Circuit Description
WARNING: This page is about a different car, the 2006 Toyota Corolla and 2005 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
This skid control ECU inputs the stop lamp switch signal and detects the status of the brake operation. The skid control ECU has an open detection circuit. If an open in the stop lamp switch input line or GND side stop lamp circuit is detected when the stop lamp switch is off, this DTC is output.