2012 RENAULT SCENIC airbag

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-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-282V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET077IMPACT DETECTED
STATUS
DEFINITIONNO: This status indicates that the airbag computer has not detected an impact.
YES: This status indicates that the airbag computer has detected an impact.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
This signal is transmitted by the airbag computer via the multiplex network.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
"NO"The status is usually NO as no impact has been detected.
Otherwise, check the airbag computer (see88C, Airbags and pretensioners).
"YES"If YES an impact must be present.
Otherwise, check the airbag computer (see88C, Airbags and pretensioners).
After the repair, clear the faults (even if no fault is displayed).
EDC16CP33_V18_ET077 / EDC16CP33_V1C_ET077 / EDC16CP33_V54_ET077 / EDC16CP33_V20_ET077 / EDC16CP33_V58_ET077 /
EDC16CP33_V5C_ET077 / EDC16CP33_V24_ET077 / EDC16CP33_V04_ET077 / EDC16CP33_V08_ET077 / EDC16CP33_V44_ET077 /
EDC16CP33_V4C_ET077 / EDC16CP33_V34_ET077 / EDC16CP33_V38_ET077 / EDC16CP33_V74_ET077 / EDC16CP33_V28_ET077 /
EDC16CP33_V62_ET077 / EDC16CP33_V26_ET077 / EDC16CP33_V60_ET077
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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-311V12 MR-372-J84-13B300$102.mif
13B
ET703
CONTINUED 1
Sensor electrical conformity
"INACTIVE"Status ET703 becomes INACTIVE when none of the cruise control / speed limiter
buttons is pressed. These buttons are located on the steering wheel.
If status ET703 does not display INACTIVE,
– check the condition of the cruise control / speed limiter +/- button and the condition
of its connector,
– check the condition of the cruise control / speed limiter R/0 button and the condition
of its connector.
"PLUS"Status ET703 becomes PLUS when the cruise control / speed limiter + button is
pressed. This button is on the steering wheel, on the left-hand side.
If status ET703 does not display INCREASE, check the condition of the cruise
control/speed limiter +/- button and the condition of its connector. Repair if necessary.
To perform these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR Mechanical, 88C,
Airbag and pretensioners, Driver's front airbag: Removal - Refitting).
Measure the resistance of the following connections while pressing the + button
(on the button connections):
•86G of component 331,
•86M of component 331.
If the connection or connections are faulty and there is a repair procedure
(seeTechnical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the resistance is not approximately 300 Ω, check the continuity of the connection
when the button is not pressed.
If there is continuity, replace the +/- control button.
If the connection or connections are faulty and there is a repair procedure
(seeTechnical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
DIESEL INJECTION
Fault finding – Interpretation of statuses
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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-312V12 MR-372-J84-13B300$102.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET703
CONTINUED 2
"MINUS"
Status ET703 becomes DECREASE when the - button of the cruise control/speed
limiter is pressed. This button is on the steering wheel, on the left-hand side.
If status ET703 does not change to MINUS, check the condition of the cruise control/
speed limiter +/- button, and the condition of its connector. Repair if necessary.
To perform these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR Mechanical, 88C,
Airbag and pretensioners, Driver's front airbag: Removal - Refitting).
Measure the resistance of the following connections while pressing the - button
(on the button connections):
•86G of component 331,
•86M of component 331.
If the connection or connections are faulty and there is a repair procedure
(seeTechnical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the resistance is not approximately 100 Ω check the continuity of the connection
when the button is not pressed.
If there is continuity, replace the +/- control button.
If the connection or connections are faulty and there is a repair procedure
(seeTechnical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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-313V12 MR-372-J84-13B300$102.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET703
CONTINUED 3
"SUSPEND"
Status ET703 becomes SUSPEND when the cruise control / speed limiter 0 button is
pressed. This button is located on the steering wheel, to the right.
If status ET703 does not change to SUSPEND, check the condition of the cruise
control / speed limiter R/0 button, and the condition of its connector.
To perform these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR Mechanical, 88C,
Airbag and pretensioners, Driver's front airbag: Removal - Refitting).
Measure the resistance of the following connections while pressing the 0 button
(on the button connections):
•86G of component 331,
•86M of component 331.
If the connection or connections are faulty and there is a repair procedure
(seeTechnical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the resistance is not approximately 0 Ω, replace the R/0 control button.
If there is continuity, replace the R/0 control button.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-314V12 MR-372-J84-13B300$102.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET703
CONTINUED 4
"REACTIVATE"
Status ET703 becomes RESUME when the R button of the cruise control/speed
limiter is pressed. This button is located on the steering wheel, to the right.
If status ET703 does not change to RESUME, check the status of the cruise control/
speed limiter R/0 button, and the status of its connector. Repair if necessary.
To perform these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR Mechanical, 88C,
Airbag and pretensioners, Driver's front airbag: Removal - Refitting).
Measure the resistance of the following connections while pressing the R button
(on the button connections):
•86G of component 331,
•86M of component 331.
If the connection or connections are faulty and there is a repair procedure
(seeTechnical Note 6015A, Electrical wiring repair, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
If the resistance is not approximately 900 Ω, check the continuity of the connection
when the button is not pressed.
If there is continuity, replace the R/0 control button.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74