Heated Oxygen Sensor: Inspection

INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
1. Disconnect the oxygen sensor connector.
2. Using an ohmmeter, measure the resistance between terminals +B and HT.
  Resistance: 11 - 16 Ω at 20°C (68°F)
  
  If the resistance is not as specified, replace the sensor.
  
  Torque:
  
  44 N.m (450 kgf.cm, 32 ft.lbf) for sensor 1
  
  20 N.m (200 kgf.cm, 14 ft.lbf) for sensor 2
3. Reconnect the oxygen sensor connector.
INSPECT OPERATION OF HEATED OXYGEN SENSORS (See DTC P0130: OXYGEN SENSOR CIRCUIT (BANK 1 SENSOR 1) & DTC P0136: OXYGEN SENSOR CIRCUIT MALFUNCTION (BANK 1 SENSOR 1) )

Fig 1: Measuring Resistance Between Terminals +B And HT
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