That is the top of the TCM. It is the high voltage junction box. The orange wires on the right are from the battery. The 3 pair going out the left go to (from back to front) the Cabin heater, AC compressor, and DC-DC converter. I don't know what's in there but I think there are high voltage fuses in there. I don't think you can get just the high voltage junction box as a separate part but I really don't know. What is the problem that you need to fix?