https://docs.emtronaustralia.com.au/engine-management/emtune/ecu-password-protection/index.htmlECU Password Protection All Emtron ECU’s have the ability to be locked to prevent access from others This function is access through the main file menu The Password Protected File cannot be viewed or recovered unless the correct password is known. Removing Password Protection If the password is known, this can be done through the main file menu using the Clear Password functionHugoen-us