LexPegged

nevernu

maybe this is useful, prob not

LexPegged

LexPegged

This is an older thread I started a while ago. I figured I’d go back to it because the issue is solved.

I recently went to the Lexus dealer for the airbag recall and asked about the intermittent wipers. They said that after a windshield replacement the place I went to forgot to install the gel tape for the rain censoring system. Went back to the glass shop, they ordered the part and after a quick install the intermittent wipers are working again.

This was clearly not the car’s fault. I just want to state that basically in 9 and a half years and 85,000 miles of this car’s life NOTHING has ever broken. Hope this helps anyone to make a purchasing decision when looking for an ES of this vintage.

ilkinandr

By Intermittent you mean automatic wipers. If that's the case. Also you saying it happened after windshield replacement, means the sensor on the windshield right next to rear view mirror is not working correctly. Either not connected, broke, or the glass is after market and can cause issue with them. Bring back to person who done the glass.

Sorry, did not see the last post. Glad everything is solved.

LexPegged

Both automatic and intermittent stopped working because the glass shop forgot to include the tape for the sensor. All good since they corrected the problem.

tbdxb

Hi All,
resurrecting this old thread because I have a similar problem. If I missed a better suited thread please point me to it.
Long story short: I cannot get my wipers to work intermittent or automatic.
My 2012 IS250 has a rain sensor. Mist, Low speed, High speed, washer all works. When switching to Auto mode, wiper goes once and then never again.
I read somewhere that a faulty rain sensor may be to blame and that disconnecting the rain sensor "degrades" the wipers into manual intermittent mode. So, I disconnected the rain sensor, but no change in behavior. Switching from Off or Low speed to Auto makes one wipe then stops.
I doubt that it is the stalk switch since it wipes once when moving it to Auto mode.
Is there a secret setting somewhere? If yes, where or what are the steps? (In the car settings menu I cannot find any entry concerning the wipers. The owner's manual describes the functions but no settings by menu or sequence of button presses or similar.)
I am not sure if the rain sensor works, but since there is no difference in behavior whether the sensor is connected or not, I currently cannot judge it. Anyways, I can live without rain sensor but I would like to have intermittent wiper operation.
Has anybody any suggestion? Where to start with the search?
Any hint appreciated.
Thomas

SoIllSam

Did you ever get this fixed? I'm a "new" owner and the problem just started.

Thanks.

tbdxb

Unfortunately, No.
Although this car is my daily commuter (approaching 100k now) we have hardly 5 days of rain in a year. And due to lack of opportunity to investigate this further I left it as is. Doesn't bother me much.

Clutchless

This is best diagnosed professionally before spending a lot of money on parts that may not help. There are a few different possible causes besides those mentioned above.

It is possibly caused by a bad relay. Look at the relay/fuse box under the hood. When the top is removed its underside should have a map to the relays. If there is another one inside that is the same spec as the wiper relay try swapping them out to see if they then work. Otherwise, you could easily get one from a Toyota or Lexus at an auto recycling yard (Pick & Pull type) or eBay. The link below to Lexus parts also shows the relay for over $300 and the control module is over $400, but the specific ones in the link are not necessarily for your car, you need to use their menu to find the exact parts for year and model, or enter your VIN, or take it to a shop for diagnosis.

Or a bad wiper control module https://parts.lexus.com/p/Lexus_2012...594033170.html


If the relay or module change does not fix it I would get a used wiper switch on eBay and try that, but you may need a body shop to do the work as the airbag inside the steering wheel is very dangerous unless you know what you are doing to safely work on it.

Or maybe this will help
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Or just live with it as it may not be worth the investment to repair this on an old ES