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Home >> Toyota >> 2000 >> Sienna LE V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Testing and Inspection >> Heated Oxygen Sensor
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Heated Oxygen Sensor




1. 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: 11 - 16 Ohm at 20 °C (68 °F)
If the resistance is not as specified, replace the sensor.

Torque: 44 Nm (440 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 Ohm at 20 °C (68 °F)
If the resistance is not as specified, replace the sensor.

Torque: 44 Nm (440 kg.cm, 31 ft.lb)

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