NDDN W58 Audio Unit Unlocking Guide
I have a Vitz car with an NDDN W58 audio unit. Recently, after removing the car battery, the unit became locked. Here’s how I managed to reboot and unlock it.
Required Files
- NDDN W58 Map disk
- ERC decoder software (Windows only)
Steps to Unlock
-
Burn the Map disk to a CD and insert it into the audio unit.
-
Press and hold the confirmation button (shown below) while turning the parking lights ON/OFF three times.
- You will see this screen:
- Navigate to the ERC menu:
- Open the ERC decoder on a Windows machine:
- Enter the ERC code and press ‘Done’:
- The unit will complete the booting process and eject the disk automatically.
That’s it! The audio unit should now be working perfectly. If you have any questions, feel free to reach out.