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Home >> Lexus >> 2023 >> RX 500h >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Service Information >> AIR FUEL RATIO SENSOR (for Sensor 1) >> Removal [10/2022 - ] >> Procedure

Removal [10/2022 - ]: Procedure

  1. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  2. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 3 [08/2023 - ]

  3. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
  4. REMOVE NO. 3 ENGINE COVER 
  5. REMOVE AIR FUEL RATIO SENSOR 
    1. GTY1131928Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disengage the 4 wire harness clamps.
      2. Disconnect the air fuel ratio sensor connector.
      3. Using SST, remove the air fuel ratio sensor from the converter with catalyst assembly.
        • SST: 09224-00012 
        NOTE:

        If the air fuel ratio sensor has been struck or dropped, replace it.