2009 RENAULT TWINGO RS window

62B-75
MR-413-X44-62B000$828_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Diagnostic - Fault finding chart62B
ALP 4 Inefficient windscreen demisting
NOTESOnly consult this customer complaint after a complete check with the diagnostic
tool.
Special notes:
Check that the inside of the windows are not greasy, as this lowers the efficiency of
the demister.
Use the diagnostic tool to check that the computer is correctly configured by reading the LC046
GEOGRAPHICAL ZONE configuration. If necessary, reconfigure the computer (CF024 GEOGRAPHICAL
ZONE) and check that the windscreen demisting operates correctly.
Check that the air extraction vents are not blocked.
Repair if necessary.
Is the fault still present?
YES
Check that there is no water leakage in the
passenger compartment which would significantly
increase the humidity and reduce the efficiency of
the demisting. Repair if necessary (see ALP12
Water in the passenger compartment).
Is the fault still present?
YES
Check that the compressor operates correctly by switching on the air conditioning (press the “AC” button).
Repair if necessary (see ALP8 NO COLD AIR).
Check that the condensation (water from the evaporator) evacuation ring is not obstructed (under the vehicle).
Repair if necessary.
NO
End of fault finding procedure.
NO End of fault finding procedure.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
CLIM_V44_ALP4

62B-77
MR-413-X44-62B000$828_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Diagnostic - Fault finding chart62B
ALP 5 No passenger compartment ventilation
NOTESOnly consult this customer complaint after a complete check with the diagnostic
tool.
Special notes:
The intermediate connector is located on the distribution-ventilation unit and the
passenger compartment blower unit control module is located slightly higher up,
below the heater matrix pipes.
Use the W iring Diagram Technical Note for the New Twingo.
Using the diagnostic tool, check that the passenger compartment
blower control setting given by the computer varies from 0 to 100 % by
checking parameter PR019 PASSENGER COMPARTMENT BLOWER
PWM SETTING (refer to the interpretation of this parameter).
Does the value vary?
Check that the control voltage (PWM) from the passenger compartment blower power module varies between 0
and 12 V (from 0 to 100 %) by measuring this voltage between connection 38LR of component 1023 and earth
MAN (connector disconnected).
Does the voltage vary correctly?
NOYES
Check the insulation and continuity of connection 38LR between components 419
and 1023.
If the connection is faulty (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for the repair), repair the wiring, otherwise replace the wiring.
Before ignition feed, check for + 12 V accessories feed on connection SP3 of
component 1023 in relation to the chassis earth.
●Check the continuity of connection MAN between the intermediate connector and
component 1023.
●Check the continuity of connection MAN between the intermediate connector and
the chassis earth.
If the connection is faulty (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for the repair), repair the wiring, otherwise replace the wiring.
If there is no +12 V accessories feed, check the condition and position of fuse F28 (30A)
in the passenger compartment fuse box. Consult section 81C Fuses.
If the checks do not reveal any faults, carry out conformity check on component 1016
and component 1428 if the vehicle is fitted with electric windows.
NOContact the
Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
CLIM_V44_ALP5

62B-78
MR-413-X44-62B000$828_eng.mif
V1
CLIMATE CONTROL
Diagnostic - Fault finding chart

Vdiag No.: 44
62B
ALP 5
CONTINUED
Check the insulation and continuity of the following connections between component 1023 and the
intermediate connector:
●connection SP3
●connection MAN
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
Check the insulation and continuity of the following connections between component 1023 and 1156:
●connection 38DB
●connection 38DA
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
–Check the insulation and continuity of connection SP3 between component 1428 and the intermediate
connector if the vehicle is fitted with front electric windows.
–Check the insulation and continuity of connection SP3 between component 1016 and the intermediate
connector if the vehicle is fitted with front manual windows.
If the connection or connections are faulty (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
If the checks do not reveal any faults, carry out conformity check on component 1016 and component 1428 if the
vehicle is fitted with electric windows.
Check that the passenger compartment blower blade is not broken or separated from its shaft (see MR 412
Bodywork, 57A Interior equipment, Passenger compartment blower: Removal - refitting).
Replace the passenger compartment blower if necessary.
With the connector disconnected, measure the resistance value of the
passenger compartment blower motor:
Check the resistance (approximately 0.180 Ω of component 1156
between connections 38DB and 38DA.
If the connection or connections are faulty (see Technical Note 6015A,
Repairing electrical wiring, Wiring: Precautions for repair), repair
the wiring, otherwise replace the passenger compartment blower.
Replace the passenger compartment blower if the resistance is zero or
equal to infinity.
If the fault is still present, replace the power module.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

62B-89
MR-413-X44-62B000$920_eng.mif
V1
62B
CLIMATE CONTROL
Diagnostic - Fault finding chart
ALP 10 Inefficient rear screen de-icing/demisting
NOTESCarry out this conformity check after a full check using the diagnostic tool
(fault reading, especially UCH and injection faults and configuration checks).
Check that the fuses are sound.
Use a multimeter and a 21 W test light.
Use the Wiring Diagram Technical Note, NEW TWINGO.
Special notes:
Check that the inside of the windows are not greasy as this reduces the efficiency of
the de-icing.
Note:
The de-icing control is only authorised when the engine is running to save power.
The rear screen de-icer control is activated by pressing the de-icing button at the
bottom of the climate control panel in manual mode (with time delay and rear-view
mirror de-icer).
Ensure that there are no water leaks in the passenger compartment which would significantly increase the
moisture and reduce the effectiveness of the demisting function (see ALP 12 if the fault is noted).
Is the fault still present?
YES NO
Check that the UCH is correctly configured by viewing the configuration reading LC013 Type of air conditioning.
Reconfigure the UCH if necessary.
Check that the UCH receives the signal about the
status and operation of the engine. In the Cold Loop
screen, status ET142 "engine operating phase"
should display RUNNING.
Is status ET142 RUNNING?
YES
End of fault finding procedure.
NOCarry out fault finding on the UCH
(interpretation of status ET142) and on the
multiplex network.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

Vdiag No.: 44
MR-413-X44-62B000$920_eng.mif

62B-90
MR-413-X44-62B000$920_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Diagnostic - Fault finding chart62B
ALP 10
CONTINUED
Press the de-icing button on the control panel and
check status:
–ET086 heated rear screen for climate control.
Is status ET086 “ACTIVE”?
YES
Connect a test light between connections 15LP and
MYH of component 200 and, using the diagnostic
tool, run command AC060 Rear screen de-icer
(UCH command mode menu).
Does the test light illuminate?
YES
Connect a test light between connection 15LP and
the chassis earth and use the diagnostic tool to
run command AC060 Rear screen de-icer
(UCH command mode menu).
Does the test light illuminate?
NO
Check the continuity of connection 15LP between
components 200 and 645.
Is the continuity correct?
YES
See 87B, UCH, Interpretation of commands, for command AC060 Rear screen de-icer.
NORear de-icing request interpretation fault
on the climate control computer. Carry out
fault finding on the climate control
computer (see Interpretation of
statuses).
NOCheck the resistance of the rear screen
de-icer lines. The line resistance must not
be zero or infinite. If the resistance is not
correct, replace the rear screen (see MR
412, Bodywork, 54A, Windows, Rear
screen window: Removal - Refitting).
YESContinuity fault on connection MYH of
component 200. If there is a repair method
(see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions
for repair), repair the wiring, otherwise
replace the wiring.
NOContinuity fault on connection 15LP
between components 200 and 645.
If there is a repair method (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair
the wiring, if not replace the wiring.
AFTER REPAIRCarry out a complete check with the diagnostic tool.