Oxygen Sensor: Testing and Inspection
HEATED OXYGEN SENSORINSPECTION
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 N.m (450 kgf.cm, 31 ft.lbf)
c. Reconnect the oxygen sensor connector.
2. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR (Bank 1, Sensor 2)
a. Take out the floor carpet.
b. Disconnect the oxygen sensor connector.
c. 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 N.m (450 kgf.cm, 31 ft.lbf)
d. Reconnect the oxygen sensor connector.
e. Replace the floor carpet.