Hyundai Sonata: General Information / General Information
| General Information |
The supplemental restraint system (SRS) is designed to
supplement the seat belt to help reduce the risk or severity of injury
to the driver and passenger by activating and deploying the driver,
passenger, side airbag and belt pretensioner 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 contains the folded cushion assembled with
inflator unit ; side airbag modules located in the front seat contain
the folded cushion and an inflator unit ; 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 measure 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 sensors and
internal acceleration sensors inside of SRSCM. For side impact, SRSCM
will detect the side impact with 4 side impact sensors, 2 conventional
acceleration sensors in Center pillar inner locations and 2 pressure
sensing sensors in side of front door module, and internal acceleration
sensor inside of SRSCM.
SRSCM is designed to issue corresponding airbag module(s) deployment(s) using above described sensor inputs.
| 1. |
DC/DC converter : DC/DC converter in power supply unit
includes up/down transformer converter, and provides ignition voltage
for all firing circuits, implemented as ASICs and the internal operation
voltage of the SRSCM itself. 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 with 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 indicat to the driver that there is an SRS error. 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 active or if a crash is
recorded the fault clearing cannot be performed. |
| 6. |
Self diagnostic connector: Data stored in SRSCM memory will
be output to GDS or other external output devices through a connector
located below driver side crash pad. |
| 7. |
Once airbag is deployed, SRSCM should not be used again but replaced. |
| 8. |
SRSCM will determine whether passenger fasten the seat belt
by the signal from built-in switch in seat belt buckle, and deploy front
seat airbag at each set crash speed. |
| 9. |
Side airbag deployment will be determined by SRSCM that will
detect satellite sensor impact signal upon side crash, irrespective to
seat belt condition. |
Specifications
Specification
ItemResistance (?)Driver Airbag (DAB)2.0 ~ 6.0Passenger Airbag (PAB)1.6 ~ 6.0Side Airbag (SAB)1.6 ~ 6.0Curtain Airbag (CAB)1.6 ~ 6.0Knee Airbag (KAB)1.6 ~ 6.0Seat Belt Pretensioner ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Schematic Diagrams
Trouble Symptom Charts
Component Parts And Function Outline
Component partFunctionCruise Control SwitchInput the set speed and distance to the SCC ECU.Instrument ClusterDisplay various information inputted from SCC.Smart Cruise Control UnitRecognize and track the vehicle ahead.Calculate the targ ...
Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
Component Location
1. Back view camera2. AVN monitor
...
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