Lexus RX300 (MCU15). Service manual - part 132
I04524
0 Ω
10 kΩ
5
1
I04525
I04523
I04526
Driver side
Passenger side
1
3
1
3
–
BODY ELECTRICAL
COMBINATION METER
BE–75
LEXUS RX300 (RM785E)
24.
LHD:
INSPECT LIGHT CONTROL RHEOSTAT OPERATION
Gradually, turn the rheostat knob from the bright side to dark
side and check that the resistance decreases from 10 kΩ to 0
Ω
between terminal 4 and 5. (Rheostat knob turned to clock-
wise)
If operation is not as specified, replace the rheostat light control.
25.
INSPECT WINDOW WASHER LEVEL WARNING
LIGHT
(a)
Disconnect the connector from the warning switch and
ground terminal on the wire harness side connector.
(b)
Engine running and check that the warning light lights up.
If the warning light does not light up, inspect the bulb or wire har-
ness.
26.
INSPECT WINDOW WASHER LEVEL WARNING
SWITCH CONTINUITY
(a)
Check that no continuity exists between the terminals with
the switch OFF (float up).
(b)
Check that continuity exists between the terminals with
the switch ON (float down).
If operation is not as specified, replace the switch or inspect
ground point.
27.
INSPECT SEAT BELT WARNING LIGHT
(a)
Disconnect the connector from the buckle switch and
ground terminal on the wire harness side connector as
shown in the illustration.
(b)
Turn the ignition switch ON and check that the warning
light lights up.
If the warning light does not light up, check the bulb circuit (See
page DI–551).