Hyundai Accent: General Information
Hyundai Accent RB (2010-2018) Service Manual / Restraint (Advanced) / General Information / General Information
General
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 and side impact with impact sensors, and
determine airbag module deployment.
| 1. |
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 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 indicate the driver of 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 logged or if a crash is recorded,
the fault code will not clear.
|
| 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 is deployed, SRSCM can not be reused ; must be replaced.
|
| 8. |
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
Item
Resistance (Ω)
Driver Airbag (DAB)
1.7 ~ 2.3
Passenger Airbag (PAB)
1.7 ~ 2.3
...
See also:
Starting the engine
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brake, accelerator pedal, a ...
Inspection
1.
Check signal waveform of CKPS and CMPS using a GDS.
Specification:
Refer to “Waveform”
...
Description and Operation
OBD-II review
1. Overview
The California Air Resources Board (CARB) began regulation
of On Board Diagnostics (OBD) for vehicles sold in California beginning with
the 1988 model year. Th ...
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