relay control (only on Laguna II ph2 without particle filter)
ET206Thermoplunger no. 2 relay control (only on Laguna II ph2 without particle filter)
ET207Thermoplunger no. 3 relay control (only on Laguna II ph2 without particle filter)
ET238Synchronisation
ET285Injection -> automatic gearbox connection
ET341Immobiliser code programmed
ET405Clutch pedal switch (only for manual gearboxes)
ET415Cruise control/Speed limiter deactivation
ET587Cooling of recirculated exhaust gas
ET589Electric coolant pump control (turbocharger)
ET615Automatic gearbox lever position
ET651EGR programming cut-off
DIESEL INJECTION
Fault finding – Status summary table
13B-294V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET285INJECTION -> AUTOMATIC TRANSMISSION CONNECTION
STATUS
DEFINITIONPRESENT
ABSENT
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
PRESENTThere is a multiplex connection between the injection computer and the automatic
transmission computer.
ABSENTThere is no multiplex connection between the injection computer and the automatic
transmission computer, as there is a manual gearbox.
If there is an automatic transmission and the message ABSENT appears:
Run a multiplex network test (see 88B, Multiplex).
Check the continuity and insulation to earth of the following connections:
•3MS and 3MT between components 119 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 it.
EDC16CP33_V18_ET285 / EDC16CP33_V1C_ET285 / EDC16CP33_V54_ET285 / EDC16CP33_V20_ET285 / EDC16CP33_V58_ET285 /
EDC16CP33_V5C_ET285 / EDC16CP33_V24_ET285 / EDC16CP33_V28_ET285 / EDC16CP33_V62_ET285 / EDC16CP33_V26_ET285 /
EDC16CP33_V60_ET285
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
13B-296V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET405CLUTCH PEDAL SWITCH
STATUS
DEFINITIONACTIVE: this status indicates that the clutch pedal is depressed.
INACTIVE: this status indicates that the clutch pedal is released.
NOTESCan only be displayed for manual gearboxes.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
"ACTIVE"Clutch pedal depressed.
Non-conformity of the brake signals and/or the clutch switch signals can cause
the engine to race during gear changes.
In the event of a fault, check the electrical conformity of the sensor.
"INACTIVE"Clutch pedal released.
Non-conformity of the brake signals and/or the clutch switch signals can cause
the engine to race during gear changes.
In the event of a fault, check the electrical conformity of the sensor.
Sensor electrical conformity
EDC16CP33_V18_ET405 / EDC16CP33_V1C_ET405 / EDC16CP33_V54_ET405 / EDC16CP33_V20_ET405 / EDC16CP33_V58_ET405 /
EDC16CP33_V5C_ET405 / EDC16CP33_V24_ET405 / EDC16CP33_V04_ET405 / EDC16CP33_V08_ET405 / EDC16CP33_V44_ET405 /
EDC16CP33_V4C_ET405 / EDC16CP33_V34_ET405 / EDC16CP33_V38_ET405 / EDC16CP33_V74_ET405 / EDC16CP33_V28_ET405 /
EDC16CP33_V62_ET405 / EDC16CP33_V26_ET405 / EDC16CP33_V60_ET405
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
13B-298V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET415CRUISE CONTROL/SPEED LIMITER DEACTIVATION
STATUS
DEFINITIONThis status varies according to engine specifications.
NOTESNone.
Note:
Cruise control can be activated when the vehicle speed exceeds 18 mph (30 km/h).
Status ET415 shows various reasons for deactivation of the cruise control / speed limiter function, due to
a driver request or the external environment (e.g. STATUS 1).
IMPORTANT:
Clear the fault memory by running command RZ001 "Fault memory" to reset this status to "NONE".
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
STATUS 1:Traction control request.
STATUS 2:Brake pedal depressed.
STATUS 3:Clutch pedal depressed.
STATUS 4:Suspend button pressed.
STATUS 5:Cruise control or speed limiter monitoring.
STATUS 6:Gear lever in neutral (manual gearbox) or neutral position (automatic gearbox).
EDC16CP33_V18_ET415 / EDC16CP33_V1C_ET415 / EDC16CP33_V54_ET415 / EDC16CP33_V20_ET415 / EDC16CP33_V58_ET415 /
EDC16CP33_V5C_ET415 / EDC16CP33_V24_ET415 / EDC16CP33_V04_ET415 / EDC16CP33_V08_ET415 / EDC16CP33_V44_ET415 /
EDC16CP33_V4C_ET415 / EDC16CP33_V34_ET415 / EDC16CP33_V38_ET415 / EDC16CP33_V74_ET415 / EDC16CP33_V28_ET415 /
EDC16CP33_V62_ET415 / EDC16CP33_V26_ET415 / EDC16CP33_V60_ET415
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
13B-300V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET415
CONTINUED 2
STATUS 2
Brake pedal depressed
The cruise control function is deactivated when the brake pedal is depressed.
Status ET415 becomes STATUS 2, when driving with the cruise control active
(ET042: CRUISE CONTROL) and brake pedal depressed.
This deactivates cruise control.
Reinitialise status ET415 on the injection computer by running command
RZ001 Fault memory.
If status ET415 becomes STATUS 2 without depressing the brake pedal, consult
the interpretation of statuses ET704 Brake contact no. 1 and ET705 Brake
contact no. 2.
STATUS 3Clutch pedal depressed
Manual gearbox ONLY
The cruise control function is deactivated when the gearbox is not coupled to
the engine (clutch pedal depressed).
Status ET415 becomes STATUS 3 when driving with the cruise control active
(ET042 Cruise control / speed limiter: CRUISE CONTROL) and the clutch pedal is
depressed.
This deactivates cruise control.
Reinitialise status ET415 on the injection computer by running command RZ001
Fault memory.
If status ET415 becomes STATUS 3 without the clutch pedal being depressed, consult
the interpretation of status ET405 Clutch pedal switch.
If the vehicle is fitted with an automatic transmission:
Test the multiplex network: check the configuration of the multiplex network in relation
to the vehicle's technical specification, especially the configuration of the automatic
transmission computer (see 88B, Multiplexing).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74