Kia Sedona (2008 year). Manual - part 73

Fig. 86: Checking Short To Ground 

2. Is the measured resistance within specification? 

YES  



Check the CAB Module.  

NO  



Repair or replace the wiring harness between the CAB and the SRSCM.  

3. CHECK THE CAB MODULE 

1. Replace the Curtain Airbag (CAB) with a new one. 



Refer to AIR BAG MODULE (CURTAIN AIR BAG) .  

2. Install the DAB module and connect the DAB connector.  

3. Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.  

4. Connect the SRSCM connector.  

5. Connect the battery negative cable to the battery.  

6. Connect a Hi-Scan (Pro) to the data link connector.  

7. Turn the ignition switch to ON and check the vehicle again. 

Does Hi-Scan (Pro) indicate any DTC related to Curtain Airbag (CAB)? 

YES  



Go to next step.  

NO  



Replace CAB module.  

4. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN 

Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN.

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:02 PM

Page 95 

© 2006 Mitchell Repair Information Company, LLC. 

DTC B1725 CURTAIN AIRBAG [REAR-DRIVER] CIRCUIT SHORT TO BATTERY; DTC B1729 
CURTAIN AIRBAG [REAR-PASSENGER] CIRCUIT SHORT TO BATTERY 

DTC DESCRIPTION 

The CAB squib circuit consists of the SRSCM and CAB. The above DTC is recorded when short to battery is 
detected in the CAB squib circuit. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

SCHEMATIC DIAGRAM 

Fig. 87: Curtain Airbag - Schematic Diagram 

TERMINAL & CONNECTOR INSPECTION 

Refer to TERMINAL & CONNECTOR INSPECTION. 

INSPECTION PROCEDURE 

DTC

Condition

Probable cause

B1725 
B1729



Short to battery between CAB and 
SRSCM  



Curtain Airbag (CAB) Malfunction  



SRSCM Malfunction  



Short to battery line circuit on wiring 
harness  



Curtain Airbag (CAB) squib  



SRSCM  

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:02 PM

Page 96 

© 2006 Mitchell Repair Information Company, LLC. 

1. PREPARATION 

Refer to PREPARATION OF INSPECTION. 

2. CHECK SHORT TO BATTERY LINE 

1. Connect the battery negative cable to the battery.  

2. Turn the ignition switch to ON.  

3. Measure voltage between the terminal 1 of CAB harness connector and chassis ground. 

Specification (voltage): Approximately 0 V 

Fig. 88: Checking Short To Battery Line 

4. Is the measured voltage within specification? 

YES  



Check the CAB Module.  

NO  



Repair the short to battery line circuit on wiring harness between the CAB and the SRSCM.  

3. CHECK THE CAB MODULE 

1. Replace the Curtain Airbag (CAB) with a new one. 



Refer to AIR BAG MODULE (CURTAIN AIR BAG) .  

2. Install the DAB module and connect the DAB connector.  

3. Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.  

4. Connect the SRSCM connector.  

5. Connect the battery negative cable to the battery.  

6. Connect a Hi-Scan (Pro) to the data link connector.  

7. Turn the ignition switch to ON and check the vehicle again. 

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:02 PM

Page 97 

© 2006 Mitchell Repair Information Company, LLC. 

Does Hi-Scan (Pro) indicate any DTC related to Curtain Airbag (CAB)? 

YES  



Go to next step.  

NO  



Replace CAB module.  

4. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN 

Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN. 

DTC B2500 SRS WARNING LAMP FAULT 

DTC DESCRIPTION 

The SRS warning lamp is located in the cluster. When the airbag system is normal, the SRS warning lamp turns 
on for approx. 6 seconds after the ignition switch is turned to ON, and then turns off automatically. If there is a 
malfunction in the airbag system, the SRS warning lamp lights up to inform the driver of the abnormality. The 
SRSCM shall measure the voltage at the SRS warning lamp output pin, both when the lamp is on and when the 
lamp is off, to detect whether the commanded state matches the actual state. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

SCHEMATIC DIAGRAM 

DTC

Condition

Probable cause

B2500



Airbag fuse  



Warning Lamp Bulb  



Open between warning lamp and SRSCM  



Short to ground or battery line between the warning lamp and 
SRSCM  



SRSCM Malfunction  



Fuse  



Warning lamp 
bulb  



Wiring Harness  



SRSCM  

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:02 PM

Page 98 

© 2006 Mitchell Repair Information Company, LLC.