NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS
INTELLIGENT KEY SYSTEM
System Diagram
System Description
- The NVIS (NATS) is an anti-theft system by registering an Intelligent Key ID in to the vehicle and prevents the engine being started by an unregistered Intelligent Key. It has a higher protection against auto thefts that duplicate mechanical key.
- It performs the ID verification when starting the engine in the same way as the Intelligent Key system. But, it performs the NVIS (NATS) ID verification when inserting the Intelligent Key and performs the Intelligent Key ID verification when carrying the Intelligent Key.
- The mechanical key integrated in the Intelligent Key cannot start the engine. When the Intelligent Key battery is discharged, the NVIS (NATS) ID verification memorized to the transponder integrated with Intelligent Key is performed by inserting the Intelligent Key into the key slot. If the verification results are OK, the engine start operation can be performed by the push-button ignition switch operation.
- Locate the security indicator and apply the anti-theft system equipment sticker, forewarn that the NVIS (NATS) is onboard with the model.
- The security indicator always blinks when the power supply position is in LOCK, OFF and ACC position.
- Up to 4 Intelligent Keys can be registered (Including the standard ignition key) on request from the owner.
- The specified registration is required when replacing ECM, BCM or Intelligent Key. The registrations procedure for NVIS (NATS) and registration procedure for Intelligent Key when installing the BCM, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.
- Possible symptom of NVIS (NATS) malfunction is “Engine can not start”. The engine can be started with the Intelligent Key system and NVIS (NATS). Identify the possible causes according to “Work Flow”. Refer to Work Flow.
- If ECM other than Genuine NISSAN is installed, the engine cannot be started. For ECM replacement procedure, refer to Special Repair Requirement.
PRECAUTIONS FOR KEY REGISTRATION- The key registration is a procedure that erases the current NVIS (NATS) ID once, and then re-registers a new ID operation. Therefore the registered Intelligent Key is necessary for this procedure. Before starting the registration operation collect all registered Intelligent Keys from the customer.
- When registering the Intelligent Key, performs only one procedure to register simultaneously both IDs (NVIS “NATS” ID registration and Intelligent Key ID registration).The NVIS (NATS) ID registration is the procedure that registers the IDs stored into the transponder (integrated in Intelligent Key) to BCM.The Intelligent Key ID registration is the procedure that registers the ID to BCM.
- When performing the Intelligent Key system registration only, the engine cannot be started by inserting the key into the key slot. When performing the NVIS (NATS) registration only, the engine cannot be started by pressing the push-button ignition switch when carrying the Intelligent Key. The registrations of both systems should be performed.
SECURITY INDICATOR LAMP- Warns that the vehicle is equipped with NVIS (NATS).
- The security indicator lamp always blinks when the ignition switch is in the LOCK and ACC position.
NOTE：
Because security indicator lamp is highly efficient, the battery is barely affected.
Component Parts Location
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1. |
BCM M118, M119, M121, M122, M123 |
2. |
IPDM E/R E4, E5, E6, F7 |
3. |
TCM B45 |
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4. |
Push button ignition switch M131 |
5. |
Control device (detention switch) B20 |
6. |
Key slot M60 |
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7. |
Combination meter (Key warning lamp) M53 |
8. |
Driver side door switch B21 |
9. |
Security indicator lamp M29 |
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10. |
Stop lamp switch E110 |
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A. |
Behind the instrument lower panel RH |
B. |
Engine room dash panel (RH) |
C. |
View with trunk front finisher removed |
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D. |
View with center console assembly removed |
E. |
View with instrument lower panel (driver) removed |
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1. |
Trunk lid lock assembly (trunk room lamp switch) B352 |
2. |
Remote keyless entry receiver M134 |
3. |
Inside key antenna (console) M146 |
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4. |
Inside key antenna (trunk room) B41 |
5. |
Inside key antenna (instrument center) M75 |
6. |
Horn (high) E79, E80 |
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7. |
Horn (low) E81, E82 |
8. |
Hood switch E83 |
9. |
ECM M107 |
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A. |
View with trunk lid finisher removed |
B. |
Behind the display unit |
C. |
Back of the rear console assembly |
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D. |
Behind the trunk front finisher |
E. |
Back of the cluster kid C (lower) |
F. |
Behind the front bumper |
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G. |
Behind the instrument lower panel (assist) |
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Component Description
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Component |
Reference |
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BCM |
Description
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Steering lock unit |
Description
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Push-button ignition switch |
Description
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Door switch |
Description
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Key slot |
Description
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Control device (detention switch) |
Description
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Stop lamp switch |
Description
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TCM |
Description
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Steering lock relay |
Description
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Starter relay |
Description
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Starter control relay |
Description
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Security indicator lamp |
Description
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Key warning lamp |
Description
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