SsangYong Rexton. Service manual - part 640

 

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SsangYong Rexton. Service manual - part 640

 

 

SSANGYONG  Y200

7D-26  AUTOMATIC CONTROL HVAC SYSTEM

Check continuity in the harness between the controller connectors and
the air mix door motor connector.

Is there a problem with the wiring?
Repair the problem found with the wiring and replace as needed.

Is the repair complete?

1. Reconnect the FATC harness connectors to the controller.
2. Reconnect the air mix door motor to the FATC harness.

3. Turn the ignition to ON.
4. Measure the voltage between ground and terminal B5 at the control-

ler by backprobing the connector.

Is the voltage within the specified value?

Repair the problem found between the controller connector wiring and
air mix door connector wiring.
Is the repair complete?

1. Set the temperature controller to LO.
2. Measure the voltage between ground and terminal A15 at the

controller by backprobing the connector. (Specified voltage : 12 V)

3. Raise the temperature setting on the controller to HI and measure

the voltage. (Turn to 0V)

4. Measure the voltage between ground and terminal A9 at the control-

ler. (Specified voltage : 12 V)

5. Change the temperature setting on the controller to LO and measure

the voltage. (0 V)

Is the voltage within the specified value?

Recheck all wiring circuits between the controller and the air mix door
motor with changing the temperature setting.
Does the air mix door operate normally?

Replace the air mix door motor.
Is the repair complete?

Recheck all wiring circuits between the controller and the air mix door
motor.

Is there a problem in the wiring or the connectors?
Repair the problem in the wiring between the FATC controller and the
air mix door motor.

Is the repair complete?
Recheck the air mix door motor.

Is there a problem in the air mix door motor?

Replace the air mix door motor.
Is the repair complete?

1. Install the components.
2. Perform the diagnostic test of the controller.

Does the DTC reset?

Air Mix Door Error (Cont’d)

Action

Step

10

12

13

14

15

16

17

18

19

11

20

21

Yes

No

Go to Step 16

System OK

System OK

-

Go to Step 16

Go to Step 21

System OK

-

Go to Step 18

Go to Step 19

System OK

-

System OK

Go to Step 6

Go to Step 15

Go to Step 17

System OK

-

Go to Step 14

0 - 5 V

Go to Step 13

System OK

-

Go to Step 11

Go to Step 12

AUTOMATIC CONTROL HVAC SYSTEM  7D-27

SSANGYONG  Y200

POWER TRANSISTOR ERROR

SUN SENSOR ERROR

1. Remove the controller and disconnect the controller connector.

2. Disconnect power transistor connector.

3. Examine the open or short circuit between controller connector and

power transistor connector.

Is there a problem in the wiring or the connectors?

Repair the faulty wiring and replace as needed.

Is the repair complete?
1. Reconnect power transistor connector and FATC connectors.

2. Turn the ignition switch to ON.
3. Measure the voltage between ground and terminal B12 of the FATC

controller while changing the blower speed from 1 to 6 manually.

1st : 4.5 V

4th : 9.0 V

2rd : 6.0 V

5th : 11.0 V

3th : 7.5 V

6th : 12.5 V

Is the resistance equal to the specified value?
Replace the power transistor.

Is the repair complete?

Replace the FATC controller.
Is the repair complete?

Action

1. Disconnect the Sun sensor connector.

2. Place the sun sensor under the sun light and measure the current

between the connector terminals.

3. Place the sun sensor under the shadow place and measure the

current between the connector terminals.

Is the measured current lower at the shadow place?

replace the sun sensor.
Is the repair complete?

1. Remove the controller with connecting the connectors.
2. Turn the ignition switch to ON.

3. Measure the voltage terminal A13 and B10 by backprobing the

connectors. (Sun light: 2.5 V, Shadow: 4.8 V)

Is the voltage equal to the specified value?
Repair open or short circuit.

Is the repair complete?
Replace the FATC controller.

Is the repair complete?

Action

Yes

Yes

No

No

Go to Step 3

Go to Step 2

System OK

-

Go to Step 5

Go to Step 4

4

System OK

-

System OK

-

Go to Step 2

Go to Step 3

2

Go to Step 5

Go to Step 4

System OK

-

System OK

-

Step

1

2

3

5

Step

1

3

4

5

System OK

-

SSANGYONG  Y200

7D-28  AUTOMATIC CONTROL HVAC SYSTEM

1. Remove the controller with connecting the connectors.
2. Turn the ignition switch to ON.

3. Set the blower speed for 5th speed manually.
4. Measure the voltage at terminal A10 and ground.

Does the measured voltage indicate 0V?

Replace the FATC controller.
Is the repair complete?

1. Check the wiring harness associated with blower high relay and

terminals.

2. Repair any defects found.

3. Install the component.

Is DTC retrieved as a current DTC?
Replace blower high relay.

Is the repair complete?

MAX-HIGH RELAY ERROR

Action

Step

1

2

3

4

Yes

System OK

Go to Step 4

System OK

Go to Step 3

No

-

System OK

-

Go to Step 2

AUTOMATIC CONTROL HVAC SYSTEM  7D-29

SSANGYONG  Y200

REPAIR INSTRUCTIONS

ON-VEHICLE SERVICE

CONTROL SWITCH ASSEMBLY

1. Remove the center instrument panel.

2. Remove the four screws securing the control

switch assembly.

3. Remove the control switch assembly from the

instrument panel.

YAD7D160

YAD7D170

YAD7D180

 

 

 

 

 

 

 

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