2009 RENAULT SCENIC light

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

62B-50
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 5 No passenger compartment ventilation
NOTESOnly consult this customer complaint after a complete check using the
diagnostic tool.
Special notes:
The 2 x 5-track intermediate connector is located on the LH side of the distribution /
ventilation unit (behind a plastic cover) and the passenger compartment fan control
module is located slightly higher up, below the heater matrix pipes.
Check that the fusesare in good condition.
Using the diagnostic tool, check that the passenger compartment fan
control setting given by the computer varies from 0 to 100% by checking
parameter PR019 Passenger compartment fan PWM setpoint
(refer to the interpretation of this status).
Does the value vary?
YES
Check that the control voltage (PWM) (modulated control voltage) of the passenger
compartment fan power module varies between 5 and 12 V (from 0 to 100%) by
measuring between track 6 of the module's 6-track connector and earth
(connector connected).
Note:
The check procedure is given in the Help section.
Does the voltage vary correctly?
NO
Check the insulation, continuity and absence of interference resistance on the
following connection:
Air conditioning computer 18-track
connector
track 7
Repair if necessary.Power module 6-track connectortrack 6
With the ignition on, check for +12 V accessories feed on track B1 and an earth on track B5
of the black 2 x 5 track intermediate connector (screwed to the base of the console).
Repair if necessary.
NO
YES Contact your
TECHLINE.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2

62B-54
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 13 No control panel lighting
NOTESOnly refer to this customer complaint after a full check of the multiplex network
and the air conditioning with the fault finding tool.
Special notes:
With the ignition on, the control panel screen is permanently on but the panel buttons
only light up when the sidelights are switched on.
Note:
If the external temperature sensor is faulty, the climate control computer is
switched on 5 seconds after the ignition is switched on (this allows a fault to be
identified as fault finding cannot be performed on the external temperature sensor
by the UCH).
Is the fault common to other components (instrument panel,
multifunction display, electric window buttons, etc.)?
YES
Switch on the ignition and switch on the side lights to check
there is a 12 V supply on track 6 of the brown 12-track
connector (PPH2) of the Protection and Switching Unit.
Is there a 12 V supply?
YES
Check the connection and the condition of the connectors at the air conditioning control panel
output.
Repair if necessary.
Check the insulation, continuity and absence of interference resistance on the following
connection:
Air conditioning computer 12-track connector
track 9
Repair if necessary.Protection and Switching Unit brown 12-track
(PPH2) connector
track 6
NO
NOPerform fault finding on the
protection and switching unit.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2

62B-55
CLIMATE CONTROL
Fault finding – Fault Finding Chart62B
V3 MR-372-J84-62B000$110.mif
Vdiag No.: 44
ALP 13
CONTINUED
Using the diagnostic tool and the conformity
check in this document, check that the lighting
rheostat is working correctly using parameter
PR122 Night-time lighting level.
Does the parameter vary?
YES
Is the fault still present?
YES
Contact your TECHLINE.
NO
NO Use the diagnostic tool to check the
instrument panel (which is providing the 0 V
rheostat controlled information).
If fault DF037 "Instrument panel lighting
rheostat" is present: apply the associated fault
finding procedure (see corresponding
section).
If no faults are present or stored: run fault
finding on the multiplex network (the 0 V
rheostat controlled signal is reaching the air
conditioning control panel on the multiplex
network).
End of fault finding procedure.
AFTER REPAIRPerform a complete check using the diagnostic tool.
ACREG X84 1.1
Edition 2