Daytime running lights and wipers wont work

1997 jetta, the daytime running lights and wipers wont work because the parking brake light is on. i looked at it this morning and when the car is not running, just the electrical system on everything works okay, but when i start the car the brake light comes on (very dim) and the lights and wipers wont work. could this be a problem with the relay, getting power from somewhere else, or shorted wires, i dont think its a shorted wire because the lights wouldnt come omn at all if that was the case