2009 RENAULT SCENIC air condition

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 174V3 MR-372-J84-13B250$630.mif
NO
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET004
AC AUTHORISED
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
YES
The air conditioning authorisation only changes to YES if:
–the air conditioning request has been made by the driver (air conditioning switch in
AC or AUTO position with minimum ventilation),
–the engine is not under full load,
–the air conditioning system is not faulty.
Status ET004 remains at NO under the following conditions:
–Vehicle stopped with the ignition on,
–faults present in the air conditioning circuit,
–no air conditioning request made by the driver,
–engine under full load.
If status ET004 remains NO then the air conditioning should be authorised; check:
–that the air conditioning compressor is activated correctly,
–the air conditioning system supply fuses,
–the presence of refrigerant in the air conditioning circuit,
–that the refrigerant fluid pressure value is consistent at idle speed.
If the fault is still present, check the climate control computer faults (see 62C, Air
conditioning).
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET004

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 176V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET014
CHECK COOLING FAN 1
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Status ET014 test and status ET022 GMV1 low speed request change their status at the same time.
RUNNING
The low-speed engine fan unit is supplied in three scenarios:
–the engine coolant temperature is above 89 ˚C;
–the air conditioning is operating
–the injection computer has system faults that could lead to the engine overheating.
When the low-speed engine fan is supplied:
–status ET014 GMV 1 test becomes RUNNING status ET022 Low speed GMV
request becomes ACTIVE.
If the low speed GMV does not work (see 87G, engine compartment connection unit).
The low-speed engine fan assembly stops when:
–the engine coolant temperature is below 89 ˚C;
–the air conditioning is not switched on by the driver.
STOPPED
IMPORTANTWARNING
If the UPC does not detect the injection computer frames, the low speed engine
fan is supplied until the battery is completely discharged.
In the event that the low-speed engine fan assembly is faulty, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET014

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 179V3 MR-372-J84-13B250$630.mif
INACTIVE
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET022
LOW SPEED GMV CONTROL
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Status ET022 Low speed GMV request and status ET014 GMV 1 test change their status at the same time.
ACTIVE
The injection computer requests the activation of the low speed GMV when:
–the engine coolant temperature is above 89 ˚C;
–the injection computer has system faults that could lead to the engine overheating,
–the air conditioning is switched on by the driver.
When the high speed fan is supplied:
–status ET022 Low speed GMV request becomes ACTIVE and status ET014 GMV
1 test becomes RUNNING.
The low-speed engine fan assembly stops when:
–the engine coolant temperature is below 89 ˚C;
–no fault which could cause engine overheating is present in the injection
system.
–the air conditioning is not switched on by the driver.
IMPORTANTWARNING
If the UPC does not detect the injection computer frames, the low speed engine
fan is supplied until the battery is completely discharged.
In the event that the low-speed engine fan assembly is faulty, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET022

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 186V3 MR-372-J84-13B250$630.mif
NO
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET077
IMPACT DETECTED
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
YES
If the vehicle has been involved in an accident, the injection computer receives the
impact signal via the multiplex network and may switch off the ignition. Status ET077 is
YES.
Switch off the ignition for 1 minute then switch on the ignition again so the engine can be
started.
Carry out a multiplex network test and deal with any faults.
Under normal operating conditions, status ET077 is NO when the computer has received
no impact signal.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET077

