2009 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE

System Outline

* To give optimal maneuverability to the driver, the steering gear ratio is calculated from the steering angle and the vehicle speed, and this ratio is used to operate the actuator and provide steering assistance.

* When the system detects an abnormality, the power relay (Built into the ECU) is shut off and the assistance is stopped by inserting a lock bar (Built into the actuator), and the master warning lamp on the combination meter is lit.

* The front wheel turning angle is controlled according to signals from the skid control ECU assembly.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.