Can I Use My Master Key W/ Replacement Ecu

[adamah1983]

I need some help!!

hello, I recently purchased a wrecked 2001 gs430. The ECU was damaged and needs to be replaced. I really need some advice on what to do

Will my master key sync with the replacement ecu?

ECU is Used but is exact model # as the old 89666-30111

Am i better off ordering through the dealer and getting a new master key?

Thanks for any help you can give