LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Control System - Service Information) >> AIR FUEL RATIO SENSOR (for Sensor 1) >> Inspection [10/2022 - ] >> Procedure

Inspection [10/2022 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT AIR FUEL RATIO SENSOR 
    1. Measure the resistance according to the value(s) in the table below.
      GTY746377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Air Fuel Ratio Sensor)

      Standard Resistance

      Tester Connection Condition Specified Condition Result
      1 (HA1A) - 2 (+B) 20°C (68°F) 1.6 to 3.2 Ω Ω
      1 (HA1A) - 4 (A1A-) Always 10 kΩ or higher

      If the result is not as specified, replace the air fuel ratio sensor.