Lexus GS, SC 1998-06

Heated Oxygen Sensor

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Testing



  1. Disconnect the oxygen sensor connector.
  2.  
  3. Using an ohmmeter, measure the resistance between the terminals +B and HT. Resistance should be 11-16 ohms at 68°F (20°C).
  4.  
  5. If the resistance is not as specified, replace the sensor. Tighten to 14 ft. lbs. (20 Nm).
  6.  
  7. Reconnect the oxygen sensor connector.
  8.  

  1. Disconnect the oxygen sensor connector.
  2.  
  3. Using an ohmmeter, measure the resistance between the terminals +B and HT. Resistance should be 11-16 kohms at 68°F (20°C)
  4.  
  5. If the resistance is not as specified, replace the sensor. Tighten to 14 ft. lbs. (20 Nm).
  6.  
  7. Reconnect the oxygen sensor connector.
  8.  



Click image to see an enlarged view

Fig. Testing the Oxygen Sensors-3.0L (2JZ-GE) VIN D

  1. Measure the resistance between terminals +B and HT. If the resistance is not as specified, replace the oxygen sensor.

    Click image to see an enlarged view

    Fig. Temperature/resistance table-3.0L (2JZ-GE) VIN D

  2.  

  1. Disconnect the oxygen sensor connector.
  2.  
  3. Using an ohmmeter, measure the resistance between the terminals +B and HT. Resistance should be 11-16 ohms at 68°F (20°C).
  4.  
  5. If the resistance is not as specified, replace the sensor. Tighten to 14 ft. lbs. (20 Nm).
  6.  
  7. Reconnect the oxygen sensor connector.
  8.  

  1. Disconnect the oxygen sensor connector.
  2.  
  3. Using an ohmmeter, measure the resistance between the terminals +B and HT. Resistance should be 11-16 kohms at 68°F (20°C)
  4.  
  5. If the resistance is not as specified, replace the sensor. Tighten to 14 ft. lbs. (20 Nm).
  6.  
  7. Reconnect the oxygen sensor connector.
  8.  

 
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