battery RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16 Injection Workshop Manual

13B - 4
DIESEL INJECTION
Fault finding - Introduction13B
V10 MR-372-J84-13B150$047.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
4. FAULT FINDING PROCEDURE
Perform a pre-diagnostic on
the system*
Print the system fault finding log
(available on CLIP and in the
Workshop Repair Manual or
Technical Note)
Connect CLIP
no
Dialogue with
computer?
yes
Read the faults
no
Faults
present
yes
Deal with present faults
Deal with stored faults
no
The cause is
still presentFault
solved
yes
* Check the battery charge, the condition of the
fuses and the level in the tank.
See ALP no. 1
Conformity check
no
The cause is
still presentFault
solved
Use Fault Finding Charts
(ALPs)
no
The cause is
still presentFault
solved
Contact the Techline with the
completed fault finding log

13B - 6
DIESEL INJECTION
Fault finding - Introduction13B
V10 MR-372-J84-13B150$047.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
5. FAULT FINDING LOG
You will always be asked for this log:
– when requesting technical assistance from Techline,
– for approval requests when replacing parts for which approval is mandatory,
– to be attached to monitored parts for which reimbursement is requested. The log is needed for warranty
reimbursement, and enables better analysis of the parts removed.
6. SAFETY ADVICE
Safety rules must be observed whenever work is carried out on a component to prevent physical damage or human
injury:
– check the battery voltage to avoid incorrect operation of computer functions,
– use the proper tools.
7. CLEANLINESS ADVICE THAT MUST BE OBSERVED WHEN WORKING ON THE HIGH PRESSURE DIRECT
INJECTION SYSTEM
Risks relating to contamination
The system is highly sensitive to contamination. The risks caused by the introduction of contamination are:
– damage or destruction to the high pressure injection system and the engine,
– a component seizing or leaking.
All After-Sales operations must be performed under very clean conditions. Performing an operation in a very clean
environment means that no impurities (particles only a few microns in size) will have been able to enter the system
during dismantling or into the circuits via the fuel unions.
The cleanliness principle must be applied from the filter to the injectors.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 MANDATORY TO FILL OUT A FAULT FINDING LOG FOR EACH FAULT
FINDING PROCEDURE.

13B - 11
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
Multiplex connection between the vehicle's various computers
The Mégane II electronic system is a multiplex network. This enables dialogue between the various vehicle
computers. As a result:
– the activation of the fault warning lights on the instrument panel is performed by the multiplex network, with the
vehicle speed sensor on the gearbox deactivated,
– the vehicle speed signal is transmitted by the ABS-ESP computer via the multiplex network.
The system can inject diesel fuel into the engine at a pressure of up to 1350 bar. Before each operation, check that
the injection rail is depressurised and that the fuel temperature is not too high.
When working on the high pressure injection system, you must follow the cleanliness guidelines and safety advice
specified in this document.
Removal of the internal parts of the pump and injectors is prohibited. Only the fuel flow actuator, the diesel fuel
temperature sensor and the air vent unit 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, the pressure sensor, the rail and the five high pressure pipes must be replaced.
It is strictly prohibited to remove any injection pump pulley bearing the number 070 575. If the pump needs to be
replaced, replace the pulley.
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. IMPORTANT
The engine must not operate with:
– Diesel fuel containing more than 10 % diester,
– Petrol, even in tiny quantities.

13B - 17
DIESEL INJECTION
Fault finding - Allocation of computer tracks13B
V10 MR-372-J84-13B150$141.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4CDIESEL INJECTION
Fault finding - Allocation of computer tracks
1 - Black connector A, 32-track 1 - Black connector A, 32-track (continued)
Track Description
A1 Not used
A2 Cruise control switch earth
A3 CAN L network signal
A4 CAN H network signal
B1 Not used
B2 Not used
B3 Not used
B4 K line diagnostic socket output
C1 Not used
C2 Not used
C3 Cruise control switch supply
C4 Clutch supply signal output
D1 Protection and Switching Unit supply
D2 Cruise control programming control
D3 Cruise control programming feedback
signal
D4 Not used
E1 Not used
E2 Not used
E3 Not used
E4 Brake switch supply signal output
F1 Not used
F2 Accelerator potentiometer load 2 supply
F3 Accelerator potentiometer load 2 signal
F4 Accelerator potentiometer load 2 earth
Track Description
G1 UPC supply
G2 Accelerator potentiometer load 1 supply
G3 Not used
G4 Battery earth
H1 Battery earth
H2 Accelerator potentiometer load 1 signal
H3 Accelerator potentiometer load 1 earth
H4 Battery earth
MR-372-J84-13B150$141.mif

