2013 SSANGYONG KORANDO sensor

2) Interior Layout
Sun load sensor
It is mounted to the upper left-
hand of the instrument panel and
detects the sun-load enters to the
interior through the windshield
with a photo diode. Incar sensor
It is mounted to the rear of the
heater and A/C control panel
(with FATC) and detects the
interior air temperature drawn
through the senor inlet.Air conditioner module
It is mounted to inside of the
instrument panel and has the
evaporator core, heater core,
PTC heater and corresponding
actuator and different sensors.
Heater & A/C control assembly
With FATC With MTC
It falls in to two categories; FATC (Full Automatic Temperature Control) and MTC (Manual Temperature
Control), which controls the air conditioning system's operation.

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Intake sensor
It is mounted to the side of
evaporator core and detects the
temperature of the evaporator
core.Water temperature
sensor
It is mounted to the heater pipe
part and detects the coolant
temperature.
3) Air Conditioner Module Layout
Temp actuator
It changes the air mix door
opening according to the
control command from the
heater and A/C control
assembly.Evaporator core
It cools the surrounding air by
passing through the low-
temperature and low-pressure
refrigerant sprayed from the
expansion valve.
Heater core
It is mounted to the left-hand of
the air conditioner module and
heats the indoor using the heat
of the engine coolant.
Mode actuator
It controls the air outlet damper
to the five directions according
to the control command from
the heater and A/C control
assembly.

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3. FATC SYSTEM OPERATION PROCESS
1) Input/Output Factors
FATC (Full Automatic Temperature Control) is a temperature control device which receives signals from
various sensors (interior temperature sensor, ambient temperature sensor, water temperature sensor,
sun-load sensor) and control switches to control the blower motor and all kinds of actuator (mode door
actuator, mix door actuator, air source door actuator) through MICOM in the FATC, therefore, the interior
temperature of the vehicle is kept to the temperature which is set by a driver. The driver can check the
status of A/C through the LCD display of the A/C control assembly. The fan speed and the temperature
are adjusted automatically by the input values from different sensors to keep indoor air fresh. If the FATC
system has any defect, the self-diagnosis is used for the system to make it easier to detect the fault.

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Air distribution switch (switches in order)
Indoor temperature sensing part
The incar sensor is mounted to the rear of the
FATC and detects the interior air temperature
drawn through the air inlet.
Air source selection switch
When the switch is pressed, the indicator comes
on and the mode is switched to the recirculation
mode at the same time. When pressed again, the
indicator goes out and switched to the fresh air
mode at the same time.
Fan speed dial
Turn the dial to the left or right to adjust the fan
speed in 8 steps and the fan speed can be
checked through the LCD display.
A/C switch
When the switch is pressed, the indicator comes
on and the air conditioner starts at the same time.
Pressing the switch again goes out the indicator
and stops the air conditioner at the same time.

(2) Temperature control
The blowing air temperature is controlled by the temp actuator and the set temperature can be checked
via the LCD display.
Manual control
The discharge air temperature is controlled by the temperature control dial. The driver can select one
of the 31 levels.
Auto control
When pressing the AUTO switch, "AUTO" is shown on the display and the fan speed and air distribution
mode are adjusted automatically to keep interior temperature to the set temperature. In full AUTO mode,
the FATC receives various signals such as the indoor temperature, ambient temperature, engine coolant
temperature, sunlight, from different sensors to control the A/C compressor, mode actuator, intake
actuator, temp actuator, blower motors, etc. to keep indoor environments fresh.
Max. cooling/heating control (AUTO mode)
If the temperature is set to the lowest level (Lo) or highest level (Hi), the system will go into the maximum
cooling or maximum heating mode regardless of the sensor signals.
Set
temp.A/C
compressorAir outlet
(mode)Air inletBlower
voltageTemp actuator
LO ON Vent Recirculation 10.5 V Max. cooling position
HI OFF Footwell Fresh air 10.5 V Max. heating position
Temperature control dial
LCD display (temperature view)

(7) Self-diagnosis
Diagnostic trouble code
The FATC has a self-diagnosis function that can diagnose the system by itself. If this system is
defective, the LCD display shows the diagnostic trouble code (DTC) to inform a driver of defects on the
device such as a sensor or actuator. The driver can see the each sensor data on the air conditioning
system after entering self-diagnosis mode. Before checking each component, be sure to check the
default code by using self diagnosis function.
The diagnostic trouble code (DTC)
flashes twice and is displayed
repeatedly in order as long as a
separate operation is not performed.
Code Defective part
00 Normal
21 Ambient temperature sensor
22 Incar sensor
23 Water temperature sensor
24 Intake sensor
26 Temp door (control)
31 Mode door (vent)
32 Mode door (bi-level)
33 Temp door (cool)
34 Mode door (foot)
35 Mode door (defroster & foot)
36 Mode door (defroster)
37 Intake door (fresh air)
38 Intake door (1/3)
39 Intake door (recirculation)Diagnostic trouble code
Open circuit in sensor
Diagnostic trouble code

If the ON/OFF switch of the FATC is pressed for more than 5 seconds within 10 seconds after turning
the ignition key from the "OFF" position to the "ON" position, all the segments in LCD display comes on
for 3 seconds. 1.
The LCD display shows "2" and starts to check the sensor and actuator in the air conditioning system
automatically. 2.
3.
The self diagnosis ends when turning the ignition key from the "OFF" position to the "ON" position or
pressing the AUTO mode switch. 4.
Press for more
than 5 sec.
Segments comes on for 3 sec.

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This mode can be entered when the temperature control dial is turned clockwise (1 click or more) at
any time after entering self-diagnosis mode, and the LCD display shows "51". 1.
The values for each sensor are shown in sequence on the LCD display each time the defroster switch
is pressed. 2.
When the temperature control dial is turned anti-clockwise, the menu returns to status when entering
self-diagnosis mode. 3.Sensor data check
The value of the sun load sensor is displayed after being converted to one tenth.
Defroster switch
Temperature control dial