Location
Kaunas, Lithuania
NISSAN CONNECT 4 – AIVIL42P0: CAN Filter Installation Guide
The Nissan Connect 4 navigation unit (AIVIL42P0) becomes immobilized when removed from its original vehicle, preventing its use in another car or for extended bench testing. Typically, the first time after removal, the unit remains operational on the bench for approximately 30 minutes before displaying the message:
“SYSTEM IS LOCKED. RED, PLEASE CONTACT YOUR NISSAN DEALER.”
Once this message appears, the unit is locked and cannot be used or tested further. Unfortunately, Nissan dealers are generally unable to assist with unlocking previously used units.
AIVIL42P0 unit used in:
- Nissan Juke F16 2018-2025
- Nissan Altima L34 2018-2025
- Nissan Micra 2018-2025
- Nissan Rouge T33 2020-2025*
- Nissan Z RZ34 2022-2025*
*Note: Units used in non-EU markets typically do not have the immobilizer function activated.
Part numbers:
- BOSCH Part numbers:
7512751432, 7513752312, 7513751608, 7503751278, 7503751402, 7503751219, 7505751490, 7505751738, ….. - NISSAN Part numbers:
25915 6PM0A, 25915 6PM0B, 25915 6PM1B, 2591A 6PM1A, 2591A 6LJ0A, 2591A 6RR0A, 2591A 6RR0C, 2591A 6GP0A, ….
External Pictures of the system:
Connectors quantity and type on the back panel might be different and depends on model hardware configuration.
Testing on the bench
Examining the system wiring in the car, you can notice that ACC and Ignition wires are not available in the wiring anymore, only constant power is supplied to the system. The system wakeup is now carried out over the CAN bus. However, examining system hardware reveals that ACC and Ignition signals over separate wires are still supported internally. This discovery allows the system to be powered on the bench by applying these signals to the corresponding pins.
External CAN bus filter installation
To test the system on the bench while overriding its security—or to permanently install the radio in a different car—a CAN filter (emulator) can be installed on the external wiring.
Important! The CAN bus filter must be configured for this unit type by soldering jumper J1 on the PCB.
Connection & Configuration
- Power Supply:
- Connect the CAN filter’s +12V and GND pins to constant power.
- CAN Connection:
- Connect the CAN filter CAN2 lines to the unit’s V_CAN lines.
Testing Scenario:
- For bench testing, only the CAN bus connection between CAN2 (emulator side) and V_CAN (unit side) is required.
- CAN1 connections can remain unconnected during bench tests.
Vehicle Installation Scenario:
- For in-vehicle installation, the CAN1 connections must also be connected.
- This involves cutting the V_CAN wires in the car’s wiring harness and connecting the CAN filter in series with the unit.
Internal CAN bus filter installation
The CAN filter can be installed inside the navigation unit, providing a more integrated solution that allows the unit to be used seamlessly in any compatible vehicle.
Key Considerations:
- This installation requires advanced electronics knowledge and soldering skills.
- It is recommended for professionals only due to the complexity and risk of damaging internal components.
By performing an internal installation, there is no need for external wiring modifications, offering a clean, OEM-like appearance and permanent security override functionality.
📢 Upcoming Update:
Detailed instructions, including pictures and information on the internal CAN filter installation, will be added soon. Stay tuned! 🙂 🚧
