lock RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals Workshop Manual

13B-5V4 MR-372-J84-13B000$010.mif
DIESEL INJECTION
Fault finding – Introduction13B
DDCR INJECTION
Vdiag No.: 44, 48
4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring may temporarily clear the cause of a fault.
The electrical measurements of the voltage, resistance, and insulation are generally correct, especially if the fault is
not present when the measurements are being taken (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 locked.
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 their crimping (no crimping on
the insulation). Check that the clips and the tabs are correctly locked in the sockets.
Check that no clips or tabs have been dislodged 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.
5. FAULT FINDING LOG
IMPORTANTIMPORTANT
Any fault on a complex system requires thorough fault finding with the appropriate tools.
The FAULT FINDING LOG, which should be completed during the procedure, enables you to
keep track of the procedure which is carried out. It is an essential document when consulting
the manufacturer.
IT IS THEREFORE COMPULSORY TO COMPLETE A FAULT FINDING LOG EVERY TIME A FAULT FINDING
PROCEDURE IS PERFORMED

13B-60
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF054
STOREDTURBOCHARGING SOLENOID VALVE CONTROL CIRCUITCO.0: Open circuit or short circuit to earth
CC.1: Short circuit to +12 volts
1.DEF: At minimum limit
2.DEF: At maximum limit
NOTESSpecial notes:
If DF054, the performance of the vehicle is adversely affected and the level 1 warning
light illuminates along with the message Faulty injection.
Check the condition of the air filter, and replace it if necessary.
Check that the inlet manifold is not blocked (clogged).
Check that the turbocharger is working properly, and carry out any necessary repairs.
Check the connection and condition of the 2-track connector of the turbocharging solenoid valve.
Repair if necessary.
Check for +12 V on track 2 of the solenoid valve.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the continuity, insulation, and the absence of interference resistance on the following connections:
Solenoid valve connector track 2 + after ignition feed
Solenoid valve connector track 1 Track M2 computer connector B
Repair if necessary.
Run TEST 11 Air line at the turbocharger.
Run TEST 10 Turbocharger control solenoid valve check.
Run TEST 12 Turbocharger.
If the fault persists, replace the turbocharging solenoid valve.
DDCR_V44_DF054M/DDCR_V48_DF054M

13B-61
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF056
PRESENT
OR
STOREDAIR FLOW SENSOR CIRCUIT1.DEF: Permanent low level
2.DEF: Permanent high signal
3.DEF: Below minimum threshold
4.DEF: Above maximum threshold
5.DEF: At minimum limit
6.DEF: At maximum limit
NOTESPriority when dealing with a number of faults:
– DF054 Turbocharging solenoid valve control circuit.
– DF113 Sensor supply voltage.
Conditions for applying fault finding procedures to stored faults:
the fault reappears after the faults have been cleared followed by a road test.
Check the condition of the air filter, and replace it if necessary.
Check that the inlet manifold is not blocked (clogged).
Check that the turbocharger is working properly.
Run TEST 11 Air line at the turbocharger.
Run TEST 10 Turbocharger control solenoid valve check.
Run TEST 12 Turbocharger.
Carry out the necessary repairs.
Check the connection and condition of the 6-track connector of the air flow sensor.
Repair if necessary.
Check for +5 V after ignition feed on track 3 of the sensor connector.
Repair if necessary.
Check for +12 V on track 4 of the sensor connector.
Repair if necessary.
Check for earth on connector track 6.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
DDCR_V44_DF056/DDCR_V48_DF056

13B-69
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF089
CONTINUED 1
5.DEF-6.DEF
7.DEFNOTESNone.
Visually check the turbocharging circuit sealing.
Run TEST 11 Air line at the turbocharger.
Repair if necessary.
Remove the air supply ducts and check that they are not blocked.
Repair if necessary.
Check for consistency between the atmospheric pressure and the manifold pressure (PR035 = PR032).
With the engine stopped, the pressure should be approximately the same between the 2 sensors.
Replace the manifold pressure sensor if necessary.
Check the turbocharger,
Run TEST 10 Turbocharger control solenoid valve check.
Run TEST 12 Turbocharger.
Repair if necessary.

13B-70
AFTER REPAIRDeal with any faults declared 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$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF089
CONTINUED 2
K9K 728 ENGINE
1.DEF-2.DEF
3.DEF-4.DEF
NOTESNone.
Check the connection and condition of the 4-track connector of the inlet pressure sensor.
Repair if necessary.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connections:
Sensor connector track 1 track C3 computer connector B
Sensor connector track 2 track J2 computer connector B
Sensor connector track 3 track C1 computer connector B
Sensor connector track 4 track C2 computer connector B
Repair if necessary.
5.DEF
6.DEF - 7.DEF
NOTESNone.
Visually check the turbocharging circuit sealing,
Run TEST 11 Air line at the turbocharger.
Repair if necessary.
Remove the air supply ducts and check that they are not blocked.
Repair if necessary.
Check for consistency between the atmospheric pressure and the manifold pressure (PR035 = PR032).
With the engine stopped, the pressure should be approximately the same between the 2 sensors.
Replace the manifold pressure sensor if necessary.
In case of 6.DEF and 7.DEF, check the turbocharger.
Run TEST 10 Turbocharger control solenoid valve check.
Run TEST 12 Turbocharger.
Repair if necessary

