Does any1 know of comen wiring faults for a renault megan grande scenic 05?

Does any1 know how to fix the electrics on a 05 plate renault megan gande scenic???

the problem:

when a new fully charged battery is put in the car the lights and window wipers turns on when the switches are turned of, and when trying to tow start it the dash board lights die then later come back on then off again does anyone know any comen wiring faults?????