2002 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

On-Vehicle Inspection

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FLUID LEVEL 
    1. Start the engine on a level place. Adjust the vehicle height to "N" position with the vehicle unloaded.
      NOTE: After adjusting the vehicle height to control the fluid pressure in the height control accumulator, do not turn the engine OFF.
    2. Check that the fluid level in the reservoir tank of the AHC pump motor is within the standard range.
    Fig 1: Identifying Fluid Level Standard Range
    G01353588Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. OPERATE HEIGHT SELECT SWITCH AND CHECK CHANGE OF VEHICLE HEIGHT 
    1. Check the tires for the proper inflation pressure. (See TIRE AND WHEEL )
    2. Check the vehicle height. (See FRONT WHEEL ALIGNMENT )
    3. Start the engine.
    4. Push the height select switch to change from "N" to the "HI" mode.
    5. Check the time required for the height change and the changed amount of the vehicle height.

      Standard value 

      Fig 2: Standard Value Chart (HI Mode)
      G01353589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Amount of change in vehicle height 

      Fig 3: Amount Of Change In Vehicle Height Specification Chart (HI Mode)
      G01353590Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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When to See a Mechanic

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

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