Hello,
my 350z doesn’t unlock with the central locking at all and also the windows don’t go down and it cranks but doesn’t start and headlights are locked on whenever i turn the key to on position,

i’ve tried replacing the crank and cam position sensors and have also checked all grounds and battery connections,

i’ve heard this could be a problem with the immobiliser but i don’t have the red light on the dash so don’t think it’s that, i’ve also tried resetting the ecu and the locking system but neither did anything, have also replaced the key battery

please help this is getting annoying ))

 

Sounds like a problem with the BCM. Have you scanned the vehicle for fault codes? What's the history of this Z? Did anyone replace computer modules such as the BCM or ECM on it recently or in the past?
-Icer