LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

How to get rid of red warning light, low washer fluid

Old 01-17-14, 11:43 AM
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Greg5OH
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Default How to get rid of red warning light, low washer fluid

im assuming the foam arm has gotten water ligged and is stuck down. Gives me tge stupid red light by message center. Can i turn it off? can i just unplug the sensor to turn the light off?
Old 01-17-14, 12:27 PM
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Shmee
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Depends on the type of switch, it's either a "close on low" or "open on low" type switch. One you can unplug to get rid of the light, the other you have to jump with a wire across the plug.

Either should be an easy fix, unless it is a resistance type sensor, then it is a bit more complicated....
Old 01-17-14, 12:36 PM
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LScowboyLS
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often you can just clean the mechanism with vinegar and it will move again nicely, and then you still have all of the features!
Old 01-17-14, 01:23 PM
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Greg5OH
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I definitly want to keep all teh features. I shall give that a try. But i need to drive the car 500 miles this weekend and dont have time to meddle with taking the arm out. Where is that connector located to unplug?
Old 01-17-14, 01:48 PM
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keyframe13
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Duct tape over the light maybe?!
Old 01-17-14, 01:57 PM
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LScowboyLS
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I would fill the washer bottle up full with white vinegar and leave it for a few hours, and then stick hose down there and wash out the vinegar, then it will likely be working
Old 01-17-14, 02:57 PM
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YoshiMan
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I'm not overly familiar with the washer fluid sensor on the LS's, but i know on some cars it is simply a plastic float with a magnet on it or something, and that in time, sometimes it develops a leak and sinks to the bottom of the tank, therefore making it think that it is always empty.

You may be able to take the sensor out, dry the float out, and give it a light coating of something to re-seal it.
Old 01-17-14, 07:26 PM
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LScowboyLS
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yes, YoshiMan is correct, if it is not gummed up with mineral deposits, then the float mechanism is likely leaking, both situations are very fixable
Old 01-18-14, 07:09 PM
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Just unplug it ans the light goes off which is how I got mine off took all of 45 seconds to do it.
Old 01-19-14, 12:45 AM
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PureDrifter
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unplug it to kill the light.

The LS has a foam float and over the years it becomes saturated. I keep an eye on my fluids so I don't care about something as non-critical as a washer level sensor and never bothered to fix it.

IIRC you can get the whole washer bottle (sans electrical components but with the level sensor gear) for like $50 from lexus, new.
Old 06-19-14, 06:24 PM
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rayplumas
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Where is the connector on the 99 LS400 to get the low fluid light off?
Old 06-19-14, 08:32 PM
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sha4000
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Originally Posted by rayplumas
Where is the connector on the 99 LS400 to get the low fluid light off?
It's on the bottom of the fluid reservoir in back of the bumper on the drivers side.
Old 06-20-14, 01:50 PM
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steve2006
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Repair proceedure post number 6
http://www.lexusownersclub.co.uk/for...=washer+bottle
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