SsangYong Rexton. Manual - part 634

SSANGYONG  Y200

7D-2  AUTOMATIC CONTROL HVAC SYSTEM

GENERAL

THE V5 FULL AUTOMATIC TEMPERATURE CONTROL
(FATC) SYSTEM

The full automatic temperature control (FATC) uses the
integrated control panel as the driver’s interface to
the system. The FATC receives driver’s input signal
and various input signal from sensors and controls the
a c t u a t o r s   t o   m a i n t a i n   d r i v e r ’ s   d e s i r e d   r o o m
temperature.

Refer to Section 7B, Manual Control Heating,
Ventilation, and Air Conditioning System for general
Information details for the following:

•

System Components – Functional.

•

The V5 A/C System.

•

V5 Compressor – Operation.

•

V5 Compressor – General Description.

DESCRIPTION AND OPERATION

Vacuum Fluorescent Display panel provides system
operating information for the driver. With the system
in OFF mode, the outside temperature is displayed
continuously.

The driver may display the current temperature setting
by selecting any mode except OFF or adjusting the
temperature control.

Also, it provides the convenience to the driver by
indicating the ambient air temperature. If it occurs the
faulty in the FATC system, the MICOM informs the driver
or mechanics of the results of the self-diagnostic check
and controls the system by

AUTOMATIC CONTROL HVAC SYSTEM  7D-3

SSANGYONG  Y200

FATC CONTROL

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SSANGYONG  Y200

7D-4  AUTOMATIC CONTROL HVAC SYSTEM

FATC INPUT/OUTPUT ROUTING DIAGRAM

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AUTOMATIC CONTROL HVAC SYSTEM  7D-5

SSANGYONG  Y200

FATC SYSTEM CHARACTERISTIC

Display Performance Enhancement

It allows VFD (Vacuum Fluorescent Display) to develop
the effect of the visible.

Airflow Control Enhancement

It allows MICOM to control the temperature and perform
the control automatically of the heating operation, the
cooling operation and the Mild operation. Also, MICOM
enable to control the amount of the airflow and the
direction of the vent outlet in order to keep the inside
air fresh.

Self-Diagnostic Circuit Check

The full automatic temperature control (FATC) air
conditioning controller contains a self-diagnosis
function to aid in finding any problem with the system.
If the FATC detects some errors it will blink the
temperature display screen for 5 seconds when the
ignition switch is ON.

To enter the diagnostic mode, perform the following
procedure.

1. Turn the ignition switch ON.

2. Set the temperature control to 26 

°

C (79 

°

F).

3. Within 3 seconds, push the AUTO and the OFF

switches simultaneously, more than three times.

4. Check the diagnostic trouble code (DTC) in the

temperature indicator screen blinks. If there are no
diagnostic trouble code (DTC) set, the screen will
display 00.

5. When the FATC controller indicates a DTC, proceed

to the table for the DTC.

6. Push the OFF switch to return the controller to its

normal function.

DTC

0

1

2

3

4

5

6

7

Description

Normal (No Error)

Inside Air Temperature Sensor Error

Ambient Air Temperature Sensor

Error

Coolant Temperature Sensor Error

Air Mix Door Error

Sun Sensor Error

Power Transistor Error

Action Taken When the Faulty Occurred

When any faulty is occurred in the automatic
temperature control system, it’s sign is informed to
the driver by flashing the set temperature display for
5 seconds at initial starting.

How to Verify Faulty Code

When the temperature is set to 26 ° C and then within 3
second, push the AMB switch and the OFF switch
simultaneously at three times, the FATC controller
temperature display indicates the faulty code after
performing the self-diagnosis by MICOM.

Condition For Clearing the Faulty Code

1. When the vehicle restarts

2. When push the OFF switch after indicating the faulty

code

3. When pass over 32 seconds after indicating the

faulty code

Fault Safety Function

FATC air conditioner not only performs self-diagnosis
but also has safety function against faults. If there is
open or short in the sensors or potentiometer of
temperature door some specific value will be
substitute.

Error

Inside air Sensor Error

Ambient Temperature
Sensor Error

Coolant Temperature
Sensor Error

Sun Sensor Error

Fault Safety Function

25 ° C will be substituted
as temperature of inside of
vehicle.

25 ° C will be substituted
as ambient temperature.

Sensor ON. 50 ° C will be
substituted as coolant
temperature.

Zero (0) will be substituted
as sun load.

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