Section 156 (Immobilizer System): Description: Notes

WARNING: This page is about a different car, the 2002 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Nissan Vehicle Immobilizer System (NVIS) Nissan Anti-Theft System (NATS) has the listed immobilizer functions:

Since only NVIS (NATS) ignition keys, whose ID numbers have been registered into the ECM and IMMU of NVIS (NATS), allow the engine to run, operation of a stolen vehicle without a NVIS (NATS) registered key is prevented by NVIS (NATS). NVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of NVIS (NATS).
All of the originally supplied ignition key IDs have been NVIS (NATS) registered. If requested by the vehicle owner, a maximum of 5 key IDs can be registered into the NVIS (NATS) components.
The security indicator lamp blinks when the ignition switch is in "OFF" or "ACC" position. Therefore, NVIS (NATS) warns outsiders that the vehicle is equipped with the system.
When NVIS (NATS) detects trouble, the security indicator lamp lights up while ignition key is in the "ON" position.
NVIS (NATS) trouble diagnoses, system initialization and additional registration for other NVIS (NATS) ignition key IDs must be carried out using CONSULT-II hardware and CONSULT-II NVIS (NATS) software. Regarding the procedures for NVIS (NATS) initialization and NVIS (NATS) ignition key ID registration, refer to the CONSULT-II OPERATION MANUAL IVIS/NVIS.
When servicing a malfunction of the NVIS (indicated by lighting up of security indicator lamp) or registering another NVIS ignition key ID No., it is necessary to re-register original key identification. Therefore ensure to receive ALL KEYS from vehicle owner.