Nissan & Infiniti NATS5 A/B Type IMMO Emulator – MK3 | Pincode 5523

The MK3 NATS5 A/B Type Immobilizer Emulator is designed for Nissan and Infiniti vehicles equipped with the NATS5 or NATS5.6 immobilizer system.
It is used when the original NATS ICU/immobilizer module is faulty or when immobilizer bypass is required for diagnostic or repair purposes.

This NATS5 emulator replaces the communication between the ECU and immobilizer, allowing the engine to start normally after programming.
Programming must be performed using any key programming tool that supports Nissan NATS5 systems.

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🔧 Features

• System Type: NATS5 / NATS5.6 Immobilizer Emulator

• Compatibility: Nissan & Infiniti models (detailed list below)

• Emulator Type: NATS5 A & B versions supported

• Manufacturer: MK3

• Programming Required: YES – must be programmed like adding a new key

• Pincode: 5523

• Condition: Brand New

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⚙️ Technical Overview

Nissan vehicles equipped with the NATS5 immobilizer system often experience issues such as:

• Engine cranking but not starting

• “Key not recognized” errors

• Faulty NATS antenna/reader failures

The MK3 NATS5 Emulator:

• Bypasses the immobilizer signal

• Works with both A-Type and B-Type NATS5 systems

• Allows the ECU to start without replacing expensive immobilizer components

• Supports all major Nissan/Infiniti diagnostic and programming tools

This emulator is highly useful for mechanics and locksmiths working on older Nissan/Infiniti models where OEM immobilizer units frequently fail.

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🛠️ Installation & Programming Steps

1. Disconnect the original NATS5 immobilizer cable from the vehicle.

2. Connect the MK3 NATS5 Emulator in its place.

3. Program the emulator as if adding a new key using your key programming device.

4. When prompted for PIN, use 5523.

5. After programming completes, start the engine.

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🚗 Vehicle Compatibility

Nissan Models

Infiniti Models