The vehicle imobilizer system uses a chip in the key (no battery). There is a sensor unit in the steering column that looks for the "correct" key. If it doesn't find it, the vehicle will not inject fuel into the engine, and so, will not start or run.
The NISSAN Vehicle Immobilizer System will not allow the engine to start without the use of a registered key. If the engine fails to start using a registered key (for example, when interference is caused by another registered key, an automated toll road device or automatic payment device on the key ring), restart the engine using the following procedures: Jul 22, 2019 · Nissan Immobilizer system fault codes If you use a un-register key or invalid ID key to start engine over 5 time,the ECU will lock engine to turn protection mode.If you in this situation,you can not start engine,even you use register working key.Now you need to restart to perform initialization to unlock engine protection mode