T100 SR5 Extra Cab Pickup 2WD V6-3.4L (5VZ-FE) (1997)
Oxygen Sensor: Testing and Inspection
HEATED OXYGEN SENSORS INSPECTION
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS
(a) Disconnect the oxygen sensor connector.
Bank 1 Sensor 1 Heater Circuit Inspection
Bank 1 Sensor 2 Heater Circuit Inspection
(b) Using an ohmmeter, measure the resistance between the terminals +B and HT.
Resistance:
At 20°C (68°F):
M/T Bank 1 Sensor 1:5 - 7 ohms
Others :11 - 16 ohm
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.