Ignition Key Lock: Inspection

Remove the instrument panel lower cover.
Remove the lower column cover.
Unfasten the hold down clip which secures harness and disconnect the connector of ignition switch from body harness.
Turn the ignition key plate to each position and check the continuity between terminals of ignition connector.

Fig 1: Checking Continuity Between Terminals Of Ignition Connector Chart
Courtesy of SUBARU OF AMERICA, INC.

If NG, replace the ignition switch.