Detection Switch: Notes
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 1994 Mitsubishi Montero, 1993 Mitsubishi Montero, 1993 Dodge Ram 50, 1992 Mitsubishi Pickup, and 1992 Mitsubishi Montero. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
With switch removed, check continuity between switch connector terminal and switch body. With switch installed, check continuity between switch connector terminal and transfer case.