id0810b4503100

Driver-side Knee Air Bag Module

Purpose

• When the vehicle receives an impact from a frontal or frontal offset collision, the driver-side knee air bag module operates (deploys) the air bag to mediate the impact to the legs of the driver.

Function

• When the vehicle receives an impact from a frontal or frontal offset collision, the driver-side knee air bag module operates (deploys) the air bag based on the operation signal sent from the SAS control module.

am3zzn00007538

Structure/construction

• The driver-side knee air bag module is located under the driver’s lower panel.

• The driver-side knee air bag module consists of the inflator and air bag.

• The inflator consists of the initiator, gas-generating agent, charged gas, closure discs, and diffuser.

am3zzn00007539

Operation

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

• The inflator operates in the following order:

1. When an operation (deployment) signal is received from the SAS control module, the initiator ignites.

2. The ignition of the initiator causes the combustion of the gas-generating agent which generates gas (1).

3. The generated burnt gas shatters closure disc A (2).

4. The burnt gas mixes with the charged gas (3) and shatters closure disc B (4).

5. The mixed gas passes through the diffuser and is injected into the air bag.

am3zzn00007540

Passenger-side Knee Air Bag Module

Purpose

• When the vehicle receives an impact from a frontal or frontal offset collision, the passenger-side knee air bag module operates (deploys) the air bag to mediate the impact to the legs of the front passenger.

Function

• When the vehicle receives an impact from a frontal or frontal offset collision, the passenger-side knee air bag module operates (deploys) the air bag based on the operation signal sent from the SAS control module.

am3zzn00007541

Structure/construction

• The passenger-side knee air bag module is located under the dashboard.

• The passenger-side knee air bag module consists of the inflator and air bag.

• The inflator consists of the initiator, gas-generating agent, charged gas, closure discs, and diffuser.

am3zzn00007542

Operation

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

• The inflator operates in the following order:

1. When an operation (deployment) signal is received from the SAS control module, the initiator ignites.

2. The ignition of the initiator causes the combustion of the gas-generating agent which generates gas (1).

3. The generated burnt gas shatters closure disc A (2).

4. The burnt gas mixes with the charged gas (3) and shatters closure disc B (4).

5. The mixed gas passes through the diffuser and is injected into the air bag.

am3zzn00007540