2021 Lexus LS 500h AWDFACTORY OEM SERVICE PROCEDURE

Removal [10/2017 - ]: Procedure

  1. REMOVE INTAKE AIR SURGE TANK ASSEMBLY 

    Refer to REMOVAL [10/2017 - 10/2020] , or refer to REMOVAL [10/2020 - 11/2021] , or refer to REMOVAL [11/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

  2. REMOVE E.F.I. ENGINE COOLANT TEMPERATURE SENSOR 
    1. Disconnect the E.F.I. engine coolant temperature sensor connector.
      GTY810599Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the clip and E.F.I. engine coolant temperature sensor from the rear water by-pass joint.
      GTY810594Courtesy 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.

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