Oxygen Sensor: Testing and Inspection

COMPONENTS

INSPECTION




1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR (Bank 1 Sensor 1)
a. Disconnect the oxygen sensor connector.
b. Using an ohmmeter, measure the resistance between the terminals +B and HT.

Resistance: 11 - 16 Ohms at 20 °C (68 °F)

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

Torque: 44 Nm (450 kg.cm, 31 ft.lb)

c. Reconnect the oxygen sensor connector.




2. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR (Bank 1, Sensor 2)
a. Remove the passenger's seat.
b. Take out the floor carpet.
c. Disconnect the oxygen sensor connector.
d. Using an ohmmeter, measure the resistance between the terminals +B and HT.

Resistance: 11 - 16 Ohms at 20 °C (68 °F)

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

Torque: 44 Nm (450 kg.cm, 31 ft.lb)

e. Reconnect the oxygen sensor connector.
f. Resistance the floor carpet.
g. Reinstall the passenger's seat.