ignition RENAULT TWINGO RS 2009 2.G Heating And Air Conditioning - Climate Control User Guide

62B-33
MR-413-X44-62B000$460_eng.mif
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Vdiag No.: 44CLIMATE CONTROL
Fault finding - Conformity check62B
SUB-FUNCTION: PASSENGER COMPARTMENT VENTILATION (CONTINUED)
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine stopped with ignition on (12 V APC), CLIMATE
CONTROL OFF (air conditioning compressor not engaged).
FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
TemperaturesPR001: Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)In the event of a fault, see the
interpretation of this parameter.
PR002: External
temperatureX = exterior
temperature ± 5 ˚C
(invalid value: 215 ˚C)In the event of a fault, see the
interpretation of this parameter
Note:
This parameter is displayed via the
climate control computer but is
generated by the UCH.
Motor activationAC001:Passenger
compartment
blowerWhen this command is
run the passenger
compartment blower
comes on.In the event of a fault, refer to the
interpretation of this command.
AC002:Recirculation
motor: exterior airThis command is used to
actuate the air
recirculation motor to
check that it is working.In the event of a fault, refer to the
interpretation of this command.
AC003:Recirculation
motor:
recirculationThis command is used to
actuate the air
recirculation motor to
check that it is working.In the event of a fault, refer to the
interpretation of this command.
AC007:Distribution
motor: de-icingThis command is used to
activate the ventilation/
de-icing distribution flap
to check that it is working.In the event of a fault, refer to the
interpretation of this command.
AC006:Distribution
motor: air ventThis command is used to
activate the ventilation/
de-icing distribution flap
to check that it is working.In the event of a fault, refer to the
interpretation of this command.
AC004:Mixer motor:
maximum coldThis command is used to
activate the mixing flap to
check that it is working.In the event of a fault, refer to the
interpretation of this command.
AC005:Mixer motor:
maximum hotIn the event of a fault, refer to the
interpretation of this command.

62B-34
MR-413-X44-62B000$460_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Fault finding - Conformity check62B
COLD LOOP SUB-FUNCTION
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine stopped with ignition on (12 V APC), CLIMATE
CONTROL OFF (air conditioning compressor not engaged).
FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
Request to engage
the compressorET140:Air conditioning
requestINACTIVEIn the event of a fault, refer to the
interpretation of this status.
Passenger
compartment
blowerET141:Passenger
compartment
blowerRUNNING
or
STOPPED
After a user requestIn the event of a fault, refer to the
interpretation of this status.
CompressorET020:Compressor
controlINACTIVEIn the event of a fault, refer to the
interpretation of this status.
TemperaturesPR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)In the event of a fault, see the
interpretation of this
parameter.
PR002:External
temperatureX = exterior
temperature ± 5 ˚C
(invalid value: 215 ˚C)In the event of a fault, see the
interpretation of this
parameter
Note:
This parameter is displayed via
the climate control computer but
is generated by the UCH.
Air flapsPR012:Mixing flap
positionFrom 0 % (“Maximum
cold” position: 15 ˚C)
to 100 % (“Maximum
hot” position: 27 ˚C).In the event of a fault, see the
interpretation of this
parameter.

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MR-413-X44-62B000$460_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Fault finding - Conformity check62B
HEATING SUB-FUNCTION
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine stopped with ignition on (12 V APC), CLIMATE
CONTROL OFF (air conditioning compressor not engaged).
FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
Heated rear screenET086:Heated rear
screen: manual
modeINACTIVE In the event of a fault, refer to the
interpretation of this status.
ET085:Heated rear
screen:
automatic modeINACTIVE In the event of a fault, refer to the
interpretation of this status.
Passenger
compartment
ventilatorET141:Passenger
compartment
ventilatorRUNNING
or
STOPPED
After a user requestIn the event of a fault, refer to the
interpretation of this status.
Air mixing motorPR012:Mixing flap
positionFrom 0 % (“Maximum
cold” position: 15 ˚C)
to 100 % (“Maximum
hot” position: 27 ˚C).In the event of a fault, see the
interpretation of this
parameter.
HeatingPR045:Current heating
resistor power0 WIn the event of a fault, see the
interpretation of this
parameter.
TemperaturePR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)In the event of a fault, see the
interpretation of this
parameter.
PR002:External
temperatureX = exterior
temperature ± 5 ˚C
(invalid value: 215 ˚C)In the event of a fault, consult the
interpretation of this
parameter.
Note:
This parameter is displayed via
the climate control computer but
is generated by the UCH.
PR004:Coolant
temperatureX = engine coolant
temperature in ˚CIn the event of a fault, see the
interpretation of this
parameter.

