ABS light on ?

[rkpatt]

These things just happed today which has been rainy weather day . The ABS light came on when I started my 1994 F250 today . Also when I turned on the lights the right turn signal indicator light came with a solid green . The green ligh eventually went out but the ABS light is still on . I guess I will wait a day or so for things to dry out but I sure like to know waht to expect . If it is as simple as a wet connection , where do I look ? If it is more what to I test ? - Thanks