WARNING: This page is about a different car, the 2004 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Non-Turbo Model Connector Terminals
Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Ignition Switch Specification Chart (1 Of 3)
Courtesy of SUBARU OF AMERICA, INC.
Fig 3: Ignition Switch Specification Chart (2 Of 3)
Courtesy of SUBARU OF AMERICA, INC.
Fig 4: Ignition Switch Specification Chart (3 Of 3)