SUPPLEMENTARY RESTRAINT SYSTEM (SRS)
15
ON VEHICLE SERVICE
!! WARNING
Always work on the air bag module from the side.
Always carry the module with the cover side
uppermost or away from the body in case being
carried vertically. Do not attempt to repair, open or
apply power (Multimeter) to the air bag module
terminals.
! CAUTION
Disconnect the battery negative lead.
REMOVAL
1. Disconnect the battery connections.
2. Remove lower nacelle assembly. ( For removal
refer Body section )
3. Rotate steering wheel in 90 degree clockwise
direction, insert screw driver from bottom cover
to disengage DAB snap, rotate steering wheel
in 90 degree anticlockwise direction, insert
screw driver from bottom cover to disengage
DAB 2nd snap.
4. Disconnect the DAB connector from clock
spring and disconnect the horn pad connection
and take out the DAB assembly from the
vehicle.
FITMENT
For fitment follow reverse procedure of removal.
NTE
After fitment connect the diagnostic tool and clear
all fault codes if any.
B. PASSENGER AIRBAG (PAB)
The passenger airbag module is located below the
dashboard; above the glove box and its functioning
is controlled by the SRS ECU. A bag within the
module inflates to protect the passenger in the
event of a collision severe enough to deploy the
system.
Within the passenger airbag module is a squib
which, when given the correct current by the SRS
ECU, inflates the airbag by initiating a chemical
reaction. In deployment, the airbag inflates within a
fraction of a second and then deflates at a
controlled rate as the passenger body regions;
typically head and chest interact with airbag. Vents
in the airbag control its deflation.
The SRS ECU regularly applies a test current to
the passenger airbag squib to confirm continuity of
the ignition circuitry.