July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Distance Control Ecu: Components
WARNING: This page is about a different car, the 2006 Lexus IS 350 and 2006 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Distance Control ECU Replacement Components With Torque Specifications