SsangYong Musso. Manual — part 539

7D-10 FATC-HAVC

Fault Safety Function

FATC airconditioner system not only performs self-diagnosis
but also has safety function against faults if there is open or
short in the incar sensor, ambient sensor, water temperature
sensor and temperature door potentiometer.

NO.

Item

Defects

Fault safety function

1

Incar sensor

Open or short

Control When substituted 25°C

2

Ambient sensor

Control When substituted 20°C

3

Water temperature sensor

Perform heating maneuver control function under

refrigeration maneuver control entering conditions

and release after 10 minutes.

4

Temperature door potentiometer

Set temperature 17 - 24.5°C:max. COLD position

Set temperature 25 - 32°C:max. HOT position

Open or short

Open or short

Open or short

FATC-HAVC 7D-11

1 AUTO Switch
2 MODE Switch
3 OFF Switch
4 Temperature UP/DOWN Switch
5 Defrost Switch

6 Airconditioner Switch
7 Recirculation

•

fresh Air Switch

8 Blower Switch (UP/DOWN)
9 VFD (Vacuum Fluorescent Display)

MAINTENANCE AND REPAIR

FATC CONTROL PANEL

Components

7D-12 FATC-HAVC

Pin Number and Connection Circuit

Pin No.

1

Connection circuit

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Rheostat

Tail lamp

Battery (+)

Power TR (B)

Power TR (C)

Temperature actuator (CCW)

IG2

Ground

Airconditioner switch ground

HI speed relay

Photo sensor (+)

Photo sensor (-)

Temperature actuator F/B

Temperature actuator (CW)

IG2

Ground

Connector A

Pin No.

1

Connection circuit

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Incar sensor (+)

Ambient sensor (+)

Coolant sensor (+)

Sensor voltage 5V

Sensor ground

Intake (ambient)

Intake (incar)

-

-

-

VENT

B/L

FLR

MIX

DEF

-

-

-

-

-

Connector B

17

18

19

20

16

FATC-HAVC 7D-13

Removal & Installation Procedure

1. Turn the ignition switch to OFF position.

2. Remove the digital clock.

3. Unscrew the screw from the center panel, pull out each

switches and remove the center panel.

4. Unscrew the 6 screws and remove the audio control panel

assembly.

5. Unscrew the 4 screws and remove the airconditioner control

panel assembly.

6. Installation should follow the removal procedure in the

reverse order.