2010 RENAULT SCENIC check engine

AIR CONDITIONING
Fault finding - Fault Finding Chart62A
62A-56V4 MR-372-J84-62A000$080.mif
Manual air conditioning
and
Climate control
ALP 10 Inefficient rear screen de-icing or demisting
NOTESOnly refer to this customer complaint after a full check with the diagnostic tool (fault
readings, especially those of the Protection and Switching Unit, and configuration
checks).
Special notes:
–Check that the inside of the glass is not greasy as this lowers the de-icing efficiency.
N.B.: for electric power drain reasons, de-icing can only be activated when the
engine is running.
Rear screen de-icing can be activated in two ways:
–Pressing the de-icing button (at the bottom of the control panel) switches on the
heated rear screen in manual mode (with timer) and heated door mirrors.
–Pressing the de-icing button at the top of the control panel activates the "See clear"
function: heated rear screen in automatic mode (no timer) heated door mirrors, air
conditioning and high speed windscreen ventilation all switched on.
Check that there are no water leaks into the passenger compartment
which would significantly increase the humidity levels and reduce the
effectiveness of demisting. Repair if necessary (see ALP 12).
Is the fault still present?
YES
Check for earth on the right-hand side terminal of the heated rear screen.
Repair if necessary.
Use the diagnostic tool to run command AC011 Heated
rear screen (Protection and Switching Unit command
mode menu).
Is the 12 V feed present on the left-hand connector
of the heated rear screen?
NO
NO
YESEnd of fault finding
procedure.
If the 12 V feed and earth both arrive
correctly at the heated rear screen
terminals but the screen still does not
operate correctly: unclip the plastic
rear screen pillars and check that the
de-icing lines are not broken. The
resistance of the lines should be
neither zero nor infinity (average
0.5 Ω). Repair if necessary.
AFTER REPAIRPerform a complete check using the diagnostic tool.
CLIM X84 1.1
Edition 2

AIR CONDITIONING
Fault finding - Fault Finding Chart62A
62A-57V4 MR-372-J84-62A000$080.mif
Manual air conditioning
and
Climate control
ALP 10
CONTINUED 1
Use the fault finding procedure for command AC011
HEATED REAR SCREEN found in the Protection and
Switching Unit Technical Note.
Is the fault still present?
YES
Using the tables below, check the control panel button(s).
NOTE: With climate control systems, press the de-icing button at the top of the control panel for auto de-icing ("See
clear" function), and press the de-icing button at the bottom of the control panel for manual de-icing.
CLIMATE CONTROL
ENGINE STOPPED ENGINE RUNNING
No button
pressedAuto de-icing
pressedManual de-
icing pressedNo button
pressedAuto de-icing
pressedManual de-
icing pressed
ET085 Heated rear
screen: automatic modeINACTIVEACTIVEINACTIVE INACTIVEACTIVEINACTIVE
ET086 Heated rear
screen: manual modeINACTIVE INACTIVEACTIVEINACTIVE INACTIVEACTIVE
ET026 Heated rear
screen controlINACTIVE INACTIVE INACTIVE INACTIVEACTIVE ACTIVE
MANUAL AIR CONDITIONING
(and heater version without air
conditioning)
ENGINE STOPPED ENGINE RUNNING
No button
pressedDe-icing
pressedNo button
pressedDe-icing
pressed
ET026 Heated rear screen control INACTIVE INACTIVE INACTIVEACTIVE
ET028 Heated rear screen button RELEASED DEPRESSED RELEASED DEPRESSED
NO End of fault finding procedure.
AFTER REPAIRPerform a complete check using the diagnostic tool.
CLIM X84 1.1
Edition 2

62A-59
AIR CONDITIONING
Fault finding - Fault Finding Chart62A
V4 MR-372-J84-62A000$080.mif
Manual air conditioning
and
Climate control
ALP 14 Air conditioning noises during operation
NOTESOnly deal with this customer complaint after a full check with the diagnostic tool
(fault reading and configuration checks).
Check that the computers involved in the air conditioning function (Injection, Protection and
Switching Unit, UCH and Air conditioning control panel) are correctly configured.
Reconfigure if necessary (see Configurations and Configuration readings).
Check that:
–the compressor fitted to the vehicle corresponds correctly to the engine (see MR 370 Mechanical, 62A, Air
conditioning, Air conditioning: Parts and consumables for the repair).
Replace the compressor if necessary (see MR 370, Mechanical, 62A, Air conditioning, Compressor: Removal
- Refitting).
–the compressor is correctly fixed (see MR 370 Mechanical, 62A, Air conditioning, Compressor: Removal -
Refitting).
Check the condition of the compressor belt and check its tension. Replace the belt if necessary (see MR 370
Mechanical, 11A, Top and front of engine, Accessories belt: Removal - Refitting).
Check that the intermediate pipes, condenser and dehydrator reservoir are correctly fitted.
–Check the mountings and brackets of the components.
–Check the contact between and proximity of the components.
(see MR 370 Mechanical, 62A, Air conditioning, Air conditioning: List and location of components).
Check the correct operation of the cooling fan assembly or passenger compartment fan assembly and
condenser:
–check the electrical supply of the fan using parameters ET007 High speed fan assembly control, AC009 Low
speed fan assembly and AC010 High speed fan assembly (see Conformity check, Sub-function: Cold
loop).
Check the quantity of refrigerant (see MR 370 Mechanical, 62A, Air conditioning, Air conditioning: Parts and
consumables for the repair).
If the quantity of refrigerant is:
- Greater than the manufacturer's information, recharge according to the manufacturer's values (see MR 370
Mechanical, 62A, Air conditioning: Draining - Filling).
- Less than the manufacturer's information, check for leaks (see MR 370 Mechanical, 62A, Air conditioning,
Refrigerant circuit: Check).
If the fault is still present, replace the compressor (see MR 370, Mechanical, 62A, Air conditioning,
Compressor: Removal - Refitting).
AFTER REPAIRPerform a complete check using the diagnostic tool.
CLIM X84 1.1
Edition 2