Kia Sedona (2008 year). Manual - part 158

REPAIR" procedure. 

NO  

Go to step 2. 

2. Check IPM 

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

2. Ignition "ON" & engine "OFF".  

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

4. Is the DTC erased? 

YES  

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

If the problem is corrected, replace IPM 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 B1102. 

DTC B1612 LOST COMMUNICATION WITH RAM, BUS FAILURE 

COMPONENT LOCATION 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:17 PM

Page 101 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 81: Locating IPM & RAM 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

Refer to DTC B1602. 

DTC DESCRIPTION 

The ECM sets DTC B1612 if RAM haven't transmitted DATA for 10sec in normal CAN communicating. 

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 (DTC s)" mode and monitor "DTC Status" parameter.  

4. Is the DTC B1612 present? 

YES  

Go to TERMINAL AND CONNECTOR INSPECTION procedure.

Item

Detecting Condition

Possible Cause

DTC Strategy

-



Faulty IPM  



Open/short in RAM power 
harness  



Faulty RAM  



Poor connection of 
connected part  

Enable Conditions

-

Threshold value

-

Detecting time

-

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:17 PM

Page 102 

© 2006 Mitchell Repair Information Company, LLC. 

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 B1102. 

SIGNAL CIRCUIT INSPECTION 

Refer to DTC B1605. 

POWER SUPPLY CIRCUIT INSPECTION 

1. Check for open or short in power harness 

1. Ignition "OFF".  

2. Connect FAM  

3. Measure voltage value between terminal "BEC-RF-8, 40" of FAM and chassis ground. 

Specification: 9-16V 

Fig. 82: Measuring Voltage Value Between Terminal BEC-RF-8, 40 Of FAM And Chassis 
Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is the measured voltage within specifications? 

YES  

Go to "COMPONENT INSPECTION" procedure.

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:17 PM

Page 103 

© 2006 Mitchell Repair Information Company, LLC. 

NO  

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

COMPONENT INSPECTION 

1. Check RAM 

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

2. Ignition "ON" & engine "OFF".  

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

4. Is the DTC erased? 

YES  

Substitute with a known-good RAM 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 IPM 

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

2. Ignition "ON" & engine "OFF".  

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

4. Is the DTC erased? 

YES  

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

If the problem is corrected, replace IPM 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. 

 

2008 Kia Sedona EX 

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

  

Microsoft 

 

Monday, May 24, 2010 4:19:17 PM

Page 104 

© 2006 Mitchell Repair Information Company, LLC.