light RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Repair Manual

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -126V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF621
PRESENT
OR
STOREDEGR VALVE JAMMED OPEN (OBD FAULT)
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
Priorities when dealing with a number of faults:
–DF118 EGR solenoid valve servo-control,
–DF209 EGR valve position sensor circuit,
–DF272 EGR valve control circuit,
if they are present or stored.
Special note:
If the fault is present:
–there is heavy smoke coming from the exhaust,
–the OBD warning light will come on after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
IMPORTANT
If the EGR valve needs to be replaced to resolve the fault, use command SC036
Reinitialise programming and select EGR valve to reinitialise the EGR valve offsets
(see Replacement of components).
Check the EGR valve connections.
Check the injection computer connections.
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF621

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -128V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF652
PRESENT
OR
STOREDTURBINE UPSTREAM TEMPERATURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Short circuit or open circuit to + 12 V
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault becomes present:
–ignition is on (CC.0),
–following a road test, engine warm (CO.1).
Special notes:
If the fault is present:
–the EGR function is inhibited,
–particle filter regeneration is inhibited,
–the vehicle performance is reduced,
–the level 1 warning light is illuminated.
Priorities when dealing with a number of faults:
DF011 Sensor voltage supply no. 1
IMPORTANT
The turbine upstream temperature sensor only measures temperatures above
200˚C.
Check the condition of the turbine upstream temperature sensor connector (see Wiring Diagram Technical Note,
Mégane II, Scénic II, component code 1589).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Mégane II, Scénic II, component code 120).
If one of the connectors is 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.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF652

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -130V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF778
PRESENT
OR
STOREDTURBINE UPSTREAM TEMPERATURE CONTROL
1.DEF: Temperature measured too high
2.DEF: Parameter at max limit
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault becomes present:
–the engine is started with a speed greater than 1750 rpm and a fuel flow greater than
30 mg/st,
–a road test.
Special notes:
If the fault is present:
–particle filter regeneration is inhibited,
–the vehicle performance is reduced,
–the level 1 warning light is illuminated.
IMPORTANT
This fault can result in a rapid and significant fouling of the particle filter.
Apply TEST 3 Turbocharged air inlet circuit check.
Check the turbine upstream temperature sensor connections.
check the engine management computer connections.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF778

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 205V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET704
ET705
BRAKE CONTACT No. 1
BRAKE CONTACT No. 2
NOTESSpecial note:
Only perform the tests if the statuses do not correspond with the system programming
functions.
Note:
Statuses ET704 and ET705 should change at the same time. If they are not consistent, refer to the interpretation
of fault DF050 Brake switch circuit.
ACTIVE
or
INACTIVEIf the brake lights are working:
–check the continuity and make sure there is no interference resistance on the
following connection:
●connection code 5A,
between components 160 and 120/645/119.
If there is a repair method (See Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the brake lights are not operational, check:
–the condition and fitting of the brake switch,
–the condition and conformity of the brake lights fuse,
–the conformity of the values in the following table:
disconnect the switch and carry out the following checks:
for MEGANE II and SCENIC II with ESP:
Continuity between
connectionsInsulation between
connections
Switch engaged
(Brake pedal released)5A and BPT 65G and SP17
Switch released
(Brake pedal depressed)65G and SP17 5A and BPT
For MEGANE II and SCENIC II without ESP
Continuity between
connectionsInsulation between
connections
Switch engaged
(Brake pedal released)5A and BPT 65A and SP17
Switch released
(Brake pedal depressed)65G and SP17 5A and BPT
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16_V51_ET704/EDC16_V51_ET705

