Disabling Air Bag System
WARNING: This page does not describe the selected car, but rather 173 other vehicles, including the 2003 Volvo XC90, 2003 Volvo XC70, 2003 Volvo V70, 2003 Volvo V40, and 2003 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off and remove ignition key. Disconnect any outside source of electrical circuit (i.e. battery charger). Disconnect negative battery cable and shield cable end. Disconnect SRS control module connector.