Kia Sedona (2008 year). Manual - part 191

Fig. 194: Measuring Resistance Between Terminal 1 Of Brake Pedal Motor And Terminal 27 
Of IMS 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Is the measured resistance within specifications? 

YES  

Go to step 2. 

NO  

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

2. Check for short in harness 

1. Ignition "OFF"  

2. Disconnect brake pedal motor.  

3. Measure resistance between terminal "6" of IMS and chassis ground. 

Specification :Approx. infinity ohms 

Fig. 195: Measuring Resistance Between Terminal 6 Of IMS And Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC.

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 233 

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4. Is the measured resistance within specifications? 

YES  

Go to "COMPONENT INSPECTION" procedure. 

NO  

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

COMPONENT INSPECTION 

1. Check IMS 

1. Ignition "OFF".  

2. Measure voltage between terminal "6" of IMS and chassis ground. 

Specification: 5V 

Fig. 196: Measuring Voltage Between Terminal 6 Of IMS And Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Is the measured voltage within specifications? 

YES  

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

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

NO  

Go to step 2. 

2. Check pedal motor/sensor 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:20 PM

Page 234 

© 2006 Mitchell Repair Information Company, LLC. 

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

2. Ignition "ON" & engine "OFF"  

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

4. Is the DTC erased? 

YES  

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

NO  

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. 

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC B1954. 

DTC B2521 STOP LAMP OPEN CIRCUIT OR FUSE FAILURE 

COMPONENT LOCATION 

Fig. 197: Identifying FAM, BCM-FE FAM & BCM-FC FAM 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

RAM is a part of BCM with DDM, ADM, IPM, RAM, IMS and Cluster module. Each part of BCM is 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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connected to one another through CAN communication line for efficient communication. Those modules 
control front/rear, driver/passenger seat, cluster with electrical signal and they share information with other 
modules. FAM (Front Area Module) set up at engine room controls various lamps (fog lamp, headlamp, stop 
lamp, turn signal lamp), wiper and performs system error checking as well. the power of stop lamp is supplied 
from the power line through FAM-->stop lamp-->RAM-->lamp in sequence. Controlling stop lamp is 
performed at FAM and RAM. FAM transfers power from "HOT AT ALL TIMES power circuit" to stop lamp 
switch and via RAM, this power is supplied to stop lamp. Furthermore, RAM senses stop lamp circuit error as 
well. 

DTC DESCRIPTION 

The ECM sets DTC B2521 if open in stop lamp circuit is detected between "HOT AT ALL TIMES power 
circuit" and FAM. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

MONITOR DTC STATUS 

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

2. Ignition "ON" & engine "OFF" & FAM: "ON".  

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

Fig. 198: Identifying Scan Tool Display - Diagnostic Trouble Codes 
Courtesy of KIA MOTORS AMERICA, INC.

Item

Detecting Condition

Possible Cause

DTC Strategy



Resistance check  



Open in power circuit  



RAM failure  

Enable Conditions



IGN: ON, ENG: OFF  

Threshold value



infinity ohms  

Detecting time

-

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:20 PM

Page 236 

© 2006 Mitchell Repair Information Company, LLC.