Kia Sedona (2008 year). Manual - part 256

Fig. 163: Checking Resistance Between Terminal "3, 4" Of Driver Air Mix Motor And 
Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured resistance within specifications? 

YES  

Go to "VISUAL/PHYSICAL INSPECTION" procedure. 

NO  

Check for short to ground in signal harness. Repair as necessary and go to "VERIFICATION OF 
VEHICLE REPAIR" procedure. 

VISUAL/PHYSICAL INSPECTION 

1. Check actuator. 

Check if Driver Air Mix Actuator works properly through ACTUATION TEST. 

1. Ignition: ON  

2. Connect scan tool and select " ACTUATION TEST" mode and press [F1] 

 

2008 Kia Sedona EX 

2008 HVAC Blower & A/C Controls (Automatic) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:56:09 PM

Page 146 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 164: Diagnosis Function Screen Display - Actuation Test
Courtesy of KIA MOTORS AMERICA, INC. 

3. Does Intake Actuator work properly? 

YES  

Go to "COMPONENT INSPECTION" procedure. 

NO  

Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, 
or damage. 

Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR" 
procedure. 

COMPONENT INSPECTION 

1. Check actuator motor. 

1. Ignition "OFF"  

2. Disconnect Intake Potentiometer.  

3. Verify that the temperature actuator operates to the fresh position when connecting 12V to the 

terminal "3" and grounding terminal "4".  

4. Verify that the temperature actuator operates to the recirculation position when the connections are 

reversed. 

Fig. 165: Checking Terminal 3 And Grounding Terminal 4 
Courtesy of KIA MOTORS AMERICA, INC. 

5. Does the actuator work properly? 

YES  

Go to step 2. 

NO  

 

2008 Kia Sedona EX 

2008 HVAC Blower & A/C Controls (Automatic) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:56:09 PM

Page 147 

© 2006 Mitchell Repair Information Company, LLC. 

Substitute with a known-good actuator and check for proper operation. If the problem is corrected, 
replace actuator and then go to "VERIFICATION OF VEHICLE REPAIR" procedure. 

2. Check potentiometer 

1. Ignition "ON"  

2. Connect Intake potentiometer.  

3. Measure voltage between terminal "5" and "6" of Intake potentiometer while operating Intake 

switch. 

Specification: Refer to DOOR POSITION CHART 

Fig. 166: Checking Voltage Between Terminal "5" And "6" Of Intake Potentiometer 
Courtesy of KIA MOTORS AMERICA, INC. 

DOOR POSITION CHART 

Specifications: Voltage value of Intake potentiometer as a function of position of Intake. 

4. Is the measured voltage within specifications? 

YES  

Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, 
or damage. 

Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR" 
procedure. 

NO  

Substitute with a known-good actuator and check for proper operation. If the problem is corrected, 

Door position

Voltage (5-6)

Error detecting

Fresh

0.3 ± 0.15V

Low voltage: 0.08V 

or less

Recirculation

4.7 ± 0.15V

High voltage: 4.9V 

or more

 

2008 Kia Sedona EX 

2008 HVAC Blower & A/C Controls (Automatic) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:56:09 PM

Page 148 

© 2006 Mitchell Repair Information Company, LLC. 

replace actuator and then go to "VERIFICATION OF VEHICLE REPAIR" procedure.

3. Check A/C Control Unit. 

1. Engine "ON"  

2. Connect A/C Control Unit.  

3. Measure voltage between terminal "7" and "8" of A/C Control Unit while operating the Intake 

switch. 

Specification :Approx. 12V 

Fig. 167: Checking Voltage Between Terminal "7" And "8" Of A/C Control Unit 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured voltage within specifications? 

YES  

Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, 
or damage. 

Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR" 
procedure. 

NO  

Substitute with a known-good A/C Control Unit and check for proper operation. 

If the problem is corrected, replace A/C Control Unit and then go to "VERIFICATION OF 
VEHICLE REPAIR" procedure. 

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC B1208. 

DTC B2409 DIRECTION CONTROL MOTOR (DRIVER) 

COMPONENT LOCATION 

 

2008 Kia Sedona EX 

2008 HVAC Blower & A/C Controls (Automatic) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:56:09 PM

Page 149 

© 2006 Mitchell Repair Information Company, LLC.