lock RENAULT SCENIC 2009 J84 / 2.G Air Conditioning Climate Control Workshop Manual
[x] Cancel search | Manufacturer: RENAULT, Model Year: 2009, Model line: SCENIC, Model: RENAULT SCENIC 2009 J84 / 2.GPages: 60
Page 44 of 60
62B-44
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 2 Air distribution fault
NOTESOnly refer to this customer complaint after a complete check with the diagnostic tool
(no faults should be present or stored, especially fault DF012 Distribution motor circuit).
Special notes:
Adjusting the air distribution or ventilation controls switches off automatic climate
control mode.
Note:
The air distribution motor is located on the RH side of the distribution - ventilation unit,
above the footwell air duct.
Check that the air circuit (cabin filter, scuttle panel grille, air ducts and ventilation grilles, etc.) is not blocked.
Repair, clean or change the cabin filter if necessary.
Also check that there is no air flow fault: see ALP 3 Air flow fault.
Ensure that the blower unit is properly sealed. Also check that the air distribution ducts (right-hand and left-hand,
upper and lower) are correctly connected to the housing as well as the refrigeration pipe in the glove box (if the
customer complains about a feeling of cold air on the passenger's side).
Repair if necessary.
Switch the passenger compartment fan to maximum speed,
the temperature control to maximum hot or maximum cold,
and move the air distribution control.
Check that the air outlet is the one selected.
Note:
For information about the air flows according to user selection,
see the air distribution table shown in the interpretation of
parameter PR011 Distribution flap position.
Has the customer complaint been confirmed?
YES
Remove the distribution motor and check the condition of the
flap control (star-shaped mechanism).
Is the flap control damaged?
NO
NOThe air distribution is operating
correctly.
If necessary, explain how the
system works to the customer
again.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Replace the distribution -
ventilation unit.YES
Edition 2
Page 45 of 60
62B-45
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 2
CONTINUED
With the distribution motor removed, operate the distribution
flaps manually by turning the centre of the control from one limit
to the other (the limits are V shaped).
Does the flap cover the whole range of movement, without
any areas of resistance?
YES
Remove the footwell vent ducts (lower ducts) to check that the
lower flap control linkages are present and correctly fitted (they
are connected to the upper flaps). Also ensure that lower flaps
move when the distribution flap manual control is operated.
Do the footwell (lower) distribution flaps move when the
distribution flaps are controlled?
YES
If the fault is still present with the distribution motor dismantled
and connected, carry out a motor command using the distribution
buttons on the control panel: switch the distribution flap to
demisting position (value 100%) then switch the distribution
setting to air vent position (value 0%).
Is the distribution motor operating?
YES
Remove the dashboard and visually check that when the
distribution flaps are moved manually (by turning the centre of the
control), moving the control does in fact move the distribution
flaps.
Is there movement?
YES
End of fault finding procedure.
NO
NO
NO
NORemove the dashboard to check
that nothing is preventing the
flaps from moving. Repair
(remove any foreign bodies
which may be blocking the flaps
and grease the centre of the flap
control mechanism). Replace
the distribution - ventilation unit if
it is not possible to repair it.
If the mountings of the lower flap
control linkages are not
damaged: resecure the linkages
and grease them slightly. If a
repair is not possible or if the
mountings are damaged:
replace the distribution -
ventilation unit.
Apply the fault finding procedure
for fault DF012 Distribution
motor circuit.
Replace the distribution -
ventilation unit.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2
Page 46 of 60
62B-46
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 3 Air flow fault
NOTESOnly consult this customer complaint after a complete check using the diagnostic
tool.
Check that the customer knows how to work the air conditioning system properly.
Is the passenger compartment fan working?
YES
Check that the air circuit (cabin filter, scuttle panel grille, air ducts and ventilation grilles, etc.) is not blocked.
Ensure that the blower blades are in good condition.
Repair, clean or change the cabin filter if necessary.
With the cabin filter removed, put your
hand into the housing to ensure that the
evaporator is not obstructed and that
there is no ice.
Is the evaporator obstructed?
