LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Tried to Program 2nd Key - Now Master Won't Work Either

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Old 02-20-22, 07:59 PM
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Nphoops
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Default Tried to Program 2nd Key - Now Master Won't Work Either

I tried the instructions given in various threads regarding programming a 2nd key/remote. I was trying the transponder instructions. No success with those, but now the master key won't work either!

Currently I have the negative battery cable disconnected, hoping that resets the ECU.

Any other suggestions?




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