Mazda CX-5 Service & Repair Manual: Passenger Side Air Bag Module [Two Step Deployment Control System]

Purpose

• When the passenger-side air bag module receives an impact from a frontal or frontal offset collision, the operation (deployment) of the air bag mediates the impact to the head and face of the front passenger.

Function

• When the passenger-side air bag module receives an impact from a frontal or frontal offset collision, the air bag is operated (deployed) by the operation signal sent from the SAS control module.

• A twin-bag type air bag has been adopted for the passenger-side air bag module.

• The twin bags protect occupants by the following operations:

• The head goes between the bags to softly restrain the face as a result of the low reaction force.

• Occupant shoulders are supported by the projection of the bag to restrain the upper body of the occupant.

Construction

• The passenger-side air bag module is installed to the instrument panel.

Operation

• The passenger-side air bag module operates (deploys) the air bag by activating the internal inflator.

• The inflator operates (deploys) in the following order:

Inflator No.1

1. When the driver-side air bag module receives an operation (deployment) signal from the SAS control module, the igniter built into inflator No.1 builds up heat and ignites the inflammation agent.

2. The ignition of the inflammation agent causes the combustion of a gas-generating agent which releases nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

Inflator No.2

1. When the driver-side air bag module receives an operation (deployment) signal from the SAS control module, the igniter built into inflator No.2 builds up heat and ignites the inflammation agent.

2. The ignition of the inflammation agent causes the combustion of a gas-generating agent which releases nitrogen gas.

3. The nitrogen gas is cooled at the filter and the filtrate is injected into the air bag.

Fail-safe

• Function not equipped.