Circuit Description
WARNING: This page is about a different car, the 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
If Skid Control ECU detects trouble, it lights ABS warning light while preventing ABS control. At this time, ECU records a DTC in memory.
Jumpering between terminals Tc and CG of (DLC3) makes ABS warning light flash and output DTC. See Figure.