ECU RENAULT SCENIC 2012 J95 / 3.G Engine And Peripherals EDC16CP33 Workshop Manual

13B-3V12 MR-372-J84-13B300$010.mif
DIESEL INJECTION
Fault finding – Introduction13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Faults
Faults are declared present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but are not diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is switched on
following + after ignition feed is activated (no system components active).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the Notes section.
If the fault is confirmed when the instructions are applied, the fault is present. Deal with the fault.
If the fault is not confirmed, check:
– the electrical lines which correspond to the fault,
– the connectors on these lines (corrosion, bent pins, etc.),
– the resistance of the faulty component,
– the condition of the wires (melted or cut insulation, wear).
Conformity check
The purpose of the conformity check is to check data that does not produce a fault on the diagnostic tool if the data
is inconsistent. Therefore, this stage is used to:
– carry out fault finding on faults that do not have a fault display, and which may correspond to a customer complaint.
– check that the system is operating correctly and that there is no risk of a fault recurring after repair.
The conformity check is a fault finding procedure carried out using the interpretation of statuses and parameters.
If a status does not function normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding pages (see interpretation of statuses and parameters).
Customer complaints - Fault finding chart
If the test with the diagnostic tool is correct but the customer complaint is still present, the fault should be dealt with
by customer complaints. WARNING:
Deal first with instrument panel faults (eg. "Particle filter" warning light).
Then carry out scheduled maintenance on the vehicle.
A synopsis of the general procedure to follow is provided on the following page in the form of a flow chart.

13B-5V12 MR-372-J84-13B300$010.mif
DIESEL INJECTION
Fault finding – Introduction13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
4. FAULT FINDING PROCEDURE (continued)
4.1 Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring may temporarily clear the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Physical inspection
When handling the wiring, use the diagnostic tool to detect any change in the status of the fault from stored to
present.
Make sure that the connectors are firmly secured.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping
on the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that the clips or tabs have not been bent back during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or with another wire.
If a fault is detected, repair or replace the wiring harness.

13B-19V12 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
Warning light management:
Instrument panel display
The computer displays certain information on the instrument panel relating to engine operation. This concerns five
functions:
– the pre-postheating warning light,
– the coolant temperature warning light,
–the level 1 fault warning light (non-critical fault),
–the level 2 fault warning light (emergency stop),
–the EOBD (European On Board Diagnostic) warning light,
These six functions are represented by 3 warning lights and/or messages displayed by the on-board computer.
Orange pre-post heating/non-critical fault SERVICE warning light (severity 1)
This light is used both as an in-operation indicator light and as a system fault indicator:
– Continuously lit with + after ignition feed:
Indicates preheating of the spark plugs.
– Continuously lit with the Check injection message:
Indicates a level 1 fault (involving operation of the injection system in defect mode).
The driver should have the repairs carried out as soon as possible.
Temperature / red emergency STOP warning light (level 2)
This indicator light is used both as an in-operation indicator light and as a system fault warning light. It lights up for
3 seconds after the ignition is switched on (automatic test procedure managed by the instrument panel):
– Continuously lit:
Indicates engine overheating (the driver is free to choose whether or not to stop the vehicle).
– Continuously lit with the faulty injection message:
Indicates a level 2 fault (In this case, the injection is automatically cut after a few seconds).
The driver should carry out repairs as soon as possible.
ORANGE Excessive pollution EOBD warning light
Symbolised by an engine, it lights up for approximately 3 seconds when the ignition is switched on.
This warning light comes on if the system has one or more EOBD faults.
This warning light is used to alert the driver to injection faults that could lead to excessive pollution, or if the EOBD
system (European On Board Diagnostic) has been deactivated.
The injection computer requests illumination of the EOBD warning light for a present fault only after three
consecutive driving cycles.
The 3 second visual inspection when the ignition is switched on (automatic test procedure managed by the
instrument panel) is carried out by the injection computer.
Special particle filter ORANGE warning light or warning message (depending on instrument panel)
Only for Vdiag: 18, 1C, 54, 20, 58, 5C, 24, 26 and 60.
This warning light or message is used to warn the driver that the particle filter is loaded with particles, (see the soot
weight thresholds for illumination of the warning light for fault DF312 Speed request) due to driving conditions which
were not suitable for regeneration to take place. The driver must then drive as soon as possible at an average speed
of 48 mph (80 km/h) subject to the road conditions and authorised speed limits, until the warning light goes out.

