This utility app decodes ERC serial numbers to generate unlock codes for Japanese car audio and navigation systems. It helps restore full functionality to units locked after battery disconnection or repairs.
1.41
August 24, 2026
Added support for newer versions
ERC Car Audio/ NAVI Unlocker generates ERC unlock codes for Japanese car audio and navigation systems. These codes are needed to restore functionality to units that become locked after battery disconnection or repairs.
To find your 18-digit serial number, press and hold the main button on your navigation player and cycle your parking lights 3-4 times until a new screen appears. Press the active button on this screen to view the serial number.
The app supports a wide range of Japanese car audio units, including models like NDDN-W57 and NHZN-W58. However, it does not support newer multimedia models found in cars manufactured after 2016, such as NSZT-W68T.
Yes, ERC Car Audio/ NAVI Unlocker is completely free to download and use. There are no costs associated with generating unlock codes or using the app's features.
Once unlocked using the generated ERC code, your car's audio unit will restore various functions. This includes the radio, CD player, DVD player, Bluetooth, and navigation system, where applicable.
ERC Car Audio/ NAVI Unlocker is available for iOS devices, including iPhones, iPads, and iPods. It is designed for mobile use to assist you directly with your car's system.
The app was last updated on November 22, 2020, with version 1.3. While there haven't been recent updates, the core functionality for generating unlock codes remains stable for supported units.
No, ERC Car Audio/ NAVI Unlocker is ad-free. You can use the app to generate unlock codes without any interruptions from advertisements.
