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 applications
- 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 depend on the model’s 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. By performing an internal installation, there is no need for external wiring modifications, offering a clean, OEM-like appearance and permanent security override functionality.
⚠️ Warning: Professional Handling Required
Working with internal components of the navigation unit exposes sensitive electronics to electrostatic discharge (ESD) and the risk of permanent damage.
Always follow ESD safety precautions and use proper tools when soldering or handling the PCB.
Internal installation should only be performed by experienced technicians.
Working with internal components of the navigation unit exposes sensitive electronics to electrostatic discharge (ESD) and the risk of permanent damage.
Always follow ESD safety precautions and use proper tools when soldering or handling the PCB.
Internal installation should only be performed by experienced technicians.
To perform an internal CAN filter installation, follow these steps:
- Disassemble the Navigation Unit
Carefully open the unit to gain access to the mainboard components.
- Attach the CAN Filter PCB
Secure the CAN filter board to the mainboard using hot glue, double-sided tape, or another proper method to avoid movement and short circuit during operation. - Locate Connection Points
Identify the necessary connection points on the mainboard as shown in the reference image below.
- Modify the CAN Bus Line
Remove the two resistors on the CAN bus line to allow proper integration of the emulator.
- Connect the Filter
Solder the +12V, GND, and CAN lines from the filter to the mainboard, following the diagram below.
- Reassemble and Test
Reassemble the unit and apply power to start the emulator learning process, and verify proper startup and functionality.
⚠️ Final Important Note: Initial Code Learning Process
When the CAN filter is connected for the first time to an AIVI unit, it must automatically learn the unit’s security codes. This process takes approximately 30-60 seconds. During this process:
When the CAN filter is connected for the first time to an AIVI unit, it must automatically learn the unit’s security codes. This process takes approximately 30-60 seconds. During this process:
- The navigation unit displays “SYSTEM IS LOCKED. RED. PLEASE CONTACT YOUR NISSAN DEALER”.
- The CAN filter’s LED blinks to indicate learning is active.
- When learning is finished, the LED turns off.
After learning is completed, restart the unit by disconnecting the power or removing the radio fuse if installed in the car
✅ This process occurs only once per unit. On future startups, the system will boot immediately.
🔁 If the CAN filter is installed in a different unit, the learning cycle will automatically run again.
⚠️ Do not disconnect or power off the system during the learning phase.
▶️ Watch: CAN Filter Initial Learning Process on AIVI unit
This short video demonstrates the first-time learning process of the CAN filter when connected to an AIVI navigation unit.
You’ll see the LED blinking during code learning and the functional unlocked unit once the process is complete.
GOOD MORNING
Is it possible to use the CAN filter on 25847 AIVIP33A0. Mounted on a Nissan Qashqai. Are the installation instructions the same as those for Connect 4? With that type, the LED keeps flashing.
Hello, I didnt tested it on this unit yet. So I’m not sure should we install it as for Connect 4 or as AIVIL42P0 (J1 short).
Hi this can filter can going to the AIVIV20 ?
Hi,
Yes, CAN filter works with AIVIV20
and can I install it in any car and use it?
CAN filter will bypass security only. If you will install in non-compatible car, you will have other issues, as the radio will not receive proper CAN messages for ignition On, and others.
You can install radio with can filter in any other compatible Nissan/Renault car and radio will be functional and unlocked
Hello! Can i find a diagram of connectors near antennas of aivil40? I want to install it in a 2017 xtrail and before starting to build an adapter frame, i need to know i have all connectors ready. Thank you!
Hi. I do not have a full wiring diagram for this model.
Buongiorno sto installando l’emulatore per un Nissan AIVIP32R0,seguendo le connessioni relative al NISSAN CONNECT 4,ma non riesco ad uscire dal blocco.
Il led arancione dell’emulatore è sempre lampeggiante, può aiutarmi? Devo variare qualcosa nei collegamenti? Attendo notizie.
Angelo Manuguerra
Ciao,
Hai dei ponticelli saldati sull’emulatore? Questo tipo di unità non richiede ponticelli saldati e dovrebbe funzionare immediatamente. Verifica di aver effettuato correttamente i collegamenti del bus CAN.
Buongiorno, grazie della risposta, effettivamente levando il ponticello sull’emulatore l’unità si è accesa ed è funzionante. Poichè devo installare l’emulatore all’interno dell’unità e non ho la macchina del cliente a disposizione, staccando il pin 44 dalla massa l’unità non si riaccende sul banco: devo collegarlo internamente a massa per farlo funzionare in macchina?
Angelo
I have fitted this emulator into an F16 however I still have the locked RED message.
I have:
Removed the two can resistors inside the board
Soldered J1 jumper (also tried with jumper disconnected)
Tried the +5v line as shown in the picture, but I have also tried +12v directly from the connector
I see a steady flashing orange light from the emulator. Any help would be so highly appreciated
Please write me model/part number of the navigation unit on your F16 Juke. Is it AIVIL42P0 or different ?
If its a AIVIL42P0, you have to wait learning process to complete as shown in video. For this type unit J1 must be shorted
Hi
Fitted to a 21 Juke, radio sat nav etc all work which is great but reversing camera can not be accessed by manual button or by selecting reverse. Scan with Thinkcar shows audio not installed. Any ideas?
Hi, radio should be configured with correct reverse camera option. It can done using nissan consult diag tool.
Hi, do you know if the emulator works with YBN-AIVIV20 for Renault, the connectors look the same as for Nissan so maybe it will work?
Hi, i have not tested it on AIVIV20 for Renault yet. It must be tested.
hi can you unlock the nissan juke 2020 head unit thank you
Hi, What you mean unlock Nissan Juke head unit? If you want to use a 2nd hand unit, and have a message “System is Locked”, it is possible to solve this problem with CAN filter (security emulator). CAN filter can be installed on the radio wiring or inside the radio.