ERC Calculator
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For iPhone and iPad

ERC Calculator

Unlock your navigation system, simply.

Generate an ERC unlock code from your Toyota navigation unit's serial number.
Pick your model, scan the number, done.

Download on the App Store See how it works

The parts that usually go wrong, handled.

Hybrid models needing a different code, mistyped serials, the hassle of a refund. Each one is solved inside the app.

Hybrid vehicles at no extra cost

If your code does not work on a 68T model, the app issues a hybrid code from the same serial number once, free, and automatically. No form to fill in.

Learn more
Unlock code for NSZT-W68T A1B2 C3D4
If the code did not work
Try the hybrid code Free · once

Scan the serial with your camera

Point your camera at the navigation screen and the app reads the 16-digit serial. No risk of a typo.

0123 4567 89AB CDEF 16 digits recognised

A clear path when something goes wrong

From checking the cause to requesting a refund from Apple, everything runs from one screen. Apple reviews refunds, and we support you until there is a result.

  • Try the hybrid code
  • Check SD card and battery
  • Request a refund (Apple)

Three steps

See the full walkthrough
  1. 1

    Choose your model

    Pick your model number, such as NSZT-W68T, from the list. You can search too.

  2. 2

    Scan the serial number

    Scan the 16 digits on the navigation screen, or type them in.

  3. 3

    Buy and get your code

    Purchase through the App Store and your unlock code appears immediately.

Pricing

One payment per unit. No subscription.

68T series

¥3,000 (tax included)

NSZT-W68T, NSZT-Y68T, NSZN-Z68T
One free hybrid code

Earlier models

¥1,380 (tax included)

NSZT-Y66T, NSCN-W68 and others
See the full list below

Request a refund
in a few taps.

Apple reviews and processes refunds. We support you from the request through to the result.

  1. 1
    Choose "Request a refund"

    Open "Code not working?" on the unlock code screen.

  2. 2
    Pick a reason and submit

    Apple's refund screen opens without leaving the app.

  3. 3
    Apple sends the result

    The result arrives by email. We answer any questions while you wait.

More about refunds
‹ Unlock code Code not working? NSZT-W68T · Serial 0123…CDEF
  • Try the hybrid codeFree · once
  • Troubleshooting
  • Request a refund

Apple reviews refunds. We help you until there is a result.

CancelRequest a Refund
68T series unlock codeERC Calculator
¥3,000

Why are you requesting a refund?

  • I did not mean to buy this
  • It did not work as expected
  • Other

The code did not unlock the unit.

Submit

Apple refund request screen

Supported models

87 model numbers. The 68T series plus a wide range of earlier Toyota navigation units. Slide to find yours.