13B-85V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
MAIN COMPUTER STATUSES AND PARAMETERS: (continued 2)
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
EngineET038: Engine.
UNDER + AFTER
IGNITION FEEDIndicates the current status of
the engine.
- UNDER + AFTER IGNITION
FEED
- UNDER STARTER
- RUNNING
- SUPPLY MAINTAINED: Supply
maintained during the power
latch phase.
- STALLED: When the engine
has stalled.
- PROTECTED: When a level 2
fault has appeared or when
the engine speed is locked at
a certain value.NONE
Engine
immobiliserET003: Engine
immobiliser.
INACTIVEIndicates the status of the
immobiliser system.
- INACTIVE: The injection
computer has recognised the
immobiliser code transmitted
by the UCH.
- ACTIVE: The injection
computer does not recognise
the immobiliser code
transmitted by the UCH.If ACTIVE, apply the
associated Help given in
the tool.
Code
programmedET006: Code
programmed
YESIndicates whether the
immobiliser code has been
programmed into the computer.
- YES: Code is programmed.
- NO: Code was not
programmed into the injection
computer.If NO, contact the Techline.

13B-87V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
STARTING SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
+ After ignition
computer feedET001: + After ignition
computer feed.
PRESENTIndicates + after ignition feed to
the computer.
- Present
- AbsentIn the event of a fault, apply
the fault finding procedure for
DF047 "Computer feed
voltage" or DF015 "Main relay
control circuit".
StartingET076: Starting.
AUTHORISEDIndicates whether or not
starting has been authorised by
the injection.
AUTHORISED: The injection
authorises starting.
PROHIBITED: The injection
does not authorise starting.If PROHIBITED, carry out
a complete fault finding
procedure on the preheating
system.
EngineET038: Engine.
UNDER + AFTER
IGNITION FEEDIndicates the current status of
the engine.
- UNDER + AFTER IGNITION
FEED
- UNDER STARTER
- RUNNING
- SUPPLY MAINTAINED: Supply
maintained during the power
latch phase.
- STALLED: When the engine
has stalled.
- PROTECTED: When a fault has
appeared or when the engine
speed is locked at a certain
value.NONE
Battery
voltagePR074: Battery
voltage.12 V < PR074 < 13.5 VIf there is a fault, apply the
fault finding procedure for
the "Charge circuit".

13B-105V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
MAIN COMPUTER STATUSES AND PARAMETERS (continued 1):
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Fuel
temperaturePR063: Fuel
temperature.
Cold = PR064
Warm: 50°CGives the fuel temperature
in °C. This value is supplied by
"the fuel temperature sensor".
Default value: 30°C.In the event of a fault, apply
the fault finding procedure for
fault DF098 "Fuel temperature
sensor circuit".
Air circuit
pressure.PR035: Atmospheric
pressure.Indicates the atmospheric
pressure in mbar. The sensor is
built into the computer.
600 mbar < Cold < 1050 mbar
600 mbar < Warm < 1050 mbar.If not consistent, check that
PR035 = PR032 = local
atmospheric pressure, with
the engine stopped and
the ignition on.
PR032: Inlet pressure.Indicates the pressure in the
inlet circuit in mbar.
PR032 = Local atmospheric
pressure.
Rail pressurePR038: Rail pressure.
Cold: 260 bar.
Warm: 230 bar.Indicates the pressure, in bar, of
the diesel fuel in the injector
rail. This pressure is supplied
by the sensor on the rail.
Default value: 2000 barIn the event of a fault apply
the fault finding procedure for
fault DF007 "Rail pressure
sensor circuit".
EngineET038: Engine
runningIndicates the current status of
the engine.
- UNDER + AFTER IGNITION
FEED
- UNDER STARTER
- RUNNING
- SUPPLY MAINTAINED: Supply
maintained during the power
latch phase.
- STALLED: When the engine has
stalled.
- PROTECTED: When a level 2
fault has appeared or when the
engine speed is locked at
a certain value.NONE

13B-107V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
STARTING SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
+ After ignition
computer feedET001: + After ignition
computer feed.
PRESENTIndicates + after ignition feed to
the computer.
- Present
- AbsentIn the event of a fault, carry
out the fault finding
procedure for DF047
"Computer supply voltage" or
DF015 "Main relay circuit".
StartingET076: Starting.
AUTHORISEDIndicates whether or not
starting has been authorised by
the injection.
AUTHORISED: The injection
authorises starting.
PROHIBITED: The injection
does not authorise starting.If PROHIBITED, carry out
a complete fault finding
procedure on the preheating
system.
EngineET038: Engine.
RUNNINGIndicates the current status of
the engine.
- UNDER + AFTER IGNITION
FEED
- UNDER STARTER
- RUNNING
- SUPPLY MAINTAINED: Supply
maintained during the power
latch phase.
- STALLED: When the engine
has stalled.
- PROTECTED: When a fault has
appeared or when the engine
speed is locked at a certain
value.NONE
Battery
voltagePR074: Battery
voltage.13 V < PR074 < 14 VIf there is a fault, apply
the fault finding procedure for
the "Charge circuit".

13B-149V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 2 Electrical circuit check
Check the battery charge and that the alternator is
operating correctly (see 87G, Engine compartment
connection unit for Mégane II or Scénic II).
Is the charging circuit in good order? Carry out the necessary repairs
Check the fuses.
Are the fuses correct? Carry out the necessary repairs
Check that the injection locking relay is operating
correctly.
Is the injection locking relay working properly? Carry out the necessary repairs
Check the engine earths.
Are the engine earths correct?Carry out the necessary repairs
The electrical circuit is in good order.
NO
YES
NO
YES
NO
YES
NO
YES
DDCR_V44_TEST02/DDCR_V48_TEST02