DIESEL INJECTION
Fault finding – Interpretation of commands13B
13B -210V3 MR-372-J84-13B250$765.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
SC002
ENTER INJECTOR CODES
NOTESThis command should be run after the injectors have been replaced and only if the
vehicle has been configured with IMA.
(ET104 USE OF INJECTOR CODES to YES).
If this command is not performed, the DF276 INJECTOR CODE PROGRAMMING
fault will be present.
WARNING
The letters J and Q, and figures 0 and 9 are not used in IMA coding.
If these characters are used the entry will be invalid.
Cylinder no. 1 is the cylinder located at the engine flywheel end.
Procedure to be followed:
–Read the 6-character alphanumeric codes etched on the upper section of the injector bodies.
–Use command SC002.
–Select the cylinder number for the cylinder concerned in the Desired, column, then confirm.
–Enter the injector code displayed for the cylinder.
–Enter the new codes for each cylinder, then confirm.
–When the command is completed, the modified codes appear in the Current column.
–Check that the codes correspond to those read earlier.
–If the codes entered appear in neither the Current column nor the Desired column, check the codes read and
make sure the data has been entered correctly,
The possible confusions are:
digit "1" with the letter "I"
figure 8 with the letter B
figure 5 with the letter S
–Exit fault finding mode.
–Switch off the ignition and wait for 1 min.
–Switch the ignition back on and check for faults.
–DF276 INJECTOR CODE PROGRAMMING should be stored.
If fault DF276 is still present, the command has not been performed correctly.
Start the procedure again and follow the instructions.
If the codes are still not recognised, check whether the computer's standby has been correctly set:
Switch off the ignition and wait for 1 min.
If the warning light flashes when the ignition is switched off, the computer has not been put on standby and the
command will be ignored.
If all these checks still do not enable the command to be confirmed, contact the Techline.
EDC16_V51_SC002

DIESEL INJECTION
Fault finding – Interpretation of commands13B
13B -218V3 MR-372-J84-13B250$765.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
* Opening cyclic ratio signalAC011
RAIL PRESSURE REGULATOR
NOTESThis command is used to check:
–the operation of the pressure regulator,
–and the high pressure injection circuit.
Step 1
Measure the pressure regulator resistance between tracks 1 and 2.
–Replace the regulator if its resistance is not approximately: 3 Ω ± 0.5 at 20˚C.
Check the continuity and absence of interference resistance of the following connections:
Injection computer brown 48-track connector B,
track M4track 2 of the rail pressure regulator connector
+ 12 V after relaytrack 1 of the rail pressure regulator connector
If, when running command AC011, you can hear a slight whistling noise and a crunching noise from the pressure
regulator, go to step 2. Otherwise, ensure that the computer output stage is functioning correctly:
Using a voltmeter:
With the solenoid valve connected, connect the voltmeter earth lead to track 2 of the fuel pressure solenoid valve
and the positive cable to track 1. Clear any fuel pressure solenoid valve faults, then run command AC011:
●The voltmeter should display two successive voltages: ~ 2.5 V for an opening cyclic ratio of 20% then ~ 8.75 V
for an opening cyclic ratio* of 70% (ten cycles).
Or using an oscilloscope (range 5 V/division and with time base 1 ms/division):
With the solenoid valve connected, connect the oscilloscope earth to the battery earth and the positive contact point
on track 2 of the fuel pressure solenoid valve; clear any fuel pressure solenoid valve faults then run command
AC011:
●the oscilloscope should display a square wave signal with an amplitude of 12.5 V at a frequency of 185 Hz (with
an OCR* passing from 20 to 70%).
If the measurement is correct, replace the regulator.
If the measurement is not correct, contact the Techline.
EDC16_V51_AC011

DIESEL INJECTION
Fault finding – Interpretation of commands13B
13B -220V3 MR-372-J84-13B250$765.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
AC012
DAMPER VALVE
NOTESThis command allows you to check the operation of the damper valve.
–Measure the resistance of the damper valve solenoid valve between tracks 1 and 2.
Replace the solenoid valve if the resistance is not: 46 ± 3 Ω at + 25˚C.
–Check for continuity and for the absence of interference resistance on the following connections:
Injection computer, brown 48-track connector
B, track M1track 1 of the damper valve solenoid valve
connector
+ 12 V after relaytrack 2 of the damper valve solenoid valve
connector
A) Engine running at idle speed
Make sure that there is a pressure of ~ 900 mbar on the solenoid valve inlet hose.
Make the necessary repairs (pressure circuit conformity and seal).
B) With the vehicle ignition on, engine stopped
Make sure the damper valve is open.
If not, clean or replace the air vent unit.
Disconnect the solenoid valve inlet and outlet hoses,
Connect a vacuum pump to the inlet union and apply a pressure of ~900 mbar
If there is a leak, replace the solenoid valve.
Run command AC012.
Otherwise, with the solenoid valve connected, check operation of the computer output stage with a voltmeter:
Voltmeter earth cabletrack 1 of the solenoid valve
Voltmeter positive leadtrack 2 of the solenoid valve
Clear any solenoid valve faults,
Run command AC012.
The voltmeter should display ten ON-OFF cycles (8.75 V then 2.5 V).
If the measurement is correct, replace the solenoid valve.
If the measurement does not show any lights, contact the Techline.
C) Vehicle with ignition off
Connect a vacuum pump to the flap control diaphragm and apply a pressure of ~900 mbar:
If the diaphragm does not maintain the negative pressure, replace the air vent unit (the diaphragm cannot be
disconnected).
If the diaphragm maintains the vacuum and the flap does not operate, clean or replace the air vent unit.
If the diaphragm maintains the underpressure and the valve operates, then operate it several times to ensure
that there is no blockage.
Check for clogging of the air vent unit and its valve, and clean if necessary.
EDC16_V51_AC012

