Workshop Manuals Factory service & repair Aston Martin
01 00 Introduction02 01 Body system03 02 Frame and mounting04 03 Engine05 04 Suspension06 05 Driveline07 06 Brake system08 07 Transmission09 08 Clutch10 09 Exhaust11 10 Fuel12 11 Steering13 12 Climate control14 13 Information, gauge and warning15 14 Power supply16 15 Vehicle entertainment17 16 Vacuum distribution18 17 Lighting19 18 Electric distribution and electronic control20 19 Electronic features21 20 Appendix and glossary
Aston Martin DB9 Factory Workshop Manual (Issue 2, 2005)02 · 01 Body system
02 · Body & interior

Impact Sensors

Make
Aston Martin
Model
DB9 Factory Workshop Manual
Year
Issue 2, 2005
Section
Restraining Devices › Impact Sensors
01 Body systemImpact Sensors

The primary purpose of the RCM is to discriminate between an event that warrants an airbag system deployment and an event that does not. The RCM governs the operation of the whole system and performs continual system diagnostics. Information on the severity of an impact is received from the impact sensors.

Variations in the deployment of the front airbag modules are dependent on the status of the front safety belt buckles.

Impact Sensors

Side Impact - Side impact sensors are mounted to the base of each B-pillar. In the event of a side impact, the RCM processes the impact data sent by the side impact sensor against stored data. The RCM will deploy both side impact airbags dependant on seat belt buckle status.

Front Impact

Front impact sensors (x2) are located under the grill opening panel.

The SRS module processes the impact data sent by the front impact sensor against stored data, and deploys the front airbags, and the seat belt pre-tensioners.

Diagram showing the driver's airbag module removed from the steering wheel with associated bolts and wiring harness plug visible.

Specifications

Torque Figures
DescriptionNmlb. / ft.
Drive Airbag8-106-7.5
Passenger Airbag11.58.5
Side Airbag107.5

Maintenance

Driver Airbag

Repair Operation Time (ROT)
ItemCode
Drivers Airbag Renew01.20.AB

Removal

  1. Remove the earth ('-ve') terminal from the vehicle battery and ensure the ignition key is removed.
  2. Remove bolts (x2) that secure the driver airbag.

Rotate the steering wheel to gain access to the two bolts.

⚠ Warning ⚠
Allow a two minute power down period before proceeding. This will ensure that there is no power to the airbag system.

  1. Withdraw the driver airbag to gain access to the wiring harness plug. Disconnect the plug.
  2. Withdraw the driver airbag.

Installation

  1. Place the airbag module to the steering wheel. Connect the wiring harness plug.
  2. Install the bolts (x2). Torque to 8-10 Nm.
  3. Connect the vehicle battery with the ignition in the 'Off' position.

Passenger Airbag

Repair Operation Time (ROT)
ItemCode
Passenger Airbag Renew01.20.BB

Removal

  1. Remove the earth ('-ve') terminal from the vehicle battery and ensure the ignition key is removed.
  2. Remove the glove box.
    1. Pull of the outer trim panel. Disconnect the glovebox release switch wiring harness plug.
    2. Release the damper cord.
    3. Remove screws (x3) from the glovebox door hinge. Remove door.
    4. Remove screws (x4) from the sight shield. Remove the sight shield and glovebox.

⚠ Warning ⚠
Allow a two minute power down period before proceeding. This will ensure that there is no power to the airbag system.

Parts & tools for this job For 2005 Aston Martin DB9

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