Kia Sedona (2008 year). Instruction — part 258

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

Refer to DTC B1249.

VERIFICATION OF VEHICLE REPAIR

Refer to DTC B1249.

DTC B2411 DIRECTION CONTROL MOTOR (REAR)

COMPONENT LOCATION

Fig. 173: Identifying Mode Control Actuator Component Location
Courtesy of KIA MOTORS AMERICA, INC.

GENERAL DESCRIPTION

The mode control actuator mounted on heater unit, adjusts position of mode door by operating Direction Motor
based on signal of A/C control unit. Pressing mode select switch makes the mode control actuator shift in order
of vent --> B/L --> floor --> mix.

DTC DESCRIPTION

The A/C controller sets DTC B2411 if the direction motor doesn't move to intended position within 40 sec (In
this case, A/C controller try to move mode door for 2 sec. 3 times, every 20 sec. before setting DTC).

DTC DETECTING CONDITION

2008 Kia Sedona EX

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

Microsoft

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DTC DETECTING CONDITION CHART

SPECIFICATION

Fig. 174: Output Voltage Graph
Courtesy of KIA MOTORS AMERICA, INC.

MONITOR SCAN TOOL DATA

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

2. Engine "ON"

3. Monitor the "DIRECTION POTENTIO" parameter on the scan tool while operating mode switch.

Item

Detecting Condition

Possible cause

DTC Strategy



Voltage check



Poor connection of connected part



Open circuit in harness



Short circuit in harness



Faulty driver direction potentiometer



Fault A/C Control Unit.

Threshold value



< 0.1V

Detecting time



0.3 sec

FAIL SAFE

-

2008 Kia Sedona EX

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

Microsoft

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

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© 2006 Mitchell Repair Information Company, LLC.

Fig. 175: Diagnosis Function Screen Display - Direction Potentiometer Rear
Courtesy of KIA MOTORS AMERICA, INC.

4. Are the DTC B2411 present and is parameter of "Rear DIRECTION POTENTIO." fixed?

There is any fault in Rear Direction Motor. If the parameter of "Rear DIRECTION POTENTIO." is 10%
or less on "VENT" mode, or If the parameter is 90% or more on "DEF" mode.

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?

2008 Kia Sedona EX

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

Microsoft

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

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© 2006 Mitchell Repair Information Company, LLC.

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 Rear mode Actuator.

3. Measure resistance between terminal "3, 4" of Rear Direction Motor and terminal "8, 9" of A/C

control unit.

Specification: Approx. 0 ohms

Fig. 176: Checking Resistance Between Terminal "3, 4" Of Rear Direction Motor And
Terminal "8, 9" Of A/C Control Unit
Courtesy of KIA MOTORS AMERICA, INC.

4. Is the measured resistance within specifications?

YES

Go to step 2.

NO

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

2. Check for short to ground in harness.

2008 Kia Sedona EX

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

Microsoft

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

Page 157

© 2006 Mitchell Repair Information Company, LLC.