Rear Wiper Normal Operation
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 and the rear wiper and washer switch is turned to ON position, a signal is input to TERMINAL RWLS of the body ECU, and current flows from TERMINAL RWLM of the body ECU to TERMINAL 1 of the rear wiper motor to TERMINAL 2 to GROUND, and rotates the motor to operate the wiper. See WIRING DIAGRAMS .