Bruno Molly Posted November 5, 2009 Share Posted November 5, 2009 -= 1993 LS400 =- I have searched Many posts from various forums including this one and have gotten the programming instruction with the Door open / IGN key / cycle door locks with procedure. However I get no indication of what year Ls400 this procedure works on. Like the "ADD NEW", "Erase Previous codes" part..... Does this procedure pertain to 93-94 LS400's like when you get another Key? I have acquired a used Key from a Cash from a Cashed out Clunker ES300. The FCC ID's match my key. My current key's transmitter is malfunctioning and does not emit any RF signal. If I perform this procedure on my 93 will I be able to ADD this other transponder Key? Or will it have to be reprogrammed with a new ROM etc to match the GOOD Transmitter key? Whats the deal with the 93-94 LS400's. Are they the same as the 90-92 models? I think 1995 went to a Fob or multi-button setup???? Whats my Recourse? thanks Darren Quote Link to comment Share on other sites More sharing options...
Bruno Molly Posted November 6, 2009 Author Share Posted November 6, 2009 .....Looking at the Key programming ROM setup.... Is it as simple as changing the ROM / Matching Key to get the car to respond to the remote RF signal? or does it still need to go thru that lock / key programming sequence? Anyone? Thanks Quote Link to comment Share on other sites More sharing options...
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