Does anyone know how to reflash the computer to make my other key start the car I don't want to pay another locksmith three to five hundred dollars can someone explain it to me how to do it myself

 

I dont think there's a way to flash another key and make it a master key. It has to be a master key to begin with. I sent my wifes ECU from her ES to this place here in florida and they sent it back with a master and another slave key so I dont think its a DIY type of thing. I'll see if I can find the link and post.it.

 

I don't know where you are located but here in Ocala ,FL Ray's locksmith I had him remove keys programed in my car so he could put a new one in my system. My mechanic found me a new key from his supplier for a slight fee then I went to Ray's to add it to my car's system. At the most it may be around $150 or less
Ray's Locksmith
25 NE 8th Ave
Ocala, FL 34470 352-629-0497