2009 RENAULT SCENIC display

62B - 27
CLIMATE CONTROL
Fault finding – Interpretation of statuses62B
V3 MR-372-J84-62B000$070.mif
Vdiag No.: 44
ET143
AIR CONDITIONING REQUEST 1
NOTESNote:
For more information, refer to the compressor switch-on request flowchart in Section
62A Air conditioning.
This status specifies whether the request to switch on air conditioning has been sent by the climate control
computer to the UCH or not.
When operation of the air conditioning is requested, the status should display ACTIVE.
When operation of the air conditioning is not requested, the status should display INACTIVE.
If the status does not operate as shown, contact your Techline.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2

62B - 28
CLIMATE CONTROL
Fault finding – Interpretation of parameters62B
V3 MR-372-J84-62B000$080.mif
Vdiag No.: 44
CLIMATE CONTROL
Fault finding – Interpretation of parameters
PR001
INTERIOR TEMPERATURE
NOTESNone.
The climate control computer receives the interior temperature signal through a wire connection.
To ensure this parameter is correct (without using a thermometer), simply read the temperature information
when the vehicle is cold (in the morning). The interior temperature, the exterior temperature and the engine
coolant temperature should be practically the same.
Another way of checking whether this sensor is correct is to check the resistance value of the sensor according
to temperature: refer to the electrical specifications of the sensor in the Help section.
If the temperature displayed by this parameter seems to be incorrect, apply the fault finding procedure for fault:
DF007 Interior temperature sensor circuit.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2
MR-372-J84-62B000$080.mif

62B - 29
CLIMATE CONTROL
Fault finding – Interpretation of parameters62B
V3 MR-372-J84-62B000$080.mif
Vdiag No.: 44
PR006
SOLAR RADIATION
NOTESNone.
The solar sensor is used to improve the comfort level of the air conditioning according to the windscreen solar
radiation.
This sensor measures the solar radiation level and transmits the information to the climate control computer
in the form of a measurement in W/m
2. This measurement ranges from 0 to 400 W. The sensor is faulty if it
gives a value of 400 W although the vehicle is in the shade (in the workshop) as this value equals maximum
solar radiation.
If the value displayed by this parameter seems to be incorrect: check the signal transmitted by the sensor
based on the solar radiation, by measuring between track 2 of the sensor and earth (solar sensor connected
electrically, ignition on and control panel on).
0 W 4.91 V
50 W 4.28 V
100 W 3.70 V
200 W 2.55 V
300 W 1.40 V
400 W 0.30 V
If the fault is still present, apply the fault finding procedure for fault: DF026 Solar sensor circuit.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2

62B - 31
CLIMATE CONTROL
Fault finding – Interpretation of parameters62B
V3 MR-372-J84-62B000$080.mif
Vdiag No.: 44
PR012
MIXER FLAP POSITION
NOTESNone.
The mixer flap moves according to the temperature requested or automatically if the climate control is in
automatic mode.
The mixing motor does not have a position copy potentiometer. This parameter is therefore an indication of the
flap position according to how the motor is being controlled by the climate control computer.
As specified in the conformity check, in the maximum cold position (15 ˚C), the parameter indicates 0% and in
the maximum hot position (27 ˚C), the parameter indicates 100%.
If the value displayed by this parameter seems to be incorrect or if the parameter is correct but the blown air
temperature does not vary according to user requests: apply the fault finding procedure for fault: DF010 Mixing
motor circuit or refer to ALP 6 "No warm air" or ALP 8 "No cold air" depending on the customer complaint
(these fault finding charts are given in Section 62A Air conditioning).
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2

