Rear Wiper & Washer: Notes
WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition is on, the current flows from RR WIP fuse to TERMINAL WIG of the body ECU, and from WASHER fuse to TERMINAL 2 of the washer motor. See WIRING DIAGRAMS .