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Unit inspection

  1. Inspection of oxygen sensor
    1. Measure the resistance between the terminals.
      RESISTANCE

      Inspection terminals Inspection conditions Standard value
      1 - 2 20°C {68°F} 5.0 to 6.4 Ω
      1 - 4 Always 10 k Ωor more
      Fig 1: Identifying Oxygen Sensor Connector Terminals
      G08554064Courtesy of SUBARU OF AMERICA, INC.
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