SsangYong Stavic / SsangYong Rodius (2005 year). Service manual — part 282

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EFFECTIVE DATE

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AIR CONDITIONING SYSTEM

STAVIC - 2004.09

27

3A

4) Removal and Installation

1. Disconnect the negative battery cable and remove the front bumper assembly.

2. Disconnect the AQS sensor connector, unscrew two bolts (10 mm) and remove the AQS sensor assembly.

(Install in the reverse order of removal.)

AQS sensor

Connector

Ambient temperature

sensor

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AIR CONDITIONING SYSTEM

STAVIC - 2004.09

28

3A

10. AIR CONDITIONER MODULE SENSORS AND ACTUATORS

1) Duct Temperature Sensor

The duct temperature sensor is installed on the top of heater unit. It detects the inside temperature of duct and transmits
the voltage value that is changed according to resistance value (NTC) to FATC controller.

Inspection

If the duct temperature sensor defect code (DTC 3) is set, check as below.

1. Remove the duct temperature sensor and measure the resistance between terminals on the sensor connector.

(standard: approx. 25

°C, 2.2 k

Ω

)

In addition, if the resistance is extremely high or, replace the sensor.

2. If the measured value is out of the specified range, replace the duct temperature sensor. If the measured value is

within the specified range, check as below.

3. Turn the ignition switch to ON position and measure the voltage to duct temperature sensor from the FATC controller

connector.

(standard: approx. 2 V at 25

°C)

4. If the voltage value cannot be measured, check the circuit for open. If the measured value is within the specified

range, replace the FATC controller.

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EFFECTIVE DATE

AFFECTED VIN

AIR CONDITIONING SYSTEM

STAVIC - 2004.09

29

3A

Front air conditioner power transistor

2) Power Transistor

The power transistor controls the fan speed. It controls the blower motor operating speed without stages by changing
the current value to the base of power transistor when receiving the fan control signal from FATC.

Inspection

If the power transistor defect code (DTC 6) is appeared, check as below.

1. Turn the ignition switch to ON position.

2. Measure the voltage between terminals while changing the fan speed from stage 1 to stage 6.

3. The specified voltage value in each stage:

Stage

Blower (V)

Stage 1

4.5

Stage 2

6.0

Stage 3

7.5

Stage 4

9.0

Stage 5

11

Stage 6

Max. HI

4. If the voltage is out of specified value, check the circuit for open. If the circuit is in normal condition, replace the

power transistor.

Rear air conditioner power transistor

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CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

AIR CONDITIONING SYSTEM

STAVIC - 2004.09

30

3A

3) Mode Door Actuator

The mode door actuator is an actuator that closes, opens and adjusts the mode door for VENT, FLOOR and DEF mode
to change the air flow directions according to FATC controller. Under the FATC controller AUTO mode, it stays on DEF
mode until the engine coolant temperature reaches at normal operating level and the mode is changed as below when
the MODE switch is pressed.