WARNING: This page is about a different car, the 2003 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying TCM I/O Signal Terminals
Courtesy of SUBARU OF AMERICA, INC.
Fig 2: TCM I/O Signal Electrical Specifications Chart (1 Of 3)
Courtesy of SUBARU OF AMERICA, INC.
Fig 3: TCM I/O Signal Electrical Specifications Chart (2 Of 3)
Courtesy of SUBARU OF AMERICA, INC.
Fig 4: TCM I/O Signal Electrical Specifications Chart (3 Of 3)