NVIS (NISSAN Vehicle Immobilizer System-NATS): Description

If the security indicator lights up with the ignition switch in the ON position or "NATS MALFUNCTION" is displayed on "SELF-DIAG RESULTS" screen, perform self-diagnostic results mode with CONSULT-II using NATS program card. Refer to , " NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS) ".
Confirm no self-diagnostic results of NVIS (NATS) is displayed before touching "ERASE" in "SELF-DIAG RESULTS" mode with CONSULT-II.
When replacing ECM, initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs must be carried out with CONSULT-II using NATS program card.

Fig 1: CONSULT-II Display - Self Diagnostic Results
Courtesy of NISSAN MOTOR CO., U.S.A.

Therefore, be sure to receive all keys from vehicle owner. Regarding the procedures of NVIS (NATS) initialization and all NVIS (NATS) ignition key ID registration, refer to CONSULT-II Operation Manual, IVIS/NVIS.