Lexus SC300 / Lexus SC400. Manual - part 494
9. INSPECT
HEATER
RESISTANCE OF SUB–OXYGEN
SENSORS
Using an ohmmeter, measure the resistance between the ter-
minals +B and HT.
Resistance: 5.1–6.3
at 20
°
C (68
°
F)
If the resistance is not as specified, replace the sensor as
follows:
•
Disconnect the grommet from the floor panel, and
pull out the wire of the sub–oxygen sensor from the
floor panel.
•
Remove the sub–oxygen sensor.
•
Install a new sub–oxygen sensor.
Torque: 44 N
⋅
m (450 kgf
⋅
cm, 33 ft
⋅
lbf)
•
Run the wire of the sub–oxygen sensor through the
hole in the floor panel.
10. RECONNECT SUB–OXYGEN SENSOR CONNECTORS
11. REINSTALL
RADIO
(a) Connect the wiring connectors and antenna cable.
(b) Install the radio with the five bolts.
12. REINSTALL UPPER REAR CONSOLE PANEL
(a) Fit the console panel to the console box with five clips.
(b) Install the console panel with the six screws.
FI–120
EFI SYSTEM – Electronic Control System (Sub–Oxygen Sensors)