NISSAN Vehicle Immobilizer System
Nissan Vehicle Immobilizer System (NVIS) must be initialized after Engine Control Module (ECM) has been replaced. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. See IMMOBILIZER SYSTEMS under DOORS, LOCKS & ANTI-THEFT in ACCESSORIES & BODY, CAB article.