Hello. 2010 g37x with about 92k on her. Recently got tuned on ecutek, and out of nowhere tonight my key fob wasn’t working so i figures just start it manually.... car wouldn’t turn on, car won’t unlock or lock, and when i jumped the car, same exact thing.. Car makes a weird knocking noise when i hit the unlock button in the cabin of the car as well.

 

Are you able to pull any codes? Does the car start with with Jump? Have you tried replacing the Key Fob battery?

 

It was just the battery lol. at first thought maybe bcm, but battery wasn’t taking a charge at all.. was stuck at 5 volts so took that right out and bam

 

Glad to hear it was a simple fix!