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Vdiag No.: 44CLIMATE CONTROL
Fault finding - Conformity check62B
MAIN SCREEN
NOTESOnly carry out this conformity check after a full check using the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine stopped with ignition on (12 V APC), AIR
CONDITIONING OFF (air conditioning compressor not activated).
Note:
This page lists the statuses and parameters provided by the climate control computer
but which are not associated with the three sub-functions given in the conformity
check (PASSENGER COMPARTMENT VENTILATION, COLD LOOP and HEATING
sub-functions).
FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
Electrical suppliesPR092:Battery voltage10.5 V < X <14.4 VIn the event of a fault, see the
interpretation of this
parameter.
ET083:+ 12 V after
ignition present ABSENT: Ignition off.
PRESENT: Ignition on.In the event of a fault, refer to the
interpretation of this status.
ET002:+ 12 V side
lightsABSENT: Side lights off.
PRESENT: Side lights
on.In the event of a fault, refer to the
interpretation of this status.
PR122:Night lighting
level15 % = minimum
lighting level
99 % = maximum
lighting level
(side lights
off: 102 %)In the event of a fault, refer to the
interpretation of this status.
Note:
This parameter is displayed via
the climate control computer but
is generated by the instrument
panel.

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V1

Vdiag No.: 44CLIMATE CONTROL
Fault finding - Conformity check62B
MAIN SCREEN
NOTESOnly carry out this conformity check after a full check using the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine running, AIR CONDITIONING ON (air conditioning
compressor activated).
This page lists the statuses and parameters provided by the climate control computer
but which are not associated with the three sub-functions given in the conformity
check (PASSENGER COMPARTMENT VENTILATION, COLD LOOP and HEATING
sub-functions).
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Electrical
suppliesPR092:Battery voltage10.5 V < X <14.4 VIn the event of a fault, see
the interpretation of this
parameter.
ET083:+ 12 V after
ignition present PRESENT:
Ignition on.In the event of a fault, refer
to the interpretation of this
status.
ET002:+ 12 V side
lightsABSENT: Side lights off.
PRESENT: Side lights
on.In the event of a fault, refer
to the interpretation of this
status.
PR122:Night lighting
levelBetween 15 % (minimum
lighting level) and 99 %
(maximum lighting level)
(side lights off: 102 %)In the event of a fault,
consult the interpretation
of this parameter
Note:
This parameter is displayed
by the climate control
computer but is generated
by the instrument panel.

62B-42
MR-413-X44-62B000$506_eng.mif
V1
62B
CLIMATE CONTROL
Fault finding - Status summary table
Tool status Diagnostic tool title
ET002+ 12 V side lights
ET020Compressor control
ET062Recirculation flap position
ET083+ 12 V after ignition present
ET085Heated rear screen: automatic mode
ET086Heated rear screen: manual mode
ET140Air conditioning request
ET141Passenger compartment blower
AFTER REPAIRRepeat the conformity check from the start.