  • NSZT-W68T 68T series
  • NSZT-Y68T 68T series
  • NSZN-Z68T 68T series
  • NSZT-Y66T Earlier model
  • NSCN-W68 Earlier model
  • ND3T-W55 Earlier model
  • ND3T-W56 Earlier model
  • ND3T-W57 Earlier model
  • NDCN-D55 Earlier model
  • NDCN-D55/W55 Earlier model
  • NDCN-W55 Earlier model
  • NDDA-W55 Earlier model
  • NDDA-W56 Earlier model
  • NDDN-W56 Earlier model
  • NDDN-W57 Earlier model
  • NDDN-W58 Earlier model
  • NH3N-W58 Earlier model
  • NH3N-W58G Earlier model
  • NH3T-W55 Earlier model
  • NH3T-W56 Earlier model
  • NH3T-W57 Earlier model
  • NHBA-W62G Earlier model
  • NHBA-X62G Earlier model
  • NHDA-W57G Earlier model
  • NHDA-W61G Earlier model
  • NHDN-W55G Earlier model
  • NHDN-W56 Earlier model
  • NHDN-W56G Earlier model
  • NHDP-W56S Earlier model
  • NHDP-W57S Earlier model
  • NHDT-W55 Earlier model
  • NHDT-W57 Earlier model
  • NHDT-W57D Earlier model
  • NHDT-W58 Earlier model
  • NHDT-W58G Earlier model
  • NHDT-W59 Earlier model
  • NHDT-W59G Earlier model
  • NHDT-W60G Earlier model
  • NHXT-W55V Earlier model
  • NHXT-W56D Earlier model
  • NHZA-W58G Earlier model
  • NHZA-W59G Earlier model
  • NHZA-W60G Earlier model
  • NHZA-W61G Earlier model
  • NHZD-W62G Earlier model
  • NSZT-W68T 68T series
  • NSZT-Y68T 68T series
  • NSZN-Z68T 68T series
  • NSZT-Y66T Earlier model
  • NSCN-W68 Earlier model
  • ND3T-W55 Earlier model
  • ND3T-W56 Earlier model
  • ND3T-W57 Earlier model
  • NDCN-D55 Earlier model
  • NDCN-D55/W55 Earlier model
  • NDCN-W55 Earlier model
  • NDDA-W55 Earlier model
  • NDDA-W56 Earlier model
  • NDDN-W56 Earlier model
  • NDDN-W57 Earlier model
  • NDDN-W58 Earlier model
  • NH3N-W58 Earlier model
  • NH3N-W58G Earlier model
  • NH3T-W55 Earlier model
  • NH3T-W56 Earlier model
  • NH3T-W57 Earlier model
  • NHBA-W62G Earlier model
  • NHBA-X62G Earlier model
  • NHDA-W57G Earlier model
  • NHDA-W61G Earlier model
  • NHDN-W55G Earlier model
  • NHDN-W56 Earlier model
  • NHDN-W56G Earlier model
  • NHDP-W56S Earlier model
  • NHDP-W57S Earlier model
  • NHDT-W55 Earlier model
  • NHDT-W57 Earlier model
  • NHDT-W57D Earlier model
  • NHDT-W58 Earlier model
  • NHDT-W58G Earlier model
  • NHDT-W59 Earlier model
  • NHDT-W59G Earlier model
  • NHDT-W60G Earlier model
  • NHXT-W55V Earlier model
  • NHXT-W56D Earlier model
  • NHZA-W58G Earlier model
  • NHZA-W59G Earlier model
  • NHZA-W60G Earlier model
  • NHZA-W61G Earlier model
  • NHZD-W62G Earlier model
  • NHZN-W57 Earlier model
  • NHZN-W58 Earlier model
  • NHZN-W59C Earlier model
  • NHZN-W59G Earlier model
  • NHZN-W60G Earlier model
  • NHZN-W61 Earlier model
  • NHZN-W61G Earlier model
  • NHZN-X61G Earlier model
  • NHZN-X62G Earlier model
  • NHZP-W58S Earlier model
  • NHZT-W58 Earlier model
  • NHZT-W58G Earlier model
  • NMCN-D51 Earlier model
  • NMCN-W51M Earlier model
  • NMCT-D51 Earlier model
  • NMCT-W51 Earlier model
  • NSCN-W59C Earlier model
  • NSCN-W60 Earlier model
  • NSCP-W61 Earlier model
  • NSCP-W62 Earlier model
  • NSCP-W64 Earlier model
  • NSCT-D61D Earlier model
  • NSCT-W61 Earlier model
  • NSDD-W61 Earlier model
  • NSDN-W59 Earlier model
  • NSDN-W60 Earlier model
  • NSDT-W59 Earlier model
  • NSLN-W62 Earlier model
  • NSZA-X64T Earlier model
  • NSZD-W60 Earlier model
  • NSZN-W64T Earlier model
  • NSZT-W60 Earlier model
  • NSZT-W61G Earlier model
  • NSZT-W62G Earlier model
  • NSZT-W64 Earlier model
  • NSZT-Y62G Earlier model
  • NSZT-Y64T Earlier model
  • NSZT-YA4T Earlier model
  • NSZT-W66T Earlier model
  • NSCD-W66 Earlier model
  • DSZT-YC4T Earlier model
  • W60G Earlier model
  • NHZN-W57 Earlier model
  • NHZN-W58 Earlier model
  • NHZN-W59C Earlier model
  • NHZN-W59G Earlier model
  • NHZN-W60G Earlier model
  • NHZN-W61 Earlier model
  • NHZN-W61G Earlier model
  • NHZN-X61G Earlier model
  • NHZN-X62G Earlier model
  • NHZP-W58S Earlier model
  • NHZT-W58 Earlier model
  • NHZT-W58G Earlier model
  • NMCN-D51 Earlier model
  • NMCN-W51M Earlier model
  • NMCT-D51 Earlier model
  • NMCT-W51 Earlier model
  • NSCN-W59C Earlier model
  • NSCN-W60 Earlier model
  • NSCP-W61 Earlier model
  • NSCP-W62 Earlier model
  • NSCP-W64 Earlier model
  • NSCT-D61D Earlier model
  • NSCT-W61 Earlier model
  • NSDD-W61 Earlier model
  • NSDN-W59 Earlier model
  • NSDN-W60 Earlier model
  • NSDT-W59 Earlier model
  • NSLN-W62 Earlier model
  • NSZA-X64T Earlier model
  • NSZD-W60 Earlier model
  • NSZN-W64T Earlier model
  • NSZT-W60 Earlier model
  • NSZT-W61G Earlier model
  • NSZT-W62G Earlier model
  • NSZT-W64 Earlier model
  • NSZT-Y62G Earlier model
  • NSZT-Y64T Earlier model
  • NSZT-YA4T Earlier model
  • NSZT-W66T Earlier model
  • NSCD-W66 Earlier model
  • DSZT-YC4T Earlier model
  • W60G Earlier model

You can search by model number inside the app

Unlock your navigation system today.

The app is free to download. You pay only when you generate a code.

Download on the App Store