Circuit Description
WARNING: This page is about a different car, the 2003 Toyota Prius, 2002 Toyota Prius, and 2001 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
ABS solenoid relay supplies power to each ABS solenoid. After ignition switch is turned to ON position, if initial check is okay, relay turns on. If malfunction occurs in ABS solenoid relay circuit, ABS ECU cuts off current to ABS solenoid relay and prohibits ABS control.