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Home >> Lexus >> 1997 >> GS 300 L6-3.0L (2JZ-GE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Testing and Inspection
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Oxygen Sensor: Testing and Inspection








1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
(BANK 1 & 2, SENSOR 1)
- Disconnect the oxygen sensor connectors.
- Using an ohmmeter, measure the resistance between the terminals +B and HT.

Resistance: At 20°C(68°F): 11.7 - 14.30

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

Torque: 44 N.m (450 kgf.cm, 33 ft.lb.)

- Reconnect the oxygen sensor connectors.









2. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR
(BANK 1 SENSOR 2)
- Remove the scuff plate.
- Remove the instrument panel under cover.
- Take out the front side of the floor carpet.
- Disconnect the oxygen sensor connector. Using an ohmmeter, measure the resistance between the terminals +B and HT.

Resistance: At 20°C (6S°F): 11.7 - 14.3 Ohms

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

Torque: 44 N.m (450 kgf.cm, 33 ft.lb.)

- Reconnect the oxygen sensor connector.
- Reinstall the floor carpet.
- Reinstall the instrument panel under cover.
- Reinstall the scuff plate.
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