62B - 35
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
CLIMATE CONTROL
Fault finding – Conformity check
PASSENGER COMPARTMENT VENTILATION SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off
(air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Note:
–Read the parameters when the vehicle is cold (in the morning) to check the
conformity of the temperature parameters (without thermometer). The two
temperatures should be practically the same (as should the coolant temperature
given by the injection system).
–The invalid values given in this check correspond to the value sent by the diagnostic
tool (substitute value) when the sensor in question is faulty. A sensor fault can be
detected when these invalid values are displayed (this is an important point for
sensors on which fault finding cannot be performed, e.g. exterior temperature
sensor).
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1TemperaturesPR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
PR002:Exterior
temperatureX = exterior
temperature ± 5 ˚C
(invalid value: 215 ˚C)
Note: This status is
reset by the climate
control computer but
its source is the UCH.In the event of a fault, refer
to the interpretation of this
parameter (see
Section 87B).
2Solar radiationPR006:Solar radiationfrom 0 W
(no solar radiation) to
400 W
(maximum solar
radiation)
(invalid value:
765 W)In the event of a fault, see
the interpretation of this
parameter.
ACREG X84 1.1
Edition 2
MR-372-J84-62B000$090.mif

62B - 36
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
PASSENGER COMPARTMENT VENTILATION SUB-FUNCTION (CONTINUED)
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
3Passenger
compartment
blowerPR019:Passenger
compartment
blower PWM
settingSpeed 0 = 0%
Speed 8 = 100%
Note: The PWM signal
is a modulated control
voltage used to control
the heating/ventilation
fan power module for
the passenger
compartment.If there is a fault or for more
information (to find the
intermediate speed
percentages), refer to the
fault finding procedure
for this parameter.
Note: If the parameter
varies correctly but the
passenger compartment
blower does not work: refer
to ALP 5.
ET141:Passenger
compartment
blowerRUNNING or
STOPPED depending
on user requestIf there is a fault, refer to the
fault finding procedure
for this status.
4Air flapsPR012:Mixing flap
position0% = Max. cold
position (15 ˚C)
100% = Max. hot
position (27 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
ET062:Recirculation
flap positionOPEN if the flap is in
the exterior air position
CLOSED if the flap is
in the recirculation
positionIn the event of a fault, refer
to the interpretation of
this status.
PR011:Distribution flap
positionfrom 0% to 100%.
Note:
0% = Air vents only
position
100% = De-icing
positionIf there is a fault or for more
information (various flap
opening values according to
the user selection), refer to
the fault finding
procedure for this
parameter.
ACREG X84 1.1
Edition 2

62B - 37
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
COLD LOOP SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off (air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1Request to
engage the
compressorET143:Air conditioning
request 1ACTIVE for air
conditioning request
(AC button pressed or
AUTO button pressed
with maximum cold
request).
INACTIVE the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
Note: This status
represents the request from
the climate control
computer to the UCH to
switch on the compressor
(refer to the flowchart in the
system operation section).
2TemperaturePR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
3Passenger
compartment
blowerET141:Passenger
compartment
blowerRUNNING
or
STORED
depending on user
requestIf there is a fault, refer to the
fault finding procedure
for this status.
4Air flapPR012:Mixing flap
position0% = Max cold
position (15 ˚C)
100% = Max hot
position (27 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
5Solar radiationPR006:Solar radiationfrom 0 W (no sunlight)
to 400 W (maximum
sunlight).
(invalid value: 765 W)If there is a fault, refer to the
fault finding procedure
for this parameter.
ACREG X84 1.1
Edition 2

62B - 38
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
USER SELECTION SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off (air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1Heated rear
screenET086:Heated rear
screen: manual
modeACTIVE: De-icing
button at the bottom of
the control panel
pressed.
INACTIVE: the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
ET085:Heated rear
screen:
automatic modeACTIVE: De-icing
button at the top of the
control panel pressed
(See Clear function).
INACTIVE: the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
2Request to
engage the
compressorET143:Air conditioning
request 1ACTIVE for air
conditioning request
(AC button pressed or
AUTO button pressed
with maximum cold
request).
INACTIVE the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
Note: This status
represents the request from
the climate control
computer to the UCH to
switch on the compressor
(refer to the flowchart in the
system operation section).
ACREG X84 1.1
Edition 2