Vdiag No.: 44
MR-413-X44-62B000$506_eng.mif

62B-46
MR-413-X44-62B000$552_eng.mif
V1
CLIMATE CONTROL
Fault finding - Interpretation of statuses

Vdiag No.: 44
62B
ET083
+ 12 V AFTER IGNITION PRESENT
NOTESUse the Wiring Diagram Technical Note for the New Twingo.
This status indicates activation of + 12 V APC by the UCH via the multiplex line.
When the ignition is off, the status displays ABSENT.
When the ignition is on, the status displays PRESENT.
If the status does not operate, carry out fault finding on the UCH (see 87B, UCH).
AFTER REPAIRRepeat the conformity check from the start.
CLIM_V44_ET083

62B-64
MR-413-X44-62B000$736_eng.mif
V1
CLIMATE CONTROL
Fault finding - Interpretation of commands

Vdiag No.: 44
62B
AC004
AC005
MIXER MOTOR: MAXIMUM COLD
MIXER MOTOR: MAXIMUM HOT
NOTESNOTES:
The flap is located in the air conditioning mechanism.
In order to confirm this command, the engine must be warm in order to be able to
check for the presence of a warm air flow during command AC005.
This command is used to activate the mixing flap to check that it is working. Switch on the ignition, and issue a
passenger compartment ventilation request (via the driver's control panel).
Run command AC004 and check that the air coming out of the air vents is cold (ambient temperature).
Run command AC005 and check that the air coming out of the air vents is warm.
If the command does not operate as indicated, consult the customer complaints:
–Production of cold air, see: ALP 8 No cold air and ALP 9 Too much cold air.
–Production of warm air, see: ALP 6 No heating or loss of heating.
AFTER REPAIRCheck that the air conditioning function operates correctly.
CLIM_V44_AC004 / CLIM_V44_AC005

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V1
CLIMATE CONTROL
Fault finding - Interpretation of commands

Vdiag No.: 44
62B
AC006
AC007
DISTRIBUTION MOTOR: AIR VENTS
DISTRIBUTION MOTOR: DE-ICING
NOTESNOTE
The flap is located under the dashboard.
This command is used to activate the ventilation/de-icing distribution flap to check that it is working.
Switch on the ignition, and issue a passenger compartment ventilation request (via the driver's control panel).
Run command AC007 and check that the air comes out by the windscreen.
Run command AC006 and check that the air comes out of the front air vents.
If the command does not operate as indicated, check the air distribution conformity (see ALP 2 Air distribution
fault).
AFTER REPAIRCheck that the air conditioning function operates correctly.
CLIM_V44_AC006 / CLIM_V44_AC007

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V1
62B
CLIMATE CONTROL
Diagnostic - Fault finding chart
ALP 1 No dialogue with the computer
NOTESSpecial notes: To run fault finding on the vehicle computers, use the key to switch on
the ignition.
Use the W iring Diagram Technical Note for the New Twingo.
Check that the vehicle is equipped with climate control.
Try to establish dialogue with a computer on another vehicle to make sure that the diagnostic tool is not faulty.
If the tool is not at fault, and dialogue cannot be established with any other computer on the same vehicle, the
cause could be a faulty computer interfering on the multiplex network.
Check the battery voltage and perform the necessary operations to obtain a correct voltage (9.5 V < Battery
voltage < 17.5 V, see section 16A Starting-charging).
Check:
–the connection between the diagnostic tool and the diagnostic probe (lead in good condition),
–the connection between the diagnostic sensor and the diagnostic socket (lead in good condition).
Carry out fault finding on the multiplex network using the diagnostic tool (see 88B, Multiplex).
Check the condition and position of fuse F29 (15 A) in the passenger compartment fuse box.
Consult section 81C Fuses.
Disconnect the connectors of the following components of connection SP2:

●Component connector 615
●Component connector 419
●Component connector 645
●Component connector 319
●Component connector 261
●Component connector 653
●Component connector 1428
Check the insulation and continuity of connection SP2 between components 419 and 1016.
Check the vehicle earth connection NAM of the connector of component 419.
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 these checks do not reveal any faults, carry out a test on each of the components involved in connection
SP2 (short circuit).
Check the condition and position of fuse F18 (10 A) in the passenger compartment fuse box.
Consult section 81C Fuses.
Disconnect the connectors of the following components of connection BP6:

●Component connector 995
●Component connector 419
AFTER REPAIRCarry out a complete check with the diagnostic tool.
CLIM_V44_ALP1

Vdiag No.: 44
MR-413-X44-62B000$828_eng.mif