Transponder Key
Thread Starter
Pole Position
Joined: Apr 2002
Posts: 340
Likes: 0
From: DC
Transponder Key
Hey guys, the battery in my transponder seems to dying. Has anyone ever taken one apart to change the battery? I def. don't wanna ask the Lexus dealer, any solution they have will probably cost hundreds 
I just want to make sure that I won't mess anything up by taking it apart.
Thanks,
-Johnny
I just want to make sure that I won't mess anything up by taking it apart.Thanks,
-Johnny
Lead Lap
Joined: Dec 2001
Posts: 622
Likes: 1
From: CA - San Deigo
Originally posted by Neal Rikal
how much is a new transponder key? mine is missing the button and the spring. plus it dosn't seem to want to stay in one piece. ghetto key, nice car dosnt go too well
how much is a new transponder key? mine is missing the button and the spring. plus it dosn't seem to want to stay in one piece. ghetto key, nice car dosnt go too well
Lexus Test Driver
Joined: Oct 2001
Posts: 1,269
Likes: 0
From: CHICAGO
Neal, you are welcome
Look on ebay....a guy sells them for $75.00 new.
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1853655987
Look on ebay....a guy sells them for $75.00 new.
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1853655987
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Lexus Test Driver
Joined: May 2002
Posts: 1,472
Likes: 4
From: Ohio, USA
Transponders vs Transmitters
"Transponder" refers to the chip that deactivates the engine immobilizer. I believe it was only found in cars 98 or newer (at least on the ES, the model with which I'm familiar).
The unlock button in the key is a "transmitter" that sends a radio signal to unlock your doors.
The transponder keys you see on eBay have the security chip for newer cars, but don't have a radio transmitter for keyless entry. For awhile, the transmitter was on the key (as on my 96 ES), then it was moved to a keyfob (97-98 ES, some LS), and then back onto the key when Lexus switched to the keys with the big heads, buttons for lock, trunk, and panic, and the security chip (as on my 01 IS).
The unlock button in the key is a "transmitter" that sends a radio signal to unlock your doors.
The transponder keys you see on eBay have the security chip for newer cars, but don't have a radio transmitter for keyless entry. For awhile, the transmitter was on the key (as on my 96 ES), then it was moved to a keyfob (97-98 ES, some LS), and then back onto the key when Lexus switched to the keys with the big heads, buttons for lock, trunk, and panic, and the security chip (as on my 01 IS).
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