13B-131
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$072.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF069
PRESENT
OR
STOREDIMPACT DETECTED SIGNAL
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present under + after ignition feed.
Special notes:
As soon as the injection computer receives this signal:
– engine operation is prohibited,
the level 2 warning light is lit.
The fault appears when the injection computer receives a frontal impact signal from the Airbag computer via the
multiplex network.
Do not deal with this fault.
If the vehicle has been involved in an accident:
Carry out any necessary repairs,
– clear the fault,
– switch off the ignition,
–wait for 1 minute,
– switch on the ignition.
If the fault does not reappear, end of fault finding procedure.
If the fault recurs, run fault finding on the AIRBAG computer.
If the vehicle has not been involved in an accident:
Run fault finding on the AIRBAG computer (see 88C, Airbag and pretensioner).
EDC16CP33_V18_DF069 / EDC16CP33_V1C_DF069 / EDC16CP33_V54_DF069 / EDC16CP33_V20_DF069 / EDC16CP33_V58_DF069 /
EDC16CP33_V5C_DF069 / EDC16CP33_V24_DF069 / EDC16CP33_V04_DF069 / EDC16CP33_V08_DF069 / EDC16CP33_V44_DF069 /
EDC16CP33_V4C_DF069 / EDC16CP33_V34_DF069 / EDC16CP33_V38_DF069 / EDC16CP33_V74_DF069 / EDC16CP33_V28_DF069 /
EDC16CP33_V62_DF069 / EDC16CP33_V26_DF069 / EDC16CP33_V60_DF069

