Identify the input and output roles
A Wii U Pro Controller used as an input to Titan Two and a Titan Two emulating that controller on a Wii U are different connection paths. The game sees the output profile presented by the adapter, while Device Monitor reports inputs connected to the Titan Two. Establish which link you are configuring before changing the Bluetooth settings.
For output to Wii U, check that your target game supports a Wii U Pro Controller. A controller working in the console menus does not establish that a game requiring a different controller type will accept it.
Prepare the Bluetooth hardware and storage
ConsoleTuner’s release history lists the Bluetooth Wii U / Wii output setting and the console connection files installed through the SD-card Configure command in Device Configuration. With the Bluetooth module and microSD in place, connect PROG to Gtuner IV, configure the card, and confirm that the Wii U Bluetooth output is available.
Check the exact protocol rather than selecting a Nintendo Switch output because both platforms use Nintendo controllers. The release notes list them separately.
Confirm pairing before changing mappings
Pair and verify basic input with no remap active, using the Wii U controller registration interface. If the Titan Two is detected by Gtuner IV but the Wii U cannot see its output, inspect the Bluetooth module, card setup, and output setting first. Once the console accepts it, test the target game with the same controller profile before making further changes.
Sources
Titan Two AI publishes these guides independently. ConsoleTuner makes the Titan Two device and Gtuner IV.