Monitor channels, read and clear diagnostic trouble codes, see and change settings. Perform initial setup of your Rebel ECU. This app allows you to connect to your Wi-Fi enabled Haltech Nexus ECU. In it you can view any channel as you would do within NSP, and change most settings and table contents. It also allows you to view diagnostic trouble codes (DTCs) and clear them, as well as configuration errors such as a setting value out of range. You can choose from a range of metric and imperial units. If you have a Rebel ECU, you can use this app to access the setup wizard to configure your ECU for the first time. Note: Nexus firmware version 1.26 or later is required to use the mobile app. This can be updated using NSP.