Wiring problems of the 2010 Subaru Forester

All the lights on the dash came on at once . The non skid, check engine , cruise lights wouldn't go off . I took it to the Subaru dealership and they made out like it was nothing . I took it 3 different times they ended up charging me $500 dollars and never fixed anything. In a months time they came back on. I've had them turned off several times for them to come back on in 2 days time. I just recently put it back in the garage and was told the scanner found various codes. They cleared all codes , but code p0057 kept coming back for communication between antilock brakes and ecm. Possible cause- wiring, abs module,or ecm.