13B - 20
DIESEL INJECTION
Fault finding - Replacement of components13B
V10 MR-372-J84-13B150$188.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Replacement of components
COMPUTER REPLACEMENT OR REPROGRAMMING OPERATIONS
The system can be programmed or reprogrammed via the diagnostic socket using the RENAULT CLIP diagnostic
tool (see Technical Note 3585A).
While the computer is being reprogrammed the engine fan assemblies are automatically triggered).
Operations to be carried out before reprogramming the injection computer:
Before reprogramming the injection computer, move the main Cruise control/Speed limiter switch to the rest position.
The information about the cruise control or the speed limiter displayed on the instrument panel disappears.
Otherwise, if the main switch remains in the cruise control or speed limiter position during and after reprogramming,
the Cruise control/Speed limiter function will not be operational.
To reset the function, proceed as follows:
Vehicle ignition on.
– Position the main switch in rest position (the computer then detects the rest position).
– Position the switch in Cruise control position to activate the Cruise control function.
– Position the switch in Speed limiter position to activate the Speed Limiter function.
Before reprogramming or replacing the computer in After-Sales operations, backup the following data to the
diagnostic tool:
– The IMA codes (individual correction of the injector).
– The engine adaptives (engine speed, and options available on the vehicle).
(this file corresponds to the last save carried out on the tool)
select YES,
When the backup is complete, replace the computer or reprogram, then proceed to the next step,
with command SC003 Backup computer data. IMPORTANT
–Switch on the diagnostic tool (mains or cigarette lighter feed).
–Connect a battery charger.
–Switch off all electrical consumers (lights, interior lights, air conditioning, radio/CD, etc.).
–Wait for the engine to cool (engine coolant temperature below 60 °C and air temperature below 50 °C).
WARNING
A computer without the IMA option can be replaced by a computer with this option. The codes have
therefore not been backed up during command SC003.
In this case, status ET104 "Injector code use" becomes "YES" or "FAULTY", fault DF276 "Injector code
programming" is present, and the engine operates in defect mode.
In this case, run command SC002 Enter injector codes, applying the procedure described in the
interpretation of this command.
MR-372-J84-13B150$188.mif

13B - 24
DIESEL INJECTION
Fault finding - Fault summary table13B
V10 MR-372-J84-13B150$235.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
Tool
faultAssociated
DTCDiagnostic tool titleLevel 1
fault warning
light (Orange
heater plugs
“on” indicator
light)Level 2 fault
warning light
(Red overheating
warning light)No fault
warning
light litOBD
warning
light lit
DF040 201Cylinder 1 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF041 202Cylinder 2 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF042 203Cylinder 3 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF043 204Cylinder 4 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF046 560Battery voltage ... ... 1.DEF/2.DEF ...
DF047 615Computer feed voltage ... ... X ...
DF049 530Refrigerant sensor circuit ... ... CC.1/CO.0 ...
DF050 571Brake switch circuit ... ... 1.DEF/2.DEF ...
DF051 575Cruise control/speed limiter
function... ... 1.DEF /
2.DEF /
3.DEF...
DF053 89Rail pressure regulation function 3.DEF / 8.DEF CC.0 / CC.1 / CO /
1.DEF / 2.DEF /
5.DEF / 6.DEF / 7.DEF4.DEF ...
DF054 33Turbocharging solenoid valve
control circuitCO/CC.0/CC.1/
1.DEF... ... ...
DF055 243Turbocharging pressure
regulation circuit1.DEF/2.DEF ... ... ...
DF056 100Air flow sensor circuit 3.DEF/4.DEF ... CC.0/CC.1/
1.DEF/2.DEF
DF057 2264Water in diesel fuel detector
circuit... ... X ...
DF067 638Damper control circuit ...
CC.0OC / CC.1 /
1.DEF...
DF069 1620Impact detected signal X
DF070 830Clutch switch circuit ... ... 1.DEF/2.DEF ...

