WARNING: This page is about a different car, the 2002 Toyota Land Cruiser, 2002 Lexus LX 470, 2001 Toyota Land Cruiser, and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Electronic Control System Wiring Diagram (2001-02 Lexus LX 470)
Fig 2: Transmission Electronic Control System Wiring Diagram (2001-02 Toyota Land Cruiser)