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Heated Oxygen Sensor: Inspection

  1. INSPECT HEATED OXYGEN SENSOR 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      Bank 1 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      2 (HT1B) - 1 (+B) 20°C (68°F) 11 to 16 Ω
      2 (HT1B) - 3 (E2) Always 10 kΩ or higher

      Bank 2 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 (HT2B) - 2 (+B) 20°C (68°F) 11 to 16 Ω
      1 (HT2B) - 4 (E2) Always 10 kΩ or higher

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

      Fig 1: Identifying Heated Oxygen Sensor Connector Terminals
      G05414087Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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