Dash lights does not work - 1995 Lexus LS 400

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most dash lights can be dimmed or switched off check this first, then trace the wiring from the switch to the dash lights for a bad connection.

The tail lights are usually on the same fuse as your dash lights. Check to see if you have tail lights. If they are on and it's only your dash lights that don't work, check the dash dimmer switch for a fault.

There are few help links provided to resolve this issue of dash board light not working.Click the link below to go through its procedure:-----Dash board lights not working? http://repairhelpcenter.blogspot.in/2012/02/dash-board-lights-not-working-on-gmc.html
----------- light in the dash blinks? http://repairhelpcenter.blogspot.com/2012/01/overdrive-light-in-dash-blinks.html
-----------Orange O/D warning light flashing on dash? http://repairhelpcenter.blogspot.com/2012/01/orange-od-warning-light-flashing-on.html
---------gauge on the dash quit working on? http://technoanswers.blogspot.com/2012/01/temperature-gauge-on-dash-quit-working.html---------No 4x4 light on dash? http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
----------Digital Dash Display not working? http://schematicsdiagram.blogspot.com/2011/12/cadillac-seville-digital-dash-display.html
---------warning on dash and alarm sounds? http://schematicsdiagram.blogspot.com/2011/12/chevrolet-tahoe-hood-open-warning-on.html
---------Light Stays On dash of car? http://schematicsdiagram.blogspot.com/2011/06/brake-indicator-light-stays-on-dash-of.html
----------The ABS and Traction Control Lights stays ON dash of car? http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html
----------warning lights remains steady on dash? http://schematicsdiagram.blogspot.com/2011/12/abs-brake-warning-lights-remains-steady.html
---------light bulb under dash replacement?

http://schematicsdiagram.blogspot.com/2011/12/heating-knob-light-bulb-under-dash.html

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Parking lights, tail lights and dash lights not working? http://technoanswers.blogspot.com/2012/01/parking-lightstail-lights-and-dash.html

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How to replace Instrument panel and dashboard?

http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-instrument-panel-and.html

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Tail lights and dash light fuse keeps blowing? http://technoanswers.blogspot.in/2012/02/tail-lights-and-dash-light-fuse-keeps.html

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This will help.

Thanks.

These lights for the dash are controlled by a rheostat instrument control dimmer switch next to the main light switch for the headlights, it is either turned off (have seen this dozens of times) or it is defective. Below is a picture of the switch assembly I speak of. The thumb wheel next to the knob is the dimmer control.

Dash lights are on the same fuse as the tail lights. Dash lights not working is an indication that the tail lights are not working. The first thing to check is that the tail light fuse is not blown. Most of the time replacing the tail light fuse will restore both the tail lights and the dash/interior lights. If this is not the case you may have to trace the wires and look for a broken or unplugged wire in the harness.

Look for fuse panel under or either side of dash. Another location may be similar in engine bay.
Fuses probably labelled. Available at motor shops, garages etc.
If out of your experience then probably not expensive to ask auto electrician where to look. Many are cooperative and may tell over the phone or counter.

WELL IF YOU HAVE DIGITAL DASH YOU HAVE TO REPLACE IT.SOME DASH CLUSTER HAS SMALL REPLACEABLE BULBS THEY CAN BE REPLACED.

the occasional not working leads me to believe it's loose wiring or a short in the wire somewhere