2009 RENAULT SCENIC fuse

62C - 4
MANUAL AIR CONDITIONING
Fault finding – Introduction62C
V2 MR-372-J84-62C000$010.mif
4. FAULT FINDING PROCEDURE
Check the battery charge and
condition of the fuses
Print the system fault finding log
(available in CLIP or in the
Workshop Repair Manual or
Technical Note)
Connect CLIP
Dialogue with
computer?
Read faults
Faults present
Deal with faults found
Deal with stored faults
The symptom
persists
Refer to fault finding chart 1
(Section 62A)
Conformity check
The symptom
persists
Use fault finding charts
The symptom
persists
Contact Techline with the
completed fault finding log
no
yes
no
yes
no
yesno
no
Fault
resolvedFault
resolved
Fault
resolved

62C - 6
MANUAL AIR CONDITIONING
62C
V2 MR-372-J84-62C000$020.mif
MANUAL AIR CONDITIONING
Fault finding – System operation and track allocation
System operation
The manual heating and ventilation system does not have a computer. It consists solely of a control panel from which
the compressor (controlled by the Protection and Switching Unit and injection), the passenger compartment heating
resistors (controlled by the UCH with permission from the Protection and Switching Unit and injection) and rear de-
icer (managed by the Protection and Switching Unit) are started as explained in the synopsis of heating and
ventilation system operation in Section 62A.
The panel, by means of cables, also controls the air distribution flaps, air distribution and recycling, as well as fan
assembly speed through a connecting wire and resistor unit.
Manual heating and ventilation system control panel track allocation
Control panel
track Allocation Sensor or actuator track
A1 Earth
A2 Passenger compartment ventilation control
speed 1Resistor unit connector A track 1
A3 Passenger compartment ventilation control
speed 2Resistor unit connector A track 2
A4 Passenger compartment ventilation control
speed 3Resistor unit connector A track 3
A5 Passenger compartment ventilation control
speed 4Resistor unit connector A track 4
A6 Not used
B1 Passenger compartment ventilation speed 0
signal UCH
B2 + 12 V side lights Protection and Switching Unit
B3 Rear screen de-icer operation request UCH
B4 Rear screen de-icing control indicator light UCH
B5 Earth
B6 Air conditioning control indicator light UCH
B7 Air conditioning operation request UCH
B8 +12 V accessories Fuse and Relay box
B9 Not used

62C-17
MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
V2 MR-372-J84-62C000$040.mif
ALP 5 No passenger compartment ventilation
NOTESNone.
Check that the fusesare in good condition.
Make sure that the air circuit (cabin filter, scuttle panel grille, air vents and extractors etc.) is not blocked.
Ensure that the passenger compartment blower is in good condition.
Repair, clean or change the cabin filter if necessary.
Ensure that the passenger compartment fan unit is properly sealed.
Repair if necessary.
Check that the air recirculation flap does not remain closed when in the recirculation position.
Repair if necessary.
Does the fault disappear when the air
distribution is changed?
NO
Ensure that there is + 12 V accessories supply on track B1 of the resistor unit and an earth on track A1 of the
control panel connector.
Repair if necessary.
Ensure that all the air vents are open.
If the fault is still present, see ALP 2.
YES
AFTER REPAIRCheck that the system is operating correctly.

MANUAL AIR CONDITIONING
Fault finding – Fault Finding Chart62C
62C-21V2 MR-372-J84-62C000$040.mif
ALP 13 No control panel lighting
NOTESNone.
Check that the fuses are in good condition.
Repair if necessary.
Check that the bulbs are sound.
Repair if necessary.
Check for the presence of an earth on track B5 and track A1 of the control panel.
Repair if necessary.
With the side lights switched on, ensure that there is + 12 V side light supply on track B2 of the control panel.
Repair if necessary.
If the fault persists, contact your Technline
AFTER REPAIRCheck that the system is operating correctly.