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.
The brake fluid level warning switch sends the appropriate signal to the ECU when the brake fluid level drops. Depressing parking brake pedal also turns on the brake warning light but does not diagnose DTC No. C1202/ 58.