NO
Ensure that the blower unit is properly sealed. Also check that the air distribution ducts (right-hand and left-hand,
upper and lower) are correctly connected to the housing as well as the refrigeration pipe in the glove box (if the
customer complains about a feeling of cold air on the passenger's side).
Repair if necessary.
Check that the air recirculation flap does not remain closed when in the recirculation position. On the diagnostic
tool, status ET062 "Recirculation flap position" should display OPEN (the flap can be seen by removing the
windscreen frame).
Repair if necessary (apply the fault finding procedure for fault DF021 Recirculation motor circuit).
Does the fault disappear when the air distribution is
changed?
NO
NO
YES
YESRepair, see ALP 5
Remove the evaporator and clean if it is obstructed.
If there is ice on the evaporator, carry out a conformity
check of the temperature sensors (internal, external
and engine coolant temperatures). Depending on
vehicle equipment, check that the interior air
temperature sensor micro-turbine is working correctly
(if it is faulty it may cause the measurement to be
incorrect).
Replace any faulty components.
Ensure that all the air vents
are open.
If the fault is still present,
see ALP 2.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2
Page 48 of 60
62B-48
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 4 Inefficient windscreen demisting
NOTESOnly consult this customer complaint after a complete check using the diagnostic
tool.
Special notes:
Check that the inside of the windows are not greasy, as this lowers the efficiency
of the demister.
Check that the air extraction vents are not blocked.
Repair if necessary.
Is the fault still present?
YES
Ensure that there are no water leaks into the passenger
compartment which would significantly increase the humidity
and reduce the effectiveness of the demisting.
Repair if necessary (see ALP 12).
Is the fault still present?
YES
Check that the compressor is operating correctly by running command: AC008 Compressor command
(Protection and Switching Unit command mode) or by operating the air conditioning (press AC button).
Repair if necessary (see ALP 8 No cold air, in section 62A).
Check that the condensation drain ring (water from the evaporator) is not obstructed (underneath the body).
Repair if necessary.
Is it an air distribution fault?
NO
NO
NO
YESEnd of fault finding procedure.
End of fault finding procedure.
See ALP 2.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2
Page 52 of 60
62B-52
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 11 Unpleasant odours in the passenger compartment
NOTESOnly consult this customer complaint after a complete check using the
diagnostic tool.
Check that the cabin filter is not blocked or damaged.
Replace it if necessary.
Is the fault still present?
YES
Check that the condensation drain ring (water from the
evaporator) is not obstructed (under the body).
Repair if necessary.
Is the fault still present?
YES
Check the sealing of the heating unit in relation to the engine
compartment:
–Foam seal on the heater matrix coolant pipes fitted and in
good condition.
–Rubber seal on the radiator tank fitted and in good condition
(seal under the bonnet separating the engine compartment
from the windscreen aperture).
–Drain valve on the radiator tank fitted and in good condition.
Repair if necessary.
Is the fault still present?
YES
Remove the cabin filter to apply air conditioning system
cleaner using an extension pipe on the evaporator.
Spray the entire contents of the aerosol.
Leave the product to work for 15 minutes.
NO
NO
NOEnd of fault finding procedure.
End of fault finding procedure.
End of fault finding procedure.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2
Page 53 of 60
62B-53
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 12 Water is present in the passenger compartment
NOTESOnly consult this customer complaint after a complete check using the
diagnostic tool.
Pressurise the cooling circuit.
Is there any coolant leaking into the vehicle?
NO
Check that the evaporator drain ring is not blocked
(under the body).
Repair if necessary.
Is the fault still present?
YES
Check that the scuttle panel (under the windscreen frame) is not filled with water.
If it is, check that the drain valve is fitted to the scuttle panel and is in good condition.
Replace the valve if necessary.
Has the customer just washed the vehicle?
YES
Explain to the customer that when washing the car using a
hose pipe, the water jet must not be left for too long on the air
inlet in the scuttle panel (on the bonnet).
YES
NO
NORepair.
End of fault finding procedure.
End of fault finding procedure.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2