Kia Sedona: General Information

Third generation YP (2014-2024) / Kia Sedona YP Service Manual / Restraint / General Information

General

The supplemental restraint system (SRS) is designed to supplement the seat belts to help reduce the risk or severity of injury to the driver and passengers by activating and deploying the driver, passenger, side airbags and belt pretensioners in certain frontal or side collisions.

The SRS (Airbag) consists of : a driver side airbag module located in the center of the steering wheel, which contains the folded cushion and an inflator unit ; a passenger side airbag module located in the passenger side crash pad which contains the folded cushion assembled with inflator unit ; side airbag modules located in the front seat which contain folded cushions and inflator units ; curtain airbag modules located inside of the headliner which contains folded cushions and inflator units. The impact sensing function of the SRSCM is carried out by electronic accelerometer that continuously measures the vehicle’s acceleration and delivers a corresponding signal through amplifying and filtering circuitry to the microprocessor.

SRSCM (SRS Control Module)

SRSCM will detect front impact with front impact sensor, and side impact with side impact sensor, to determine airbag module deployment.

DC/DC converter: DC/DC converter in power supply unit includes up/down transformer converter, and provide ignition voltage for 2 front airbag ignition circuits and the internal operation voltage of the SRSCM. If the internal operation voltage is below critical value setting, it will perform resetting.

2.	Back up power supply: SRSCM has separate back up power supply, that will supply deployment energy instantly in low voltage condition or upon power failure by front crash.

3.	Self diagnosis: SRSCM will constantly monitor current SRS operation status and detect system failure while vehicle power supply is on. System failure may be checked by trouble codes using GDS.

4.	Airbag warning lamp on: Upon detecting error, the module will transmit signal to SRSCM indicator lamp located at cluster. MIL lamp will notify of SRS error to the driver. Upon ignition key on, SRS lamp will turn on for about six seconds.

5.	Trouble code registration: Upon error occurrence in system, SRSCM will store DTC corresponding to the error. DTC can be cleared only by GDS. However, if an internal fault code is logged or if a crash is recorded, the fault code(s) cannot be cleared.

6.	Self diagnostic connector: Data stored in SRSCM memory will be output to GDS or other external output devices through connector located below driver side crash pad.

7.	Once airbag has been deployed, the SRSCM should not be used again and should be replaced.

8.	SRSCM will determine whether or not the passenger is wearing the seat belt by examining the signal from built-in switch on the seat belt buckle, and then deploy front seat airbag at each set of crash speed.

9.	Side airbag deployment will be determined by SRSCM after detecting satellite sensor impact signal upon a side crash, regardless of the seat belt condition.

10.	SRSCM senses the vehicle rollover by using the rollover sensor. SAB, CAB, and BPT will be able to expand if mechanic moves the SRSCM during IGN On state. For this reason, disconnect the battery negative cable when repairing the SRSCM.

11.	Check for the normal operation of SRSCM after repair procedure.

Restraint

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Specifications

Tightening Torque ItemN.mkgf.mlb-ftPassenger airbag(PAB)7.8 ~ 11.80.8 ~ 1.25.8 ~ 8.7Curtain airbag (CAB)Bolt7.8 ~ 10.80.8 ~ 1.25.8 ~ 8.7Nut3.9 ~ 5.90.4 ~ 0.62.9 ~ 4.3Seat Belt Anchor Bolt39.2 ~ 5 ...

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Kia Sedona: General Information

Restraint

Specifications

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