Sign in to follow this  

Remote Keyless Entry For 1993 Ls400

Recommended Posts

Okay. I did a search and did not find any previous topics on "remote" or "keyless" so I will start a new one.

When I got my '93 LS400 it came with only one key with the integrated chip. It works and it looks like this:

I can easily get a spare key made by a local locksmith but I would need advise on what to do with getting another remote unit. Would the good people of this forum please advise me on what they might do in a situation like this?

1. Buy this pair at $331 and have it programmed by the local Lexus dealer.

2. Buy this other "1993 remote" from ebay and hope that it works.

3. Get an aftermarket alarm/remote keyless entry system.


Share this post

Link to post
Share on other sites


according to my 93 shop manual, the key transmitters are supposed to come with a ROM (read only memory) chip that you would need to install in the ECU when you get a new remote transmitter. The manual says ROM, not PROM which is a programmable read only memory. If you buy the 2 keys, make sure that they come with the ROM to install in the ECU or they will most likely not work at all.


Share this post

Link to post
Share on other sites

UCLABB, I went to their site but they only make transponder keys.

Curt, I might just go for an aftermarket system - one that can also unlock the trunk remotely.

Thanks guys!


Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this