how 2 check...
#2
Lexus Test Driver
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Bank 1, 2 Sensor 1
INSPECTION
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSORS (Bank 1 Sensor 1, Bank 2 Sensor 1)
(a) Disconnect the oxygen sensor connector.
![](http://library.motoralldata.com/alldata/MTRLIB~C41140~R0~OB0~P3R0H~N/0/56775861/62685458/62685459/110767846/34853741/34857029/34857030/101367132/34857578/119756545/119756546/78739263/78739264)
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 (440 kgf.cm, 31 ft.lbf)
(c) Reconnect the oxygen sensor connector
Bank 1 Sensor 2
INSPECTION
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR (Bank 1 Sensor 2)
(a) Remove the driver's seat.
(b) Take out the floor carpet.
(c) Disconnect the oxygen sensor connector
![](http://library.motoralldata.com/alldata/MTRLIB~C41140~R0~OB0~P3R0H~N/0/56775861/62685458/62685459/110767846/34853741/34857029/34857030/101367132/34857578/119756545/119756547/78739267/78739268)
(d) 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 (440 kgf.cm, 31 ft.lbf)
(e) Reconnect the oxygen sensor connector.
(f) Reinstall the floor carpet.
(g) Reinstall the driver's seat
Air-Fuel Ratio Sensor
INSPECTION
INSPECT HEATER RESISTANCE OF A/F SENSORS (Bank 1 Sensor 1, Bank 2 Sensor 1)
(a) Disconnect the A/F sensor connector
![](http://library.motoralldata.com/alldata/MTRLIB~C41140~R0~OB0~P3R0H~N/0/56775861/62685458/62685459/110767846/34853741/34857029/34857030/101367132/34857578/103608169/78739261/78739262)
(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 (440 kgf.cm, 31 ft.lbf)
(c) Reconnect the A/F sensor connector.
INSPECTION
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 ohms at 20°C (68°F)
If the resistance is not as specified, replace the sensor.
Torque: 44 N.m (440 kgf.cm, 31 ft.lbf)
(c) Reconnect the oxygen sensor connector
Bank 1 Sensor 2
INSPECTION
INSPECT HEATER RESISTANCE OF HEATED OXYGEN SENSOR (Bank 1 Sensor 2)
(a) Remove the driver'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 ohms at 20°C (68°F)
If the resistance is not as specified, replace the sensor.
Torque: 44 N.m (440 kgf.cm, 31 ft.lbf)
(e) Reconnect the oxygen sensor connector.
(f) Reinstall the floor carpet.
(g) Reinstall the driver's seat
Air-Fuel Ratio Sensor
INSPECTION
INSPECT HEATER RESISTANCE OF A/F SENSORS (Bank 1 Sensor 1, Bank 2 Sensor 1)
(a) Disconnect the A/F 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 (440 kgf.cm, 31 ft.lbf)
(c) Reconnect the A/F sensor connector.
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