Kia Sedona (2008 year). Manual — part 35

COMPONENT LOCATION

Fig. 7: Locating Ambient Temperature Sensor
Courtesy of KIA MOTORS AMERICA, INC.

DESCRIPTION

1. The ambient temperature sensor is located at the front of the condenser and detects ambient air

temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease
with higher temperatures.

2. The sensor output will be used for discharge temperature control, temperature regulation door control,

blower motor level control, mix mode control and in-car humidity control.

2008 Kia Sedona EX

2008 HVAC A/C Compressor Controls (Full Auto) - Sedona

Microsoft

Monday, May 24, 2010 3:58:11 PM

Page 6

© 2006 Mitchell Repair Information Company, LLC.

INSPECTION

1. Ignition "OFF"

2. Disconnect ambient temperature sensor.

3. Check the resistance of ambient temperature sensor between terminals 1 and 2 whether it is changed by

changing of the ambient temperature.

Fig. 8: Checking Resistance Between Ambient Temperature Sensor Terminals 1 And 2
Courtesy of KIA MOTORS AMERICA, INC.

SPECIFICATION

AMBIENT TEMPERATURE SPECIFICATION

4. If the measured resistance is not specification, substitute with a known-good ambient temperature sensor

and check for proper operation.

5. If the problem is corrected, replace the ambient temperature sensor.

REPLACEMENT

1. Disconnect the negative (-) battery terminal.

2. Remove the front bumper. Refer to FRONT BUMPER .

3. Remove the ambient temperature sensor (A).

NOTE:

If the ambient temperature is below 0°C (32°F), the A/C compressor will be
stopped.
The compressor will be operated by manual operating.

Ambient temperature [°C (°F)]

Resistance between terminals l and 2 (kohms)

-10 (14)

158.18 ± 4.9%

0 (32)

95.10 ± 3.9%

10 (50)

58.80 ± 2.9%

20 (68)

37.32 ± 1.9%

2008 Kia Sedona EX

2008 HVAC A/C Compressor Controls (Full Auto) - Sedona

Microsoft

Monday, May 24, 2010 3:58:11 PM

Page 7

© 2006 Mitchell Repair Information Company, LLC.

Fig. 9: Identifying Ambient Temperature Sensor
Courtesy of KIA MOTORS AMERICA, INC.

4. Installation is the reverse order of removal.

HUMIDITY SENSOR

COMPONENT LOCATION

2008 Kia Sedona EX

2008 HVAC A/C Compressor Controls (Full Auto) - Sedona

Microsoft

Monday, May 24, 2010 3:58:11 PM

Page 8

© 2006 Mitchell Repair Information Company, LLC.

Fig. 10: Locating Humidity Sensor
Courtesy of KIA MOTORS AMERICA, INC.

DESCRIPTION

1. Humidity sensor is located at the lower crush pad and detected in-car humidity for in-car humidity

control.

2. If ambient air temperature or in-car humidity is outside certain range, it will turn on A/C to control in-car

humidity preventing in car fogging.

2008 Kia Sedona EX

2008 HVAC A/C Compressor Controls (Full Auto) - Sedona

Microsoft

Monday, May 24, 2010 3:58:11 PM

Page 9

© 2006 Mitchell Repair Information Company, LLC.