Sebring Sedan V6-3.5L (2009)
The PAB connects to the bottom of the instrument panel top pad by 10 hooks (1) that slip into the loops that are integral to the top pad. The top pad must
be removed to free the PAB from the loops.
The bottom of the PAB houses the inflater (2). It is attached to the PAB by four nuts (1) and contains the two squib connectors (3) which connect the
PAB to the vehicle electrical system through the instrument panel wire harness.
Following a PAB deployment, the PAB and the PAB cover must be replaced. The PAB cannot be repaired, and must be replaced if deployed or in any
way damaged.
Passenger Air Bag - Operation
OPERATION
The multistage Passenger Airbag (PAB) is deployed by electrical signals generated by the Occupant Restraint Controller (ORC) through the PAB squib
1 and squib 2 circuits to the two initiators in the airbag inflator. By using two initiators, the PAB can be deployed at multiple levels of force. The force
level is controlled by the ORC to suit the monitored impact conditions by providing one of several delay intervals between the electrical signals provided
to the two initiators. The longer the delay between these signals, the less forcefully the PAB will deploy.
When the ORC sends the proper electrical signals to each initiator, the electrical energy generates enough heat to initiate a small pyrotechnic charge
which, in turn ignites chemical pellets within the inflator. Once ignited, these chemical pellets burn rapidly and produce a large quantity of inert gas. The
inflator is sealed to the airbag cushion and a diffuser in the inflator directs all of the inert gas into the airbag cushion, causing the cushion to inflate. As
the cushion inflates, the PAB door will split at predetermined tear seam lines concealed on the inside surface of the door, then the door will pivot up over
the top of the instrument panel and out of the way. Following an airbag deployment, the airbag cushion quickly deflates by venting the inert gas through
a vent hole in each fabric side panel of the airbag cushion.
Typically, both initiators are used during an airbag deployment event. However, it is possible for only one initiator to be used during a deployment due to
an airbag system fault; therefore, it is necessary to always confirm that both initiators have been used in order to avoid the improper disposal of
potentially live pyrotechnic materials. See: Service and Repair.
Proper diagnosis of the PAB inflator and the PAB squib circuits requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic
