So if you have an issue related to a “ECU unplugged” dashboard error, and you find that the 15A fuse (D) has also blown, check to see if the rear speedo wires have been crushed (pic below). It’s a fairly common occurrence for DIY’ers when it comes to the rear brake caliper for pad replacement and/or rear wheel R&R. It was a bear to chase down when this person said only thing they did was replace the front turn signals(!). Hope this helps lessen the headache for someone else.