2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

System Outline

* To realize an optimal maneuverability of the driver, the steering gear ratio is calculated from the steering angle and vehicle speed signals to operate the actuator.

* When the system has abnormality, the power relay (Built in the ECU) is shut off and the assistance is stopped by inserting the lock bar (Built in the actuator), resulting in lighting the warning lamp (The master warning) in the meter.

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

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.

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