Update from a new member from US. The engine warning light came on first then the Vehicle Stability Control (VSC) about a day later on my 2001 RX300. Took it to my regular garage mechanic, and he replaced the Oxygen sensor and the rear fuel sensor. Total for $600 US. Each part was over $200. VSC light stayed on for 1/2 day and my mechanic thought I might have an ABS problem not fully indicated on diagnostic. Told me to drive the car and watch for abs. VSC light went off the next morning and has been warning light free thereafter. Hope my luck continues.