Circuit Description
WARNING: This page is about a different car, the 2002 Lexus LX 470 and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
The sensor check circuit detects abnormalities in speed sensor signal which cannot be detected with the DTC check. Using special tool (09843-18020 or 18040) to jumper between terminals Ts and E1 of (DLC1) starts the check.