Free ERC Calculator
Please enter 16-digit code
100% free · unlimited uses · no sign-up
Supported Models
This site supports W68T, Y68T, Z68T, W68, Y68, Z68 and all pre-68 series models. It converts the 16-digit ERC code from the factory car-audio anti-theft security lock (Japanese dealer-option head units) into an 8-digit unlock code. See the full list of compatible head units.
How to Use
・This site provides unlock codes (8 digits) for Japanese car audio systems.
・Enter the unlock code in your audio unit's service menu to unlock all functions.
Reasons for ERC Lock
・Your unit may become locked after a battery change (dead or replaced battery), removing the audio unit, or part replacement.
・It can also appear on a used or auction-bought car, when a security lock set by the previous owner is still active.
How to Check ERC Code: 2 Methods
1. Press and hold the [CURRENT LOCATION] button on the navigation unit while turning the small lamp ON/OFF 3-4 times to enter service inspection mode.
2. In the picture quality adjustment mode displayed by long-pressing the [MENU] button, alternately touch the upper left and lower left of the touch screen 3 times (upper left → lower left → upper left → lower left → upper left → lower left) to enter service inspection mode.
Select the Security Code Entry button on the first or second/third page of the service information to display the 16-digit ERC code.
Frequently Asked Questions
What is an ERC code?
ERC (Electronic Recovery Code) is the anti-theft lock built into Japanese factory car audio and navigation units. After a battery change or repair, the unit shows a 16-digit code and asks for an unlock code.
Is this really free?
Yes. Free, instant, no sign-up — and it will stay that way.
Which models are supported?
All W68/Y68/Z68-series units (W68T, Y68T, Z68T, W68, Y68, Z68) and every earlier generation.
How fast is it?
Instant. Enter the 16-digit ERC code and the 8-digit unlock code is calculated on the spot.
Does it work on Japanese import (JDM) vehicles?
Yes. It is built for JDM vehicles worldwide — importers and owners in the US, UK, Kenya, Mongolia, Pakistan and beyond use it every day.
Why did my unit lock itself?
Power loss triggers the anti-theft protection. It is normal after battery replacement — not a malfunction.