Kia Sedona (2008 year). Manual - part 247

Fig. 121: Checking Voltage Between Terminal "6" And "7" Of Driver Direction 
Potentiometer 
Courtesy of KIA MOTORS AMERICA, INC. 

DOOR POSITION CHART 

Fig. 122: Output Voltage Graph 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured voltage within specifications in DOOR POSITION CHART? 

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  

Door position

Voltage (6-7)

Error detecting

MAX. Cooling

0.3 ± 0.15V

Low voltage: 0.08V 

or less

MAX. Heating

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 3:56:08 PM

Page 110 

© 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. 

VERIFICATION OF VEHICLE REPAIR 

After a repair, it is essential to verify that the fault has been corrected. 

1. Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode and then clear DTC.  

2. Operate the vehicle and monitor the DTC on the scan tool.  

3. Are any DTCs present? 

YES  

Go to the applicable troubleshooting procedure. 

NO  

System is performing to specification at this time. 

DTC B1261 AIR POTENTIOMETER SHORT (HIGH) - REAR 

COMPONENT LOCATION 

Fig. 123: Identifying Temperature Control Actuator Component Location 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

Refer to DTC B1260. 

DTC DESCRIPTION 

The A/C controller sets DTC B1261 if there is a short to power in the air mix potentiometer. 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:08 PM

Page 111 

© 2006 Mitchell Repair Information Company, LLC. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION CHART 

SPECIFICATION 

Refer to DTC B1260. 

MONITOR SCAN TOOL DATA 

1. Connect scan tool to Data Link Connector (DLC).  

2. Engine "ON"  

3. Monitor the "Rear Air Mix Potentiometer" Parameter on the scan tool while operating temp, switch. 

Fig. 124: Diagnosis Function Screen Display - Air Mix Potentiometer (Rear) 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Are the DTC B1261 present and is parameter of "Rear Air Mix potentiometer" fixed? 

Parameter of "Rear Air Mix potentiometer" will be fixed at 100% (or any value above 90%), or 0% (or 
any value below 10%), if there is any fault in Rear Air Mix potentiometer.

Item

Detecting Condition

Possible cause

DTC Strategy



Voltage check  



Short circuit in harness  



Faulty driver Air Mix 
potentiometer  

Threshold value



> 4.9V  

Detecting time



0.3 sec  

FAIL SAFE



If temperature setting 17-24.5°C(63-76°F) fix 
at max. cooling position.  



If temperature setting 25-32°C(77-90°F) fix at 
max. heating position.  

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:08 PM

Page 112 

© 2006 Mitchell Repair Information Company, LLC. 

YES  

Go to TERMINAL AND CONNECTOR INSPECTION procedure. 

NO  

Fault is intermittent caused by poor contact in the sensor's and/or A/C controller's connector or was 
repaired and A/C controller memory was not cleared. Thoroughly 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. 

TERMINAL AND CONNECTOR INSPECTION 

Refer to DTC B1260. 

SIGNAL CIRCUIT INSPECTION 

1. Check for short in harness. 

1. Ignition "OFF"  

2. Disconnect Rear Air Mix potentiometer.  

3. Measure resistance between terminal "5" and "6" of Rear Air Mix potentiometer. 

Specification: Approx. infinity ohms 

Fig. 125: Checking Resistance Between Terminal "5" And "6" Of Rear Air Mix 
Potentiometer 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured resistance within specifications? 

YES  

Go to "GROUND CIRCUIT INSPECTION" procedure.

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:08 PM

Page 113 

© 2006 Mitchell Repair Information Company, LLC.