Kia Sedona (2008 year). Manual - part 437

Fig. 14: Mode Control Actuator Circuit 

5. Check the voltage between terminals 3 and 4. 

DOOR POSITION CHART 

REPLACEMENT 

1. Disconnect the negative (-) battery terminal.  

2. Remove the rear heater unit. Refer to REPLACEMENT.  

3. Disconnect the mode control actuator connector (A).  

4. Loosen the mounting screws and then remove the mode control actuator (B). 

Fig. 15: Identifying Mode Control Actuator And Connector

Door position

Voltage (3-4)

Error detecting

Vent

0.3 ± 0.15V

Low voltage: 0.1V or less

Defrost

4.7 ± 0.15V

High voltage: 4.9V or more

 

2008 Kia Sedona EX 

2008 HVAC Rear Heater - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:03:45 PM

Page 10 

© 2006 Mitchell Repair Information Company, LLC. 

5. Installation is the reverse order of removal.  

REAR POWER MOSFET 

INSPECTION 

1. Ignition "ON".  

2. Manually operate the control switch and measure the voltage of blower motor between pin 1 and 2.  

3. Select the control switch to raise voltage until high speed. 

Fig. 16: Measuring Voltage Of Blower Motor Between Pin 1 And 2 

FAN VOLTAGE CHART 

REPLACEMENT 

Fan

Voltage

Manual

1 STEP

4.5 ± 0.5V

2 STEP

5.7 ± 0.5V

3 STEP

6.9 ± 0.5V

4 STEP

8.1 ± 0.5V

5 STEP

9.3 ± 0.5V

6 STEP

10.5 ± 0.5V

7 STEP

Battery (+)

*AUTO COOLING: Auto speed (4.5V-B+)
*AUTO HEATING: Auto speed (4.5V-10.5V)

 

2008 Kia Sedona EX 

2008 HVAC Rear Heater - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:03:45 PM

Page 11 

© 2006 Mitchell Repair Information Company, LLC. 

1. Disconnect the negative (-) battery terminal.  

2. Remove the luggage side trim. Refer to LUGGAGE SIDE TRIM REPLACEMENT .  

3. Disconnect the power Mosfet connector (A).  

4. Remove the power Mosfet (B) after loosening the mounting screws. 

Fig. 17: Identifying Power Mosfet And Connector 

REAR CONTROL PANEL 

COMPONENT 

 

2008 Kia Sedona EX 

2008 HVAC Rear Heater - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:03:45 PM

Page 12 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 18: Identifying Rear Control Panel Component 

REPLACEMENT 

 

2008 Kia Sedona EX 

2008 HVAC Rear Heater - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:03:45 PM

Page 13 

© 2006 Mitchell Repair Information Company, LLC.