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Heated Oxygen Sensor: Inspection: Inspection

  1. INSPECT HEATED OXYGEN SENSOR (for 4WD) 
    1. Check the resistance.
      Fig 1: Inspecting Heated Oxygen Sensor (For 4WD)
      GTY238413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard Resistance

        Tester Connection Condition Specified Condition
        HT - +B 20°C (68°F) 11 to 16 Ω
        HT - E - 10 kΩ or higher

        If the resistance is not as specified, replace the heated oxygen sensor.

  2. INSPECT HEATED OXYGEN SENSOR (for 2WD) 
    1. Check the resistance.
      Fig 2: Inspecting Heated Oxygen Sensor (For 2WD)
      GTY217673Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an ohmmeter, measure the resistance between the terminals.

        Standard Resistance

        Tester Connection Condition Specified Condition
        HT - +B 20°C (68°F) 11 to 16 Ω
        HT - E - 10 kΩ or higher

        If the resistance is not as specified, replace the heated oxygen sensor.

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