13B-143
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
13B
DF120
PRESENT
OR
STOREDENGINE SPEED SENSOR SIGNAL
1.DEF: Engine speed signal interference, broken tooth on flywheel or engine speed
sensor internal fault
2.DEF: No engine speed signal, or interference affecting engine speed signal
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– starting the engine,
– a road test,
– attempting to start the engine.
Special notes:
The engine speed sensor is consistent with the camshaft sensor.
If the fault is present:
– particle filter regeneration is inhibited,
–the level 2 warning light is lit.
Use bornier Elé.1681 for any operations on the injection computer connectors.
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 engine speed sensor connector (see Wiring Diagram Technical Note, Laguna II ph2,
Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 149).
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.
Check that the sensor is securely attached.
Measure the resistance between connections 3BG and 3BL of component 149.
If the winding resistance is not between 600Ω and 1000Ω, replace the engine speed sensor.
EDC16CP33_V18_DF120 / EDC16CP33_V1C_DF120 / EDC16CP33_V54_DF120 / EDC16CP33_V20_DF120 / EDC16CP33_V58_DF120 /
EDC16CP33_V5C_DF120 / EDC16CP33_V24_DF120 / EDC16CP33_V04_DF120 / EDC16CP33_V08_DF120 / EDC16CP33_V44_DF120 /
EDC16CP33_V4C_DF120 / EDC16CP33_V34_DF120 / EDC16CP33_V38_DF120 / EDC16CP33_V74_DF120 / EDC16CP33_V28_DF120 /
EDC16CP33_V62_DF120/ EDC16CP33_V26_DF120 / EDC16CP33_V60_DF120
DIESEL INJECTION
Fault finding – Interpretation of faults
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-185
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
DF297
PRESENT
OR
STOREDPRESSURE SENSOR
1. DEF: Absent
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
– particle filter regeneration is inhibited,
– blue/white smoke and black particles coming from the exhaust,
– the EOBD (European On Board Diagnostic) warning light will come on after three
consecutive driving cycles (starting + 5 seconds + switch off the ignition and wait
40 seconds).
–The level 1 warning light is lit (for Vdiag 20, 24, 58, 5C, 26, 28, 60 and 62).
Priorities when dealing with a number of faults:
– DF315 Particle filter diff. pressure sensor if present or stored.
– DF717 Particle filter upstream pressure if it is present or stored.
NOTE:
In the long term, this fault may lead to premature wear and a greater risk of turbocharger
failure.
Check the condition of the differential pressure sensor connector (see Wiring Diagram Technical Note, Laguna
II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1290).
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.
EDC16CP33_V18_DF297 / EDC16CP33_V1C_DF297 / EDC16CP33_V54_DF297 / EDC16CP33_V20_DF297 / EDC16CP33_V58_DF297 /
EDC16CP33_V5C_DF297 / EDC16CP33_V24_DF297 / EDC16CP33_V28_DF297 / EDC16CP33_V62_DF297 / EDC16CP33_V26_DF297 /
EDC16CP33_V60_DF297
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-195
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
DF310
PRESENT
OR
STOREDPARTICLE FILT. UPSTREAM TEMP SENSOR
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESConditions for applying fault finding procedures to stored faults:
The fault becomes present if:
– ignition is on (CC.0),
– following a road test, engine warm (CO.1).
Special notes:
If the fault is present:
– particle filter regeneration is inhibited,
–the level 1 warning light is lit,
– the EOBD (European On Board Diagnostic) warning light will come on after three
consecutive driving cycles (starting + 5 seconds + switching off the ignition and
waiting for 1 minute).
IMPORTANT:
The particle filter upstream temperature sensor only measures temperatures above
50°C.
CC.0
NOTESNone.
Check the condition of the particle filter upstream temperature sensor connector (see Wiring Diagram Technical
Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1287).
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 there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation from earth of the following connections:
•3XT between components 120 and 1287,
•3TD between components 120 and 1287.
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.
EDC16CP33_V18_DF310 / EDC16CP33_V1C_DF310 / EDC16CP33_V54_DF310 / EDC16CP33_V20_DF310 / EDC16CP33_V58_DF310 /
EDC16CP33_V5C_DF310 / EDC16CP33_V24_DF310 / EDC16CP33_V28_DF310 / EDC16CP33_V62_DF310 / EDC16CP33_V26_DF310 /
EDC16CP33_V60_DF310
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-205
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$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF315
PRESENT
OR
STOREDPARTICLE FILTER DIFFERENTIAL PRESSURE SENSOR
CO: Open circuit
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
–the level 1 warning light is lit,
– the EOBD (European On Board Diagnostic) warning light will come on after three
consecutive driving cycles (starting + 5 seconds + switching off the ignition and
waiting for 1 minute),
– the particle filter fault finding procedure is inhibited,
– particle filter regeneration is inhibited.
Priorities when dealing with a number of faults:
–DF315 if it is present.
–DF308 Particle filter clogged if DF315 is stored and DF308 is present.
–DF011 Sensor supply voltage no. 1 if it is present or stored.
CC.1
NOTESNone.
Check the condition of the differential pressure sensor connector (see Wiring Diagram Technical Note, Laguna
II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 1290).
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.
EDC16CP33_V18_DF315 / EDC16CP33_V1C_DF315 / EDC16CP33_V54_DF315 / EDC16CP33_V20_DF315 / EDC16CP33_V58_DF315 /
EDC16CP33_V5C_DF315 / EDC16CP33_V24_DF315 / EDC16CP33_V28_DF315 / EDC16CP33_V62_DF315 / EDC16CP33_V26_DF315 /
EDC16CP33_V60_DF315
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-234
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$074.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF717
PRESENT
OR
STOREDPARTICLE FILTER UPSTREAM PRESSURE
1.DEF: Inconsistency
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine is started or following a road test.
Special notes:
If the fault is present:
–the level 1 warning light is lit,
– the EOBD (European On Board Diagnostic) warning light will come on after three
consecutive driving cycles (starting + 5 seconds + switching off the ignition and
waiting for 1 minute),
– the particle filter fault finding procedure is inhibited,
– particle filter regeneration is inhibited.
Check the condition of the pressure pipe between the particle filter upstream take-off point and the differential
pressure sensor.
Check that the pipe is not crushed, blocked or pierced.
Check that the differential pressure sensor is correctly positioned and connected (see MR 395, 402, 405, 364, 370,
Mechanical, 19B Exhaust, Particle filter pressure sensor: Removal - Refitting).
Replace the pressure pipe if necessary.
EDC16CP33_V18_DF717 / EDC16CP33_V1C_DF717 / EDC16CP33_V54_DF717 / EDC16CP33_V20_DF717 / EDC16CP33_V58_DF717 /
EDC16CP33_V5C_DF717 / EDC16CP33_V24_DF717 / EDC16CP33_V28_DF717 / EDC16CP33_V62_DF717 / EDC16CP33_V26_DF717 /
EDC16CP33_V60_DF717
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62