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

13B-7V12 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
5. FAULT FINDING LOG
You will always be asked for this log:
• when requesting technical assistance from the Techline,
• when requesting approval before replacing parts for which approval is compulsory,
• 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 INSTRUCTIONS
Safety rules must be observed during any work on a component to prevent any material damage or personal injury:
– check the battery voltage to avoid incorrect operation of computer functions,
– use the proper tools.IMPORTANTIMPORTANT
All faults involving a complex system call for thorough diagnostics with the appropriate tools.
The FAULT FINDING LOG, which should be completed during the fault finding procedure,
ensures a record is kept of the procedure carried out. It is an essential document when
consulting the manufacturer.
IT IS THEREFORE ESSENTIAL THAT THE FAULT FINDING LOG IS FILLED OUT EVERY TIME IT IS
REQUESTED BY TECHLINE OR THE WARRANTY RETURNS DEPARTMENT.

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-18V12 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
VI - Pre-postheating actuation
Pre/postheating control involves actuating the heater plugs and the preheating indicator light on the instrument
panel (multiplex signal).
The heater plugs are actuated by a static relay.
After the ignition is switched on, a preheating delay is activated. The length of time that the warning light is lit
depends on the coolant temperature, air temperature, atmospheric pressure and battery voltage. When the coolant
temperature is below a certain threshold, a postheating function can be used to improve the combustion stability,
and consequently engine operation (reducing unburnt particles and pollutant emissions). Postheating can last up
to5 minutes.
IMPORTANT:
There are two types of heater plug: SLOW and FAST:
SLOW plugs are identified by a black ring.
FAST plugs are identified by a white ring.
The heater plugs fitted on the vehicle must be replaced with plugs of the same type; otherwise there is
a risk of the heater plugs deteriorating which could lead to engine destruction.
Only Vdiag 20, 24, 38 and 74:
when replacing heater plugs with plugs which differ from those currently fitted on the vehicle (replacement of
SLOW plugs with FAST plugs), the computer must be configured (see Replacement of components, Replacing
heater plugs) by running command SC036 Reinitialise programming and selecting Heater plugs if this choice
is available, then following the procedure.

13B-28V12 MR-372-J84-13B300$060.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 faultAssociated
DTCDiagnostic tool title
DF001115 Coolant temperature sensor circuit
DF002110 Air temperature sensor circuit
DF004235 Turbocharging pressure sensor circuit
DF007190 Rail pressure sensor circuit
DF011641 Sensor supply voltage no. 1
DF012651 Sensor supply voltage no. 2
DF013697 Sensor supply voltage no. 3
DF017670 Preheating unit control circuit
DF018480 Low speed fan assembly control circuit (except Vdiag 58, 5C)
DF019481 High speed fan assembly control circuit (except Vdiag 58, 5C)
DF025380 Pre-postheating unit diagnostic line
DF026201 Cylinder 1 injector control circuit
DF027202 Cylinder 2 injector control circuit
DF028203 Cylinder 3 injector control circuit
DF029204 Cylinder 4 injector control circuit
DF0321641 Thermoplunger 1 relay control circuit
DF0331642 Thermoplunger 2 relay control circuit
DF0341643 Thermoplunger 3 relay control circuit
DF038606 Computer
DF046560 Battery voltage
DF0472505 Computer feed voltage
DF051575 Cruise control/speed limiterfunction
DF052200 Injector control circuit
DF05445 Turbocharging solenoid valve control circuit
DF056100 Air flow sensor circuit
DF059301 Misfiring on cylinder 1
DF060302 Misfiring on cylinder 2
DF061303 Misfiring on cylinder 3
DF062304 Misfiring on cylinder 4
DF065300 Combustion misfire
DIESEL INJECTION
Fault finding – Fault summary table

13B-31
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$071.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
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESPriorities when dealing with a number of faults:
– DF046 Battery voltage.
Conditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
If the fault is present:
– the thermoplungers are no longer controlled,
– the coolant temperature: PR064 Coolant temperature is fixed at 119°C (with the
engine running),
– the preheating phase lasts longer than 4 seconds,
– the low-speed fan assembly is continuously supplied,
– the high speed fan assembly is continuously supplied (for Vdiag 20, 24, 58, 5C, 26,
28, 60, 62),
– smoke may be emitted from the exhaust,
– noise may be heard when hot starting.
The level 1 warning light is illuminated.
The EOBD (European On Board Diagnostic) warning light is lit (for Vdiag 20, 24, 58,
5C, 26, 28, 60, 62)
Use bornier Elé.1681 for any operations on the computer connectors.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF001 / EDC16CP33_V1C_DF001 / EDC16CP33_V54_DF001 / EDC16CP33_V20_DF001 / EDC16CP33_V58_DF001 /
EDC16CP33_V5C_DF001 / EDC16CP33_V24_DF001 / EDC16CP33_V04_DF001 / EDC16CP33_V08_DF001 / EDC16CP33_V44_DF001 /
EDC16CP33_V4C_DF001 / EDC16CP33_V34_DF001 / EDC16CP33_V38_DF001 / EDC16CP33_V74_DF001 / EDC16CP33_V28_DF001 /
EDC16CP33_V62_DF001/ EDC16CP33_V26_DF001 / EDC16CP33_V60_DF001
DIESEL INJECTION
Fault finding – Interpretation of faults

