Kia Sedona (2008 year). Manual - part 169

Fig. 114: Identifying Scan Tool Display - Actuation Test Of Outside Mirror Defogger 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Dose outside mirror defogger work properly? 

YES  

Go to step 2. 

NO  

Substitute with a known-good left outside mirror and check for proper operation. 

If the problem is corrected, replace left outside mirror and then go to "VERIFICATION OF 
VEHICLE REPAIR" procedure. 

2. Check DDM 

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

2. Ignition "ON" & engine "OFF"  

3. Substitute with a known-good DDM and Check if the DTC is erased.  

4. Is the DTC erased? 

YES  

Substitute with a known-good DDM and check for proper operation. 

If the problem is corrected, replace DDM and then go to "VERIFICATION OF VEHICLE 
REPAIR" procedure. 

NO  

Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:18 PM

Page 145 

© 2006 Mitchell Repair Information Company, LLC. 

or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE 
REPAIR" procedure. 

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC B1910. 

DTC B1954 SLIDE MOTOR OR SENSOR ERROR 

COMPONENT LOCATION 

Fig. 115: Locating IMS 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

Integrated Memory System (hereinafter referred to IMS) is a kind of convenience that memorize the fittest 
position of seat for driver, and restores it with just one memory switch. Equipment for Power seat adjusting 
beside Power seat ECU are input switch, four motors and sensors. According to input signal four motors adjusts 
horizontal position, inclination of the back of a seat, height of seat and position of brake pedal. Sensors for each 
motor detects position and delivers it to power seat ECU. 

DTC DESCRIPTION 

The ECM sets DTC B1954 if there's any fault in power seat slide sensor signal. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

Item

Detecting Condition

Possible Cause

DTC Strategy



Check no. of pulse  



Open or short in signal 
harness  



Open or short in power 
harness  

Enable Conditions



IGN `ON' & Engine `OFF' 
& slide s/w `ON'  

Threshold value



6 pulses in 2 sec  

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:18 PM

Page 146 

© 2006 Mitchell Repair Information Company, LLC. 

MONITOR DTC STATUS 

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

2. Ignition "ON" & engine "OFF".  

3. Select "Diagnostic Trouble Codes (DTCs)"mode and monitor "DTC Status" parameter.  

4. Is the DTC B1954 present? 

YES  

Go to TERMINAL AND CONNECTOR INSPECTION procedure. 

NO  

Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and 
ECM 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 VEHICLE REPAIR" procedure. 

NO  

Go to SIGNAL CIRCUIT INSPECTION procedure. 

SIGNAL CIRCUIT INSPECTION 

1. Check for open in harness 

1. Ignition "OFF".  

2. Measure resistance between terminal "11" of IMS and terminal "3" of power seat slide sensor. 

Detecting time



2 sec  



Faulty slide motor  



Faulty slide sensor  

FAIL SAFE

-

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:18 PM

Page 147 

© 2006 Mitchell Repair Information Company, LLC. 

Specification :Approx. 0 ohms 

Fig. 116: Measuring Resistance Between Terminal 11 Of IMS And Terminal 3 Of Power Seat 
Slide Sensor 
Courtesy of KIA MOTORS AMERICA, INC. 

3. 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 in harness 

1. Ignition "OFF".  

2. Disconnect power seat slide motor.  

3. Measure resistance between terminal "11" of IMS and chassis ground. 

Specification :Approx. infinity ohms 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:18 PM

Page 148 

© 2006 Mitchell Repair Information Company, LLC.