Every time I turn my car on, the dash lights up with all of these errors. It also doesn't think it is in Park sometimes when I shut off the car. I ran diagnostics and got the following error codes: P0856, P1793, U0121. I've been researching for hours and only found generic error code descriptions, but people seem to think the problem may be the wheel hub. Another forum suggested it could be as simple as finding and replacing a bad fuse that may have shorted out along with disconnecting the battery to reset the codes. Unplugging the battery didn't work, and I have no idea which fuse could be bad, but I'd really rather not pay a dealer for hours of labor to figure out the problem and then overpay for whatever parts I need. Please help!