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SUPPLEMENTARY RESTRAINT SYSTEM (SRS)
1
Inspection, repair and replacement required in SRS system after accident
1. The complete airbag system consists of fol-
lowing components. Those cannot be ser-
viced/repaired, hence should be replaced in
case of any damage/deployment.
a) Driver airbag
b) Passenger airbag
c) Seat belt assembly
d) Front impact sensors
e) Side impact sensors
f) Side airbags
g) Side Curtain airbags (Inflatable Curtains)
h) Wiring harnesses
i) SRS ECU
j) Clock spring
k) Passenger airbag deactivation switch
2. If Frontal Airbags, seat belt pretensioners are
deployed during collision, following compo-
nents must be replaced.
a) Driver airbag
b) Passenger airbag
c) Front Seat belt assembly RH & LH
d) Front impact sensors -LH & RH
e) Cockpit (with PAB provision & wiring har-
ness)
f) Wiring harness
g) SRS ECU
h) Clock spring
3. If Side Airbags, curtain airbags are deployed
during collision, following components must
be replaced.
a) Deployed Side airbag(s)
b) Deployed Curtain Airbag(s)
c) Front Seat belt assembly for the side(s) that
deployed
d) Side impact sensor(s) for the side that de-
ployed
e) SRS ECU
f) Wiring harness
4. In case of Curtain Airbag deployment follow-
ing components also needs to be replaced.
a) Roof trim
b) A –pillar trim
c) B – pillar upper and lower trims
d) C – pillar trim
e) Rear grab handle
f) Front grab handle
g) All related trim clips
h) Sun visor
5.
After any type of vehicle accident, thoroughly
inspect all the airbag system components for any
damage or deformation. Replace components as
required. Thorough inspection of their mounting
locations is also strongly recommended after any
accident.
6.
If any damage or deformation is observed on any
airbag system components, these components
MUST be replaced
even if they are not deployed/
fired in the accident and are showing healthy sta-
tus when checked.
7.
Special attention should be paid to mounting sur-
faces and mounting brackets mainly for SRS
ECU, Front impact sensors and Side impact sen-
sors as they are extremely critical for perfor-
mance of the system. If these cannot be repaired
to their original condition, the original panel(s)
MUST be replaced
.
8.
In case of damage to SRS wiring harness/wires,
they must not be repaired but replaced.
9.
If steering wheel and steering column are de-
formed or if the steering column is collapsed in an
accident replace these components.
10.
The accident Vehicle should be inspected to iden-
tify component deformation or structural defor-
mations, damages for repair or replacement. e.g.
Vehicle front, side, rear structure, seats, under-
body components etc.
11.
Check for DTC’s using diagnostic tool and trou-
bleshoot to clear all the DTC’s detected.