A few weeks ago, I noticed the front wipers on my 2016 Fit were not working at all. The shop I took it to said it was not a fuse or electrical issue from what they could tell, but rather the motor, which they sourced for me and then replaced. (As a side note, apparently this part is nowhere to be found. A Honda dealer told me to check junkyards.) Unfortunately, after replacing the motor, they discovered that the actual issue appears to be a faulty MCU, which apparently is sending too much voltage to the motor. According to the shop, this part is not readily available new, but they said they'd attempt to find a used one. At this point, it's been well over a week since I've heard anything from them, and I think I should start looking for the part myself. However, I'm not entirely sure I know what to look for.

Does anyone know the part number/official part name for the MCU (or MICU) that is connected to the front wiper motor? Bonus points if you can direct me to a reputable source to get one. Really appreciate any help/insight!