07 Maxima. The car battery needed replaced. Everything else was fine. Replace the car battery and the keyfobs/keys are not recognized any more. Everything else works great but can not get the ignition out of the lock position even with the mechanical key. Checked all fuses. It's as if the car is not recognizing the signal from the key/fobs. Wondering if a relay may have went but not idea which relay would interfere with this...... Any help greatly appreciated.