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99 ES300 - Keyfob works intermittently

 
Old 01-18-11, 08:22 PM
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miltonlin
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Default 99 ES300 - Keyfob works intermittently

My remote control works intermittently, hit the button 5-10 times, works maybe once or twice, sometimes consecutively. Replaced battery, even used second remote, same problem. This tells me that the problem is unlikely in the remote keyfobs or battery.

I read somewhere else that this maybe problem with wireless door lock - some module that may be in engine compartment.

Anyone have similar experiences and recommendation? Thank you!
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Old 02-01-11, 07:02 PM
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I replaced the wireless door controller ECU and same result. Can it be both remotes are bad?

Help!
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Old 02-02-11, 06:32 AM
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i had the same problem last week. thought it was the battery so i changed it but the problem was still there. then upon inspecting the remote inside the case i noticed it was really dusty. i wiped it down with an alchol pad from my first aid kit. fixxed it for me. maybe the dirt buildup was blocking the signal....
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Old 02-02-11, 11:50 AM
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Out of my frustration, I bought brand new batteries (have been using Maxell) from Advance Auto.

Now, I had already replaced the battery before using an unopened Maxell CR2016. Still had intermittent operation. This time I used an Energizer CR2016 from Advance. Nominal voltage is 3V

The Maxells have worked in the past and were cheap (off Ebay), but I'm guessing that they have all gone bad, even the unopened ones.

I measured the following voltages using a volt meter :
In remote #1, Maxell 2.98V - intermittent
remote #2, Maxell 3.01V - intermittent
Replaced in #1, Maxell 3.17V - intermittent
Repleace in #1, Energizer 3.24V - good!!

Thanks for replying 01ES300NYC. This problem was driving me crazy.
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Old 02-02-11, 12:02 PM
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glad u fixxed the problem!
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Old 02-06-11, 08:32 AM
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this is a good point. As with most modern vehicles newer than 1990, voltage is everything, and even just a few tenths of a volt in a 3 volt system can make or break you. Good job with the multi-meter testing the batteries!!!
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Old 09-02-11, 05:09 PM
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My key fob has been very weak since I bought the car in July, so I decided to replace the batteries in both remotes. The previous owner told me that he replaced both batteries not too long ago, but upon removal, I realized that he mismatched the battery types. One remote had the 2016 and the other was a 2025!

According to this thread, the right one is 2016, which is what I bought (luckily). But my other remote had a 2025, which is almost twice as thick. The tabs looked a little bent on the second one and the battery wasn't sitting flush.

So is 2016 the correct type for my car?
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Old 05-29-19, 08:56 PM
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Exclamation 97 es300 wireless remote not working anymore

Sorry to dig up this old issue but if anyone can help that would be spectacular. I have a 1997 Es 300 that just suddenly stopped responding to my two remote controls. I really only used one consistently but it doesn’t respond at all now. There is no sound, flashing lights or any action from the car. I replaced both batteries with new ones. All the door locks work as designed with the key in the door lock and with the power door lock buttons in the car. I even went to the salvage yard and picked up a door lock receiver from another 97 Es & also from a 99 Es. I tried to reprogram my remotes back to the car before tearing into it and then tried to reprogram with the other two receivers with absolute no change or difference. I can get the car in programming mode but when it comes to the step where I press the buttons on the remote that is where it stops and there is no response from the car. I must now use the key for the door and the trunk. Can anyone assist? Help!
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Old 06-10-19, 11:01 AM
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These batteries from Target solved my issue.
HI finally solved the issue. The new batteries I had on hand must have been old stock. They were Rayovac CR2016 but must have been on the store shelf too long and in my kitchen drawer too long. As a final effort I decided I would try another brand of fresh batteries. I bought some Energizers and put them in both remotes and reprogrammed them to the car and they both work like new. Hope this helps someone in the future.

Last edited by chadlex; 06-10-19 at 11:04 AM.
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