WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Ignition On Position (Position I)
Courtesy of VOLVO CARS OF NORTH AMERICA.
WARNING:
The battery must not be connected when the SRS ignition cable connector is being removed or installed.
Ignition switch to position I so that the steering wheel lock is disengaged.