DIESEL INJECTION
Fault finding – Fault Finding Chart13B
13B -226V3 MR-372-J84-13B250$855.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
ALP2
CONTINUED 2
Is there any diesel in the tank?
YES
Does the starter motor work properly?
(Check an engine speed
> ~ 250 rpm is obtained with the starter motor,
PR055 Engine speed)
YES
Using the diagnostic tool, check the conformity of the
immobiliser: ET003 Immobiliser must be
INACTIVE.
ET003 not
correct or
immobiliser warning
light permanently
illuminatedET003 correct (immobiliser
code warning light off)
Consult the fault finding procedure
for the immobiliser.
NOFill the tank with diesel fuel.
Bleed the low and high pressure diesel
circuit.
NOConsult Technical Note 6014A,
Checking the charging circuit, 16A,
Starter fault finding, Starter.
Continue the fault finding procedure with Part A of this fault finding
chart.
AFTER REPAIRcarry out a road test followed by a complete check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Fault Finding Chart13B
13B -228V3 MR-372-J84-13B250$855.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
ALP4 Poor performance
NOTESBefore analysing this customer complaint, check that there are no faults, and the
conformity (or otherwise) of the parameters and statuses, using the diagnostic
tool.
If the customer complaint is not ironed out, perform the following checks:
IMPORTANT
In the event of the engine overheating above 119˚C, the computer will voluntarily limit the fuel flow
(overheating warning light comes on from 115˚C).
–Please observe the cleanliness guidelines and safety advice.
Is the poor performance accompanied by smoke?
YES
Check:
–The conformity of the fuel used: apply test 10 Diesel fuel conformity check.
If the diesel fuel is not correct: – Replace the diesel fuel.
–Change the diesel filter.
–Bleed the low and high pressure diesel circuit.
–The conformity of the assembly of the injectors (presence and conformity of the sealing washer).
Checking procedure:
–Take a straightedge approximately 40 cm long and place it on the 4 injectors. The straightedge should rest on
the 4 injectors.
–If 1 injector protrudes, remove the injector and check that the washer is correct.
–If one injector does not touch the straightedge (clearance of more than 1 mm), remove the injector and check
that the washer is present.
–Clean the injector well and the injector, refit the injector with its correct sealing washer.
The sealing and condition of the inlet circuit: apply test 3 Turbocharged air inlet circuit check.
–The condition of the air flowmeter: apply test 4 Air flowmeter.
–The turbocharger: apply test 9 Air line at the turbocharger, then test 5 Turbocharger control solenoid valve
check and test 6 Turbocharger.
check that the turbocharging pressure follows the increase in engine speed and that the loop difference with the
turbocharging pressure is low.
Otherwise, replace the turbocharger.
NO
AFTER REPAIRcarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V51_ALP4

DIESEL INJECTION
Fault finding – Test13B
13B -250V3 MR-372-J84-13B250$900.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
TEST5
CONTINUED 2
Visual inspection of the solenoid valve electrical connector
Switch off the engine.
Note:
The requested checks are entirely visual.
1- Check that the connector is correctly connected and locked.
2- Check that the electric wires are not damaged where they leave the insulation.
Disconnect the connector to continue the checks.
3- Check that there is no heat damage to the unit and mechanical damage to the lock.
4- Check that the contacts (clips and tabs) are not deformed.
5- Check the sealing of the connector.
Do the visual inspections highlight any damage?
NO YES
If there is a repair procedure (see Technical
Note 6015A, Electrical wiring repair, Wiring:
Precautions for repair), repair the connector,
otherwise replace the wiring.
After repair, restart the test from the beginning.
C
1