Kia Sedona (2008 year). Manual - part 138

Fig. 22: Rear Wiper And Washer - Flashing Pattern 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Functional diagram 

Fig. 23: Rear Wiper And Washer Functional Diagram 
Courtesy of KIA MOTORS AMERICA, INC. 

DEFOG 

This function controls the heating defog grids on windshield, rear glass, and rear view mirrors. 

1. Working Conditions 

The defog function can be activated only when engine is running and ignition key is in RUN position. 



When windshield defog switch is pushed, windshield defog is activated for 20 minutes.  



While windshield defog is on, the windshield defog button is illuminated  



If the switch is pushed again while defog is already active, defog stops.  

 

2008 Kia Sedona EX 

2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:19:16 PM

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

If the engine stops while defog is on, defog stops and it is NOT automatically turned on when the 
engine is started again  



Rear defog works exactly in the same way as windshield defog using the rear defog switch button 
as input.  



When rear defog is active, rear defog switch indicator is ON.  



Rear defog ctrl output controls rear glass defog as well as rear view mirrors defog.  

2. Rear defog pause 



When IPM receives Tailgate Flasher CAN message, rear defog is inhibited for 30s  



The 20min rear defog timer is frozen during this pause.  



If the user turns on rear defog function while this pause is going on, Rear defog Ctrl is set to ON 
only at the end of the pause.  



This pause has no impact on rear defog switch illumination.  



When IPM receives Tailgate open CAN message transition to OPEN value, this 30 s rear defog 
pause is also started, it works the same way as described above.  

Fig. 24: Rear Defog Flashing Pattern 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Functional Diagram 

 

2008 Kia Sedona EX 

2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:19:16 PM

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© 2006 Mitchell Repair Information Company, LLC. 

Fig. 25: Rear Defog Functional Diagram 
Courtesy of KIA MOTORS AMERICA, INC. 

COMFORT FUNCTION 

POWER WINDOWS 

1. The purpose of the power window function is to manage the driver and assist power window motors. This 

function is entirely implemented in the DDM and ADM (door modules) and DMS role for this function is 
limited to providing signals through the CAN bus.  

POWER SEAT WITH MEMORY INTERFACE 

This function manages the power seat and the associated memorized positions. This function is entirely 
implemented in the IMS (seat module) and DMS role for this function is limited to providing signals through 
the CAN bus. 

ADJUSTABLE PEDAL 

ADJUSTABLE PEDAL WITH MEMORY INTERFACE (IMS) 

1. This function is implemented by the IMS. This function adjusts the pedal position when the pedal 

backward/forward switch is pressed.  

2. Functional Diagram 

 

2008 Kia Sedona EX 

2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:19:16 PM

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© 2006 Mitchell Repair Information Company, LLC. 

Fig. 26: Adjustable Pedal Functional Diagram 
Courtesy of KIA MOTORS AMERICA, INC. 

ADJUSTABLE PEDAL (NON-IMS) 

1. Adjust Pedal allows to activate Adjustable Pedal feature for the non-IMS equipped vehicle, IPM needs to 

control the power source (by relay coil control) of the adjustable Pedal switch unit. 

There is no Adjustable Pedal switch for Non-IMS version. 

2. Functional Diagram 

Fig. 27: Adjustable Pedal (NON-IMS) Functional Diagram 
Courtesy of KIA MOTORS AMERICA, INC. 

REVERSE DRIVE EXTERIOR SIDE MIRROR 

This function is implemented by the DDM. This function turns the 2 external reverse mirrors down when gear 
box in reverse position. 

QUARTER GLASS OPEN/CLOSE 

1. Working Conditions 

 

2008 Kia Sedona EX 

2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 4:19:16 PM

Page 24 

© 2006 Mitchell Repair Information Company, LLC.