ABS, ECS, DBC all popped up

It sort of doesn't matter. If they are lighting all of a sudden, each one needs to be checked using a sensor code detector, which you can buy on amazon or any local parts store pretty inexpensively. Or you can take it to a shop and have them do it. That should tell you whether the sensors have gone bad (possibly from getting wet) or whether there is an actual problem with each or any of those systems (possibly from getting wet). Just don't ignore them. Good luck!