Kia Sedona (2008 year). Manual - part 171

Fig. 122: Measuring Waveform Between Terminal 11 Of IMS And Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

Fig. 123: Identifying Waveform 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured voltage within specifications in Fig. 123? 

YES  

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. 

NO  

Substitute with a known-good power seat slide sensor and check for proper operation. If the 
problem is corrected, replace power seat slide sensor and then go to "VERIFICATION OF 
VEHICLE REPAIR" procedure. 

VERIFICATION OF VEHICLE REPAIR 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 153 

© 2006 Mitchell Repair Information Company, LLC. 

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 B1955 RECLINE MOTOR OR SENSOR ERROR 

COMPONENT LOCATION 

Refer to DTC B1954. 

GENERAL DESCRIPTION 

Refer to DTC B1954. 

DTC DESCRIPTION 

The ECM sets DTC B1955 if there's any fault in power seat recline sensor signal. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

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.  

Item

Detecting Condition

Possible Cause

DTC Strategy



Check no. of pulse  



Open or short in signal harness  



Open or short in power harness  



Faulty recline motor  



Faulty recline sensor  

Enable Conditions



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

Threshold value



6 pulses in 2 sec  

Detecting time



2 sec  

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 154 

© 2006 Mitchell Repair Information Company, LLC. 

4. Is the DTC B1955 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 

Refer to DTC B1954. 

SIGNAL CIRCUIT INSPECTION 

1. Check for open in harness 

1. Ignition "OFF".  

2. Measure resistance between terminal "29" of IMS and terminal "3" of power seat recline sensor. 

Specification :Approx. 0 ohms 

Fig. 124: Measuring Resistance Between Terminal 29 Of IMS And Terminal 3 Of Power Seat 
Recline Sensor 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Is the measured resistance within specifications? 

YES  

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 155 

© 2006 Mitchell Repair Information Company, LLC. 

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 recline motor.  

3. Measure resistance between terminal "29" of IMS and chassis ground. 

Specification :Approx. infinity ohms 

Fig. 125: Measuring Resistance Between Terminal 29 Of IMS And Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured resistance within specifications? 

YES  

Go to "POWER CIRCUIT INSPECTION" procedure. 

NO  

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

POWER SUPPLY CIRCUIT INSPECTION 

MOTOR POWER CIRCUIT INSPECTION 

1. Check for open in harness 

1. Ignition "OFF"  

2. Disconnect power seat recline motor. 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 156 

© 2006 Mitchell Repair Information Company, LLC.