Hyundai Elantra (CN7): SRSCM / Seat Belt Buckle Switch (BS)

Hyundai Elantra (CN7) 2021-2025 Service Manual / Restraint / SRSCM / Seat Belt Buckle Switch (BS)

Description and operation

Description

•	The SRSCM should detect the condition of seat belt buckles (BS) of the driver and passenger seats.

•	The SRSCM provides two pins to each side, in order to enter the condition of seat belt buckles (BS) of the driver and passenger seats.

•	The seat belt buckle circuit is operated using internal boost voltage supplied by the SRSCM, and uses body ground for signal return.

Components and components location

Components

1. Seat belt buckle switch (BS)

Repair procedures

Removal

Disconnect the negative (-) battery terminal.

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

2.	Remove the front seat assembly. (Refer to Body (Interior and Exterior) - "Front Seat Assembly")

3.	Disconnect the front seat belt buckle connector wiring (A).

Remove the front seat belt buckle (A) after loosening the monuting bolt.

Tightening torque :

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

To install, reverse the removal procedures.

•	Replace damaged clip.

•	Assemble the connector securely.

•	When the ignition switch is turned on after installing the airbag, check that the warning light turns on for about 6 seconds and then goes out.

❮Side Impact Sensor (SIS)

Description and operation Description• Side Impact Sensors (SIS), each installed on the center part of the right and left front door modules and the right and left center pillars, detects side impact during collision.

Occupant Classification System(OCS)❯

Description and operation Description1.In order to make normal activation of airbag system, SRSCM detects DTC(s) for the Occupant Classification System (OCS).

Other information:

Hyundai Elantra (CN7) 2021-2025 Service Manual: Specifications

Hyundai Elantra (CN7) 2021-2025 Service Manual: Troubleshooting

TroubleshootingDiagnosis with Diagnostic tool1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).The diagnostic system (Diagnostic tool) provides the following information.1)Fault Code Searching : Checking failure and code number (DTC)2)Data Analysis : Checking the system input/