My sis in law has a 99 Civic with a few electrical problems. A year ago she took it to a Honda dealer after her battery died. They replaced the ECM because they said it fried the battery and after that the...

1. Speedo does not work.
2. AC only works on high.
3. Wipers only work on high.

All of the above were working before she brought the car to the dealership.

Anyone have any ideas?