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.
If ABS ECU detects a system malfunction, ABS ECU illuminates ABS warning light while at the same time prohibiting ABS control. At this time the ECU records a DTC in memory.