1. Your ECU must NOT be locked by a previous tuner/tuning system such as ECUtek, MazdaEdit, BRZEdit, or any other potential tuning suite available for your vehicle. If your ECU is locked you will most likely experience a OFTCODE 10003 while trying to read.
    • If you believe your ECU is locked, please contact us using the form on our site for information about how to proceed next.
  2. OFT must be NEW (or previously uninstalled from any other vehicle). An OFT that is installed on another vehicle/ECU will NOT have the read option available within the TUNING menu
  3. Be sure your Key/Ignition is in the ON position. 
    • Not accessory, or OFF.