Without Intelligent Key System

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS


System Description


SYSTEM DESCRIPTION
NVIS (Nissan Vehicle Immobilizer System-NATS) has the following immobilizer functions:
- Engine immobilizer shows high anti-theft performance to prevent engine start by other than the owner.
- Only a key with key ID registered in BCM and ECM can start engine, and shows high anti-theft performance to prevent key from being copied or stolen.
- If system detects malfunction, security indicator lamp illuminate when ignition switch is turned to ON position.
- If the owner requires, ignition key ID can be registered for up to 5 keys.
- During trouble diagnosis or when the following parts have been replaced, and if ignition key is added, registration* is required.
*: All keys kept by the owner of the vehicle should be registered with ignition key.
- ECM
- BCM
- Ignition key
- NVIS(NATS) trouble diagnosis, system initialization and additional registration of other Ignition key IDs must be carried out using CONSULT-III hardware and SECURITY CARD.
When NVIS(NATS) initialization has been completed, the ID of the inserted ignition key or ignition key IDs can be carried out.
- Possible symptom of NVIS(NATS) malfunction is "Engine cannot start". The engine can be started with the NVIS(NATS). Identify the possible causes according to "Work Flow". Without Intelligent Key System.
- If ECM other than Genuine NISSAN is installed, the engine cannot be started. For ECM replacement procedure, Additional Service When Replacing Control Unit.

PRECAUTIONS FOR KEY REGISTRATION
- The key registration is a procedure that erases the current NVIS(NATS) ID once, and then reregisters a new ID. Therefore the registered ignition key is necessary for this procedure. Before starting the registration operation collect all registered ignition keys from the customer
- NVIS(NATS) ID registration is the procedure that registers the ID stored into the transponder (integrated in ignition key) to BCM.

SECURITY INDICATOR LAMP
- Warns that the vehicle is equipped with NVIS(NATS).
- Security indicator lamp always blinks, when the ignition switch is in any position except the ON position.
- Security indicator lamp turns OFF, when the ignition switch is in ON position.