toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Relays and Modules - Computers and Control Systems > < Air-Fuel Ratio (A/F) Sensor
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Oxygen Sensor: Testing and Inspection
Heated Oxygen Sensor

HEATED OXYGEN SENSOR

INSPECTION

1. INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR

a. Disconnect the sensor connector.

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

Resistance

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

Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

c. Reconnect the oxygen sensor connector.

2. Bank 1 Sensor 2:

INSPECT OPERATION OF HEATED OXYGEN SENSOR

 

Relays and Modules - Computers and Control Systems > < Air-Fuel Ratio (A/F) Sensor