Kia Sedona (2008 year). Instruction — 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

© 2006 Mitchell Repair Information Company, LLC.

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

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

Page 235

© 2006 Mitchell Repair Information Company, LLC.

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.