The ABS light will come on when the charging voltage drops below 10volts.
The OVP is the overvoltage protection relay - a notorious culprit for problems. It is located behind the battery behind a removable plastic cover. It is usually a silver relay with a red top and two 10amp. fuses under a clear cover. Check to see that the fuses are ok and if you can remove the relay, shake it to see if there is anything loose inside.