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 187V3 MR-372-J84-13B250$630.mif
INACTIVE
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET088
REQUEST TO START COMPRESSOR
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
ACTIVE
Status ET088 becomes ACTIVE if there has been a request for air conditioning (press
the AC or AUTO button, with maximum cold) and if status ET004 is YES.
The selection is made on the air conditioning control panel, the request for air
conditioning is transmitted to the UCH which in turn transmits the request to the injection
computer which either authorises or does not authorise the compressor to switch on. If
the injection computer authorises the compressor to switch on, its sends the
compressor on request to the UPC and status ET088 COMPRESSOR ON REQUEST
becomes ACTIVE (Climate control).
If the vehicle is equipped with manual air conditioning, the air conditioning request is
transmitted from the air conditioning control panel to the UCH which then accepts or does
not accept the air conditioning compressor coming on depending on the operating status
of the passenger compartment fan. When the request has been accepted, the request
to switch on the compressor is transmitted to the injection computer which either
authorises or does not authorise the compressor to start.
If the injection computer authorises the compressor to switch on, its sends the
compressor on request to the UPC and status ET088 COMPRESSOR ON REQUEST
becomes ACTIVE.
If there has been no compressor on request and status ET088 remains ACTIVE
(see 62A, Air conditioning).
Note:
Switching on the compressor is only authorised when the engine is running.
Switching on the compressor is ultimately controlled the UPC.
Status ET088 is INACTIVE when there has been no air conditioning request and
when the compressor has not been authorised to come on (ET004 is NO or when
the driver turns off the air conditioning).
If there has been no compressor on request and status ET088 remains INACTIVE (see
62A, Air conditioning).
Note:
Switching on the compressor is only authorised when the engine is running.
Switching on the compressor is ultimately controlled the UPC.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET088

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 193V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
- Check the condition and fitting of the clutch switch.
Check the continuity on the connection between track 1 of the clutch switch connector and track C4 of the black
32-track connector A of the injection computer.
Check for earth on track 2 of the clutch switch connector.
Repair if necessary.
- Remove the clutch switch and test its operation:
- Replace the switch if necessary.
- Check the condition and fitting of the clutch switch.
- Remove the clutch switch and test its operation:
- Replace the switch if necessary.
Check the earth insulation of the connection between track 1 of the clutch switch connector and track C4 of the
black 32-track connector A of the injection computer and repair if necessary. ET405
CLUTCH PEDAL SWITCH
NOTESSpecial notes:
Only apply the checks if the INACTIVE and ACTIVE statuses are not consistent with
the pedal position.
STATUS INACTIVE with clutch pedal depressed.
Continuity between tracks Insulation between tracks
Switch pressed
(Clutch pedal released)1 and 2
Switch released
(Clutch pedal depressed)1 and 2
STATUS ACTIVE with clutch pedal released.
Continuity between tracks Insulation between tracks
Switch pressed
(Clutch pedal released)1 and 2
Switch released
(Clutch pedal depressed)1 and 2
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16_V51_ET405

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 202V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET703
CRUISE CONTROL/SPEED LIMITER BUTTONS
NOTESSpecial notes:
Carry out these checks if the statuses do not correspond with system operation
programming.
INACTIVEStatus 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.
INCREASEStatus 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 PLUS, check the condition of the cruise control/speed
limiter “+/-” button, and the condition of its connector. Repair if necessary.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see MR 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connections while pressing the + button
(on the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 300 Ω, check the continuity of the connection when
the button is in the rest position.
If there is continuity, replace the +/- control button.
If there is a repair method (See Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic tool
EDC16_V51_ET703

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 203V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET703
(CONTINUED 1)
DECREASEStatus ET703 becomes MINUS 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 change to MINUS, check the condition of the cruise control/
speed limiter “+/-” button, and the condition of its connector. Repair if necessary.
To carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connection whilst pressing the - button (on
the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 100 Ω, check the continuity of the connection when
the button is in the rest position.
If there is continuity, replace the +/- control button.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring
SUSPENDStatus 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 carry out these checks and measurements in complete safety, observe the
recommendations for removing the driver's front airbag (see 364 (Mégane) or 370
(Scénic), Mechanical, 88C, Airbag and seat belt pretensioners, Driver's front
airbag, Removal - Refitting).
Measure the resistance of the following connection whilst pressing the 0 button
(on the button tracks):
●Connection code 86G, of component 331.
●Connection code 86M of component 331.
If the resistance is not approximately 0Ω, 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 the wiring.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.