IVIS (INFINITI 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 "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) ".
• Confirm no self-diagnostic results of IVIS (NATS) is displayed before touching "ERASE" in "SELF-DIAG RESULTS" mode with CONSULT-II. 
• When replacing ECM, initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs must be carried out with CONSULT-II using NATS program card. 

Fig 1: CONSULT-II Display - SELF DIAG RESULTS

Courtesy of NISSAN NORTH AMERICA, INC.

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