Kia Sedona (2008 year). Manual - part 222

4. Are the DTC B1200 present and is parameter of "Humidity Sensor" fixed? 

Parameter of "Humidity Sensor" will be fixed at 10%, if there is any fault in Humidity Sensor. 

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 

1. Many malfunctions in the electrical system are caused by poor harness and terminals. 

Faults can also be caused by interference from other electrical systems, and mechanical or chemical 
damage. 

2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, 

deterioration, or damage.  

3. Has a problem been found? 

YES  

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

NO  

Go to "SIGNAL CIRCUIT INSPECTION" procedure. 

SIGNAL CIRCUIT INSPECTION 

1. Check for open in harness. 

1. Ignition "OFF"  

2. Disconnect Humidity Sensor.  

3. Measure resistance between terminal "3" of Humidity Sensor and terminal "6" of A/C Control Unit. 

Specification: Approx. 0 ohms 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:07 PM

Page 10 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 11: Checking Signal Circuit 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured resistance within specifications? 

YES  

Go to "GROUND CIRCUIT INSPECTION" procedure. 

NO  

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

GROUND CIRCUIT INSPECTION 

1. Check for open in ground harness. 

1. Ignition "OFF"  

2. Disconnect Humidity Sensor.  

3. Measure resistance between terminal "2" of Humidity Sensor and terminal "11" of A/C Control 

Unit. 

Specification: Approx. 0 ohms 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:07 PM

Page 11 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 12: Checking Ground Circuit 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured resistance within specifications? 

YES  

Go to "COMPONENT INSPECTION" procedure. 

NO  

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

COMPONENT INSPECTION 

1. Check Humidity Sensor. 

1. Engine "ON"  

2. Connect Humidity Sensor.  

3. Measure Frequency between terminal 2 of Humidity sensor and chassis ground. 

Specification: Refer the specifications in Fig. 15. 

Fig. 13: Checking Frequency Between Terminal 2 Of Humidity Sensor And Chassis Ground

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:07 PM

Page 12 

© 2006 Mitchell Repair Information Company, LLC. 

Courtesy of KIA MOTORS AMERICA, INC.

Fig. 14: Identifying Blinking Pattern 
Courtesy of KIA MOTORS AMERICA, INC. 

Fig. 15: Frequency Graph 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured frequency within specifications in Fig. 15? (tolerance limits ± 5%) 

YES  

Go to step 2. 

NO  

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 3:56:07 PM

Page 13 

© 2006 Mitchell Repair Information Company, LLC.