Kia Sedona (2008 year). Instruction — part 228

4. Is the measured resistance within specifications?

YES

Go to "POWER CIRCUIT INSPECTION" procedure.

NO

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

POWER SUPPLY CIRCUIT INSPECTION

1. Check for short or short in harness.

1. Ignition "ON"

2. Connect Driver Direction potentiometer.

3. Measure voltage between terminal "5" of Driver Direction potentiometer and chassis ground.

Specification: Approx. 5V

Fig. 39: Checking Voltage Between Terminals Of Driver Direction Potentiometer And
Chassis Ground
Courtesy of KIA MOTORS AMERICA, INC.

4. Is the measured voltage within specifications?

YES

Go to "COMPONENT INSPECTION" procedure.

NO

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

COMPONENT INSPECTION

2008 Kia Sedona EX

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

Microsoft

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

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© 2006 Mitchell Repair Information Company, LLC.

1. Check actuator.

1. Ignition "OFF"

2. Disconnect Driver Direction potentiometer.

3. Verify that the mode actuator operates to the vent mode when connecting 12V to the terminal "3"

and grounding terminal "4".

4. Verify that the mode actuator operates to the def mode when the connections are reversed.

Fig. 40: 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

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 Driver Direction potentiometer.

3. Measure voltage between terminal "6" and "7" of Driver Direction potentiometer as the mode

switch is operated.

Specification: Refer to DOOR POSITION CHART

2008 Kia Sedona EX

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

Microsoft

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

Page 35

© 2006 Mitchell Repair Information Company, LLC.

Fig. 41: Checking Voltage Between Terminals And Of Driver Direction Potentiometer
Courtesy of KIA MOTORS AMERICA, INC.

DOOR POSITION CHART

Fig. 42: 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.

Door position

Voltage (6-7)

Error detecting

VENT

0.3 ± 0.15V

Under voltage: 0.08V or

less

Over voltage: 4.92V or

more

BI-LEVEL (1)

1.35 ± 0.4V

BI-LEVEL (2)

2.25 ± 0.4V

FLOOR

3.0 ± 0.4V

MIX

3.6 ± 0.4V

DEF

4.7 ± 0.15V

2008 Kia Sedona EX

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

Microsoft

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

Page 36

© 2006 Mitchell Repair Information Company, LLC.

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,
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 B1207 DIRECTION POTENTIOMETER SHORT (HIGH) - PASSENGER

COMPONENT LOCATION

Fig. 43: Identifying Temp Control Actuator (Passenger) Component Location
Courtesy of KIA MOTORS AMERICA, INC.

GENERAL DESCRIPTION

Refer to DTC B1206.

2008 Kia Sedona EX

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

Microsoft

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

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© 2006 Mitchell Repair Information Company, LLC.