Inhibitor Switch

Shift inhibitor switch to "P" position. Continuity should be present between terminals "a" and "b". Continuity should not be present between terminals "a" and "f".
Shift inhibitor switch to "N" position. Continuity should not be present between terminals "a" and "b". Continuity should be present between terminals "a" and "f".
Shift inhibitor switch to any position other than "P" or "N". Continuity should not be present between terminals "a" and "b" or "a" and "f". See Fig 1 .

Fig 1: Identifying Inhibitor Switch Terminals

Courtesy of NISSAN MOTOR CO., U.S.A.