Heated Oxygen Sensor: Inspection

WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT HEATER RESISTANCE OF OXYGEN SENSOR
1. Disconnect the sensor connector.
2. Using an ohmmeter, measure the resistance between terminals +B and HT.
  Resistance: 11 to 16 Ω at 20°C (68°F)
  
  Fig 1: Measuring Resistance Between Terminals +B And HT Using Ohmmeter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the resistance is not as specified, replace the sensor.
  
  Torque: 44 N.m (450 kgf.cm, 32 ft.lbf)
3. Reconnect the sensor connector.
INSPECT OPERATION OF HEATED OXYGEN SENSOR (See DTC P0136: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 2) )