Heated Oxygen Sensor Inspection - Lexus 2005 IS300 User Manual

Ohmmeter
+B
+B
INSPECTION
1.
(a)
(b)
HT
B08610
If the resistance is not as specified, replace the sensor.
(c)
2.
Ohmmeter
(a)
(b)
HT
(c)
(d)
If the resistance is not as specified, replace the sensor.
F20083
(e)
(f)
(g)
SFI - HEATED OXYGEN SENSOR
Bank 1, 2 Sensor 1, and Bank 1 Sensor 2:
INSPECT HEATER RESISTANCE OF HEATED OXY-
GEN SENSORS
Disconnect the oxygen sensor connectors.
Using an ohmmeter, measure the resistance between the
terminals +B and HT.
Resistance:
20°C (68°F)
800°C (1,472°F)
Torque: 45 N·m (450 kgf·cm, 33 ft·lbf)
Reconnect the oxygen sensor connectors.
Bank 2 Sensor 2:
INSPECT HEATER RESISTANCE OF HEATED OXY-
GEN SENSOR
Remove the front seat assembly RH.
Remove the air duct guide rear RH.
Disconnect the oxygen sensor connector.
Using an ohmmeter, measure the resistance between the
terminals +B and HT.
Resistance:
20°C (68°F)
800°C (1,472°F)
Torque: 45 N·m (450 kgf·cm, 33 ft·lbf)
Reconnect the oxygen sensor connector.
Install the air duct guide rear RH.
Install the front seat assembly RH.
Author :
SF-73
SF0OC-11
11 - 16 Ω
23 - 32 Ω
11 - 16 Ω
23 - 32 Ω
Date :
1454