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Home >> Lexus >> 2001 >> ES 300 V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Lighting and Horns >> Dimmer Switch >> Testing and Inspection
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Dimmer Switch: Testing and Inspection




Combination Meter Adjustment:
INSPECT RHEOSTAT LIGHT CONTROL VOLUME
a. Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 1.
b. Connect the positive (+) lead from the voltmeter to terminal 5 and negative (-) lead to terminal 3.
c. Turn the rheostat knob and check that the voltage changes.




Illumination Adjustment:
INSPECT RHEOSTAT LIGHT CONTROL VOLUME
a. Connect the positive (+) lead from the battery to terminal 5 and 7 and negative (-) lead to terminal 1.
b. Connect the positive (+) lead from the voltmeter to terminal 7 and negative (-) lead to terminal 2.
c. Turn the rheostat knob and check that the voltage changes.




Tail Cancel:
INSPECT RHEOSTAT LIGHT CONTROL VOLUME
a. Connect the ohmmeter to terminals 6 and 7.
b. Turn the rheostat knob fully clockwise and check that current flow stops.
If switch is not as specified, replace the volume.
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