Kia Sedona (2008 year). Manual - part 179

Fig. 155: Measuring Waveform Between Terminal 7 Of IMS And Chassis Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured voltage within specifications? 

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 brake pedal sensor and then go to "VERIFICATION OF 
VEHICLE REPAIR" procedure. 

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC B1954. 

DTC B2115 REAR DEFOG RELAY FAILURE 

COMPONENT LOCATION 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 185 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 156: Identifying Rear Defogger Failure
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

RAM is a component of BCM that consists of DDM, ADM, IPM, FAM, IMS and cluster module. Each part of 
BCM is 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. RAM (Rear Area Module) set up at rear-left of passenger room controls various rear lamps (tail 
lamp, rear turn signal lamp, backup lamp, stop lamp, cabin lamp), window (sliding door power window, quarter 
glass, rear defogger), rear wiper and oil cap door. Received A/C control module rear defogger signal from IPM 
through CAN line, RAM controls rear defogger. 

DTC DESCRIPTION 

B2115 is set when open/short in rear defogger circuit or relay failure is detected. 

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.  

4. Is the DTC B2115 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 

Item

Detecting Condition

Possible Cause

DTC Strategy



Resistance check  



Open in power circuit  



RAM error  

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 4:19:19 PM

Page 186 

© 2006 Mitchell Repair Information Company, LLC. 

1. Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause 

various problems and damage of component.  

2. Check poor connection, bedding, corrosion, contamination, deformation of connector and it terminals.  

3. Is any problem found? 

YES  

Repair if necessary and go to "VERIFICATION OF VEHICLE REPAIR". 

NO  

Go to SIGNAL CIRCUIT INSPECTION. 

SIGNAL CIRCUIT INSPECTION 

1. Check open in power circuit 

1. Ignition "ON" & engine "OFF"  

2. Measure the resistance between rear defogger power circuit connector terminal at RAM side (BEC-

RR-8) and rear defogger (R06-1). 

Specification: 0 ohms 

Fig. 157: Measuring Resistance Between Rear Defogger Power Circuit Connector Terminal 
At RAM Side (BEC-RR-8) And Rear Defogger (R06-1) 
Courtesy of KIA MOTORS AMERICA, INC. 

3. Is the measured resistance within the specification? 

YES  

Go to step 2. 

NO  

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 187 

© 2006 Mitchell Repair Information Company, LLC. 

Repair open in power circuit and Go to "VERIFICATION OF VEHICLE REPAIR".

2. Check short in power circuit 

1. Ignition "ON" & engine "OFF"  

2. Disconnect rear defogger.  

3. Measure the resistance between rear defogger power circuit connector terminal at RAM side (BEC-

RR-8) and rear defogger (R06-1). 

Specification: infinity ohms 

Fig. 158: Measuring Resistance Between Rear Defogger Power Circuit Connector Terminal 
At RAM Side (BEC-RR-8) And Rear Defogger (R06-1) 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured resistance within the specification? 

YES  

Go to "COMPONENT INSPECTION". 

NO  

Repair open in power circuit and Go to "VERIFICATION OF VEHICLE REPAIR". 

COMPONENT INSPECTION 

1. Check rear defogger 

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

2. Ignition "ON" & engine "OFF"  

3. Check if DTC is erased after replacing defogger with "defogger for test".  

4. Is the DTC erased? 

YES  

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

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

Page 188 

© 2006 Mitchell Repair Information Company, LLC.