4WD Input (Land Cruiser, Sequoia, Tacoma, Tundra & 4Runner)
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
On 4WD models, Engine Control Module (ECM) receives an input signal from transfer L4 position switch and transfer neutral position switch to indicate transfer case position.