I was having the same issue as you at first and it ended up being the 140A fusible link on the positive terminal. I fixed problem and now the car comes on but it’s not reading a key at all. I can put my finger in the dash and it goes from lock to on but it won’t start for nothing . My Machanic who fixed the fusible link told me like “bro your car is on. Idk how but it’s reading that you don’t have a key and it’s powering on still.” So he mention that since it’s actually on , I could put the key in the slot and he can jump the starter wire to get it started .. paid him to $60 to give it a try & Now I’m in the car . It’s started . Been in here all day and I’m scared to turn it off or even take the key out of the slot because I tried it once and the car took a “crap” & cut straight off while I was double parked in the middle of the street. Luckily my mechanic didn’t get too far and he came back to jump it AGAIN for another $50! Now I’m still in the car and it’s 4am and idk what to do… do I just need to get the key reprogrammed? Could it be the bcm? I drove the car to a locksmith earlier and he said he had someone with a similar problem so he tried to make the new key or reprogram it or whatever and the bcm lost all connections & ability to connect or see any key at all so he had to get it towed to Infititi for whatever reason. I’m so lost. And I need my car but can’t stay in here and leave it running forever please help!!!

 

Any update on what you went though?

 

So bro just stayed in the car forever?