13B-45
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF015
PRESENT
OR
STOREDMAIN RELAY control CIRCUIT
1.DEF : relay cut out too soon
2.DEF : relay cut out too late
NOTESConditions for applying the fault finding procedure to a stored fault:
Only deal with this fault if it is stored.
Special notes:
The main relay is integrated into the UPC.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
Check the Protection and Switching Unit connections.
Check the injection computer connections.
Repair if necessary.
Check the condition of the battery terminals making sure they are correctly tightened.
Repair if necessary.
Check for continuity and the absence of interference resistance on the following
connection:
Injection computer connector B,
brown 48-track track E1 Track D2 UPC brown connector D.
Repair if necessary.
IMPORTANT!If the fault is still present and remains present, refer to the Protection and Switching Unit
Technical Note.
WARNING
If the UPC no longer detects the injection computer frames then GMV 1 will be
started until the battery has been completely discharged.
In the event that engine cooling fan 1 is not working, GMV 2 will be supplied.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF015/EDC16_V48_DF015/EDC16_V4C_DF015

13B-47
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF017
CONTINUED
CC.0
CO
NOTESSpecial notes:
If the pre-postheating unit has a short circuit to earth there is
a risk that the heater plugs will be operated continuously.
The heater plugs and the engine may be damaged.
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of the F2 (70A) supply fuse on the power supply fuse board.
Check the continuity and insulation against earth of the following connection:
Injection computer grey 32-track connector C, track A4 Track 3 preheating unit
Injection computer grey 32-track connector C, track E2 Track 8 preheating unit
Repair if necessary.
If the fault is still present, replace the pre-postheating unit.
1.DEF
NOTESNone.
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of the F2 (70A) supply fuse on the power supply fuse board.
Check for continuity and the absence of interference resistance on the following connection:
Injection computer grey 32-track connector C, track E2 Track 8 preheating unit
Repair if necessary.
If the fault is still present, check that the computer output is working correctly.
with the pre-postheating unit connected:
– connect the negative terminal of the voltmeter to track 8 of the preheating unit,
– connect the positive terminal of the voltmeter to the + 12 V battery,
– run command AC001 Pre-postheating unit.
If the voltmeter does not indicate the battery voltage while the command is running (ten one-second ON/OFF
cycles), contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.

13B-48
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF025
PRESENT
OR
STOREDPRE-POSTHEATING UNIT DIAGNOSTIC LINE
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after several attempts to start the engine, or following
actuator command AC001 Preheating unit.
Special notes:
It is difficult or even impossible to start the engine when cold.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
Check the pre-postheating unit connections.
Check the connections on all the heater plugs.
Repair if necessary.
Check the resistance of the heater plugs:
Replace any plug whose resistance is not below 2Ω at + 20°C.
Check the continuity and absence of interference resistance of the following connections:
– Preheating unit track 1 Heater plug of cylinder 3
– Preheating unit track 2 Heater plug of cylinder 4
– Preheating unit track 6Heater plug of cylinder 1
– Preheating unit track 7 Heater plug of cylinder 2
Check for the presence of +12V battery on track 3 of the preheating relay (via maxi fuse).
Check the engine earthing.
If the fault is still present,
Check the injection computer connections.
Check for continuity and the absence of interference resistance on the following connection:
Injection computer, grey 32-track connector C, track A4 Track 9 preheating unit connector
If the fault is still present, replace the pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF025/EDC16_V48_DF025/EDC16_V4C_DF025

DIESEL INJECTION
Fault finding - Interpretation of faults13B
13B-51V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF038
CONTINUED
10.DEF
NOTESIf there are a number of faults, deal with the other system
faults first.
NODisplay the stored context for fault DF038.
PR142 Computer fault = 10YES
Contact the Techline
NOParameters of main screen PR071 Computer
supply voltage > 10 V.YES
NOContexts stored for DF038
PR071 Computer supply voltage > 10 V.
YES
– Check the condition of the wiring harness
between the computer and the battery, carry
out the necessary repairs.
– Start the vehicle.
– Clear the stored faults.
– Check the faults:
– If DF038 is absent, end of fault finding.
– If DF038 is present, contact the Techline.
– Check the charge circuit and carry out the
necessary repairs:
– Check the condition of the battery terminals,
– Carry out fault finding on the alternator.
Recharge or replace the battery.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.