Heated Oxygen Sensor

Except California Spec. A/T:
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS (Bank 1 Sensor 1, Bank 2 Sensor 1)
a. Disconnect the oxygen sensor connector.




b. Using an ohmmeter, measure the resistance between the terminals +B and HT.

Resistance:
At 20 °C (68 °F) 11 - 16 Ohms
At 800 °C (1,472 °F) 23 - 32 Ohms

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

Torque: 44 Nm (450 kg.cm, 32 ft.lb)

c. Reconnect the oxygen sensor connector.