Kia Sedona (2008 year). Manual - part 65

Does Hi-Scan (Pro) indicate any DTC related to Side Impact Sensor (SIS)? 

YES  



Go to next step.  

NO  



Replace SIS.  

3. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN 

Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN. 

DTC B1412 SIDE IMPACT SENSOR [REAR-DRIVER] DEFECT; DTC B1413 SIDE IMPACT 
SENSOR [REAR-PASSENGER] DEFECT; DTC B1418 SIDE IMPACT SENSOR [REAR-DRIVER] 
COMMUNICATION ERROR; DTC B1419 SIDE IMPACT SENSOR [REAR-PASSENGER] 
COMMUNICATION ERROR 

DTC DESCRIPTION 

The detecting system for side crash consists of the SRSCM and four Side Impact Sensors (SIS). The SRSCM 
sets above DTC (s) if it detects that any SIS is defective or there is communication error between any SIS and 
the SRSCM. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

SCHEMATIC DIAGRAM 

DTC

Condition

Probable cause

B1412 
B1413 
B1418 
B1419



Open between SIS and SRSCM  



Side Impact Sensor (SIS) Malfunction  



SRSCM Malfunction  



Wiring Harness  



Side Impact Sensor (SIS)  



SRSCM  

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:01 PM

Page 63 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 56: Side Impact Sensor - Schematic Diagram 

TERMINAL & CONNECTOR INSPECTION 

Refer to TERMINAL & CONNECTOR INSPECTION. 

INSPECTION PROCEDURE 

1. PREPARATION 

Refer to PREPARATION OF INSPECTION. 

2. CHECK SIS CIRCUIT 

1. Measure resistance between the terminal 1 of rear SIS harness connector and the terminal 4 of front 

SIS harness connector.  

2. Measure resistance between the terminal 2 of rear SIS harness connector and the terminal 3 of front 

SIS harness connector. 

Specification (resistance): below 1 ohms

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:01 PM

Page 64 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 57: Checking SIS Circuit 

3. Is the measured resistance within specification? 

YES  



Check rear Side Impact Sensor.  

NO  



Repair or replace the wiring harness between the rear SIS and front SIS.  

3. CHECK THE SIDE IMPACT SENSOR 

1. Replace the Side Impact Sensor (SIS) with a new one. 



Refer to "SIDE IMPACT SENSOR (SIS) ".  

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 Side Impact Sensor (SIS)? 

YES  



Go to next step.  

NO  



Replace SIS.  

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 3:55:01 PM

Page 65 

© 2006 Mitchell Repair Information Company, LLC. 

DTC B1473 CURTAIN AIRBAG [FRONT-DRIVER] RESISTANCE TOO HIGH; DTC B1474 
CURTAIN AIRBAG [FRONT-DRIVER] RESISTANCE TOO LOW; DTC B1477 CURTAIN AIRBAG 
[FRONT-PASSENGER] RESISTANCE TOO HIGH; DTC B1478 CURTAIN AIRBAG [FRONT-
PASSENGER] RESISTANCE TOO LOW 

DTC DESCRIPTION 

The CAB squib circuit consists of the SRSCM and two Curtain Airbags (CAB). The above DTC is recorded 
when the CAB resistance too high or low is detected in the CAB squib circuit. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION 

SCHEMATIC DIAGRAM 

Fig. 58: Curtain Airbag - Schematic Diagram 

SPECIFICATION 

CAB resistance: 1.6-4.7 ohms 

DTC

Condition

Probable cause

B1473 
B1474 
B1477 
B1478



Too high or low resistance between CAB high (+) 
and CAB low (-)  



Curtain Airbag (CAB) Malfunction  



SRSCM Malfunction  



Open or short circuit on wiring 
harness  



Curtain Airbag (CAB) squib  



SRSCM  

 

2008 Kia Sedona EX 

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:55:01 PM

Page 66 

© 2006 Mitchell Repair Information Company, LLC.