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!

 

Bump. Does anyone have any ideas?

 

I don't know, is there are troubleshooting guide in the service manual? If I find it will post.

 

download this PDF and go to page 441

https://filebin.net/9y0vde0aozug4xqj...pdf?t=5d4stvds

 

Thanks for your help Lexus2000. I 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.

 

These solved my remote keyless entry issues.