Kia Sportage: Seat Belt Buckle Switch (BS) | Passive Occupant Detection System (PODS)

Description and Operation

 Description

The SRSCM shall monitor the status of the driver and front passenger seat belt buckle. The SRSCM provides one pin each for the driver and front passenger seat belt buckle status input. The seat belt buckle circuit operates from internal boost voltage supplied by the SRSCM, and uses chassis ground for the signal return. The buckle status shall modify the SRSCM deployment. If the buckle status is unbuckled, the corresponding pretensioner will not be deactivated.

Components and Components Location

 Components

Repair procedures

Removal

1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work.

2. Remove the front seat assembly. (Refer to the Body group- Front seat)

3. Loosen the seat belt buckle mounting bolt and remove the seat belt buckle switch.

Installation

CAUTION

Be sure to install the harness wires not to be pinched or interfered with other parts.

1. Remove the ignition key from the vehicle.

2. Disconnect the battery negative cable, and wait for at least three minutes before beginning work.

3. Install the seat belt buckle switch.

Tightening Torque: 39.2 ~ 53.9 N.m (4.0 ~ 5.5 kgf.m, 28.9 ~ 39.8 lb-ft)

4. Install the front seat assembly. (Refer to the Body group-Front seat)

5. Reconnect the battery negative cable.

6. After installing the seat belt buckle switch, confirm proper system operation:

1. Тurn the ignition switch ON: the SRS indicator should be turned on for about six seconds and then go off.

Passive Occupant Detection System (PODS)

Description and Operation

 Description

The system is intended to classify the occupancy status of the front passenger seat in a motor vehicle based upon the measured force on the bottom seat cushion.

The system also communicates to the SRSCM whether to allow or inhibit the deployment of the passenger air bags and/or pretensioner based upon this status.

The System also measured dynamic responses of the occupant. This information is used to identify when a child seat is cinched down tightly with the seat belt, and to also determine if the seat is unoccupied.

However, the dynamic measurements are not intended, nor capable of monitoring the seating position of the occupant, nor can they determine the proximity of the occupant to the inflator modules.

The system should not be confused with an occupant position recognition system, or any other occupant proximity sensor.

The Passive Occupant Detection System (PODS) utilizes bladder placed between the passenger seat cushion and suspension to measure the occupant's loading force on the passenger seat. The sensor mat is connected to smart digital pressure sensor which is mounted under the seat pan. The quantitative force determined by the system is compared to a given threshold for determination of passenger airbag suppression.

Components and Components Location

 Components

1. Sensor mat
2. PODS Unit

Repair procedures

Removal

1. Disconnect the battery negative cable, and wait for at least three minutes before beginning work.

2. Remove the front passenger seat assembly. (Refer to the Body group - Seat)

3. Remove the seat cushion as an assembly. (Refer to the Body group - Seat)

Installation

1. Install the PODS equipped seat cushion assembly.

(Refer to the Body group - Seat)

2. Install the front passenger seat assembly.

(Refer to the Body group - seat)

3. Reconnect the battery negative cable.

4. After installing the PODS, confirm proper system operation:

1. Тurn the ignition switch ON: the SRS indicator should be turned on for about six seconds and then go off.

   Telltale lamp will nun on for 4 seconds and be turned off for 3 seconds. After the 7 seconds, it shall remain off if the PODS does not require suppression and the passenger airbag is enabled.

NOTE

Be sure to perform PODS reset with scan tool after replacing PODS equipped seat cushion.

 PODS Re-zero procedure

You should perform PODS Re-zero procedure after service or replacement about all part of the passenger seat.

1. Ignition "OFF", connect GDS.

2. Ignition "ON" & Engine "OFF", select Airbag system and "PODS Reset" mode.

3. The GDS will show the two PODS RESET function steps.

1. Erase PODS diagnostic codes.
2. PODS initialization.

CAUTION

This step must be done PODS re-zero, when the front passenger seat is empty.

4. Press the OK button to erase the PODS related diagnostic codes.

5. Press OK button to initialize the PODS.

CAUTION

This step must be done PODS re-zero, when the front passenger seat is empty.

6. The PODS initialization procedure will be performed.

7. Check PODS situation with selecting" Pass. Airbag Real time Info" after performing PODS Reset procedure.

8. Perform inspection with pressing OK button.

9. Finish the procedure with pressing cancel button if there is no problem after inspecting each status as below.

Schematic Diagrams

 Circuit Diagram (1)

 Circuit Diagram (2)

 Harness Connector

Connector A

1. Ignition
2. -
3. Airbag warning lamp
4. (1st stage) Driver airbag High
5. (1st stage) Driver airbag Low
6. -
7. -
8. Front impact sensor [Driver] High
9. CAN_High
10. -
11. -
12. Telltale warning lamp
13. (1st stage) Passenger airbag High
14. (1st stage) Passenger airbag Low
15. -
16. -
17. Front impact sensor [Driver] Low
18. CAN_Low
19. Ground
20. -
21. Crash Output
22. (2nd stage) Driver airbag High
23. (2nd stage) Driver airbag Low
24. -
25. -
26. Front impact sensor [Passenger] High
27. -
28. -
29. -
30. Seat belt reminder interface [Passenger]
31. (2nd stage) Passenger airbag High
32. (2nd stage) Passenger airbag Low
33. -
34. -
35. Front impact sensor [Passenger] Low
36. -

Connector B

1. Pressure side impact sensor [Driver] High
2. Side impact sensor [Driver] High
3. Seat belt pretensioner [Driver] High
4. Seat belt pretensioner [Driver] Low
5. Side airbag [Driver] High
6. Side airbag [Driver] Low
7. -
8. -
9. -
10. -
11. Pressure side impact sensor [Driver] Low
12. Side impact sensor [Driver] Low
13. Seat belt pretensioner [Passenger] High
14. Seat belt pretensioner [Passenger] Low
15. Side airbag [Passenger] High
16. Side airbag [Passenger] Low
17. -
18. -
19. -
20. -
21. Pressure side impact sensor [Passenger] High
22. Side impact sensor [Passenger] High
23. Curtain airbag [Driver] High
24. Curtain airbag [Driver] Low
25. Anchor pretensioner [Driver] High
26. Anchor pretensioner [Driver] Low
27. -
28. -
29. Seat buckle switch [Passenger] High
30. Seat buckle switch [Passenger] Low
31. Pressure side impact sensor [Passenger] Low
32. Side impact sensor [Passenger] Low
33. Curtain air bag [Passenger] High
34. Curtain airbag [Passenger] Low
35. Anchor pretensioner [Passenger] High
36. Anchor pretensioner [Passenger] Low
37. -
38. -
39. Seat buckle switch [Driver] High
40. Seat buckle switch [Driver] Low

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