2009 RENAULT TWINGO ignition

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

62B-65
MR-413-X44-62B000$736_eng.mif
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

62B-68
MR-413-X44-62B000$828_eng.mif
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

62B-69
MR-413-X44-62B000$828_eng.mif
V1
CLIMATE CONTROL
Diagnostic - Fault finding chart

Vdiag No.: 44
62B
ALP 1
CONTINUED
●Component connector 645
Check the insulation and continuity of connection BP6 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
BP6 (short circuit).
Ensure that the supply to the diagnostic socket is correct:
Check the condition and position of fuse F12 (5 A) in the passenger compartment fuse box.
Consult section 81C Fuses.
Connector of component 645 of connection BP19 disconnected:
–Check for + after ignition feed on connection BP19 of component 225.
If the + after ignition feed on connection BP 19 is not guaranteed, check component 1016.
–Check connections NAM and MAM of component 225.
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
BP19 (short circuit).
If dialogue has still not been established after these checks, contact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
CLIM_V44_ALP1

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-87
MR-413-X44-62B000$874_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Diagnostic - Fault finding chart62B
ALP 9 Too much cold air
NOTESOnly deal with this customer complaint after a full check with the diagnostic tool
(fault reading 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.
With the engine running at idle speed and air conditioning switched off (AC button not pressed and no AUTO
mode), check that the air conditioning compressor clutch is not engaged.
Is the air conditioning compressor
clutch engaged?NO
YES
With the engine stopped, check that the compressor clutch electric control operates correctly, using the
diagnostic tool to run command AC180 Air conditioning compressor relay (injection command mode menu).
–During the command, connection 38R of component 171 must be supplied with + 12 V.
–After the command, connection 38R of component 171 must no longer be supplied with + 12 V.
Is the connection still supplied with + 12 V after the command?
YES NO
Check the continuity and insulation from + 12 V of
connection 38R between components 171 and 584.Check that the air conditioning compressor clutch is
not jammed (mechanical fault).
Is the connection OK? Is the clutch still engaged?
NO YES YES
If there is a repair procedure
(see Technical Note 6015A,
Repairing electrical wiring,
Wiring: Precautions for repair),
repair the wiring, otherwise
replace it.With the vehicle ignition off, check
that the compressor clutch relay is
not “jammed”, by checking the
continuity between connection
38R and connection AP3 of
component 584.
Is the continuity present?
NO
Apply the fault finding procedure for
command AC180 Air conditioning
compressor relay (see 13B Diesel
injection or 17B Petrol injection).
Is the fault still present?
Replace the air conditioning
compressor (see MR 411,
Mechanical, 62A, Air
conditioning, Compressor:
Removal - Refitting).
YES Replace the air
conditioning
compressor clutch
relay.
AFTER REPAIRCarry out a complete check with the diagnostic tool.

62B-93
MR-413-X44-62B000$920_eng.mif
V1

Vdiag No.: 44CLIMATE CONTROL
Diagnostic - Fault finding chart62B
ALP 13 Lighting fault on the control panel in night mode
NOTESOnly consult this customer complaint after a complete check of the multiplex
network and the air conditioning with the diagnostic tool.
Special notes:
With the ignition on, the control panel screen is permanently on but the panel buttons
only light up when the side lights are switched on.
Note:
If the exterior temperature sensor is faulty, the climate control computer is
activated 5 seconds after the ignition is switched on (the UCH performs fault
finding on the exterior temperature sensor).
Use the Wiring Diagram Technical Note for the New Twingo.
Is the fault shared with other components (first row cigarette lighter, radio, multifunction display, cruise control/
speed limiter on off switch, etc.)
YES NO
Switch on the ignition and the side lights.
Using the diagnostic tool and the conformity
check, check that the lighting dimmer is operating
correctly using parameter PR122 NIGHT TIME
LIGHTING LEVEL.
Does the parameter vary?
YES
Check the connection and condition of the
connector of component 419.
If there is a repair method (see Technical Note
6015A, Electrical wiring repair, Wiring: Repair
precautions), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.
NOCarry out a fault finding procedure of the
instrument panel.
Run a multiplex network test (see 88B,
Multiplex).
AFTER REPAIRCarry out a complete check with the diagnostic tool.
CLIM_V44_ALP13