13B-34
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$071.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
DF002
PRESENT
OR
STOREDAIR TEMPERATURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESPriorities when dealing with a number of faults:
– DF046 Battery voltage.
Conditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
If the fault is present:
–The EOBD (European On Board Diagnostic) warning light is lit.
– the thermoplungers are inhibited,
– the inlet air temperature is in defect mode, PR059 Inlet air temperature = 20°C (with
the engine running).
The air temperature sensor is integrated into the air flowmeter.
Use bornier Elé. 1681 for all operations on the engine management computer
connectors.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF002 / EDC16CP33_V1C_DF002 / EDC16CP33_V54_DF002 / EDC16CP33_V20_DF002 / EDC16CP33_V58_DF002 /
EDC16CP33_V5C_DF002 / EDC16CP33_V24_DF002 / EDC16CP33_V04_DF002 / EDC16CP33_V08_DF002 / EDC16CP33_V44_DF002 /
EDC16CP33_V4C_DF002 / EDC16CP33_V34_DF002 / EDC16CP33_V38_DF002 / EDC16CP33_V74_DF002 / EDC16CP33_V28_DF002 /
EDC16CP33_V62_DF002/ EDC16CP33_V26_DF002 / EDC16CP33_V60_DF002

13B-37
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$071.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
DF004
PRESENT
OR
STOREDTURBOCHARGING PRESSURE SENSOR CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF:Consistency between turbocharging pressure and atmospheric pressure.
NOTESPriorities when dealing with a number of faults:
– DF011 Sensor supply voltage no. 1.
– DF046 Battery voltage.
Conditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
Use bornier Elé.1681 for any operations on the injection computer connectors.
If the fault is present:
– engine torque limited,
– turbocharging pressure is in defect mode, PR041 Turbocharging pressure = 0.75
bar,
–the level 1 and EOBD (European On Board Diagnostic) warning lights are lit.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF004 / EDC16CP33_V1C_DF004 / EDC16CP33_V54_DF004 / EDC16CP33_V20_DF004 / EDC16CP33_V58_DF004 /
EDC16CP33_V5C_DF004 / EDC16CP33_V24_DF004 / EDC16CP33_V04_DF004 / EDC16CP33_V08_DF004 / EDC16CP33_V44_DF004 /
EDC16CP33_V4C_DF004 / EDC16CP33_V34_DF004 / EDC16CP33_V38_DF004 / EDC16CP33_V74_DF004 / EDC16CP33_V28_DF004 /
EDC16CP33_V62_DF004/ EDC16CP33_V26_DF004 / EDC16CP33_V60_DF004

13B-56
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$071.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
DF017
CONTINUED 1
Check the continuity of the following connection:
•3FF between components 120 and 257.
Check the + 12 V battery supply to the preheating unit on the following connection:
•BP35 of component 257.
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.
If the fault is still present, replace the pre-postheating unit.
CC.1
NOTESNone.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
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.
Measure the resistance between connections 3FF and BP35 of component 257.
If the resistance is less than 1 kΩ, replace the preheating unit.
Check the insulation in relation to +12 V of the following connection:
•3FF between components 120 and 257.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, replace the pre-postheating unit.

13B-57
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$071.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
DF017
CONTINUED 2
CC.0NOTESNone.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
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.
Measure the resistance between connections 3FF and BP35 of component 257.
If the resistance is less than 450Ω, replace the preheating unit.
Check the insulation to earth of the following connection:
•3FF between components 120 and 257.
Check the + 12 V battery supply to the preheating unit:
•BP35 of component 257,
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.
If the fault is still present, replace the pre-postheating unit.

13B-58
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$071.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
DF017
CONTINUED 3
1.DEFNOTESSpecial notes:
This fault occurs if the computer's control section overheats
when command AC037 Preheating relay is run or during
normal operation of the preheating unit.
Check the condition of the preheating unit connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 257).
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 the continuity and absence of interference resistance on the following connection:
•3FF between components120 and 257.
Check the + 12 V battery supply to the preheating unit:
•BP35 of component 257.
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.
If the fault is still present, contact the Techline.