how does it ground ??

Thanks guys for all the imput. I'm not sure if anyone can help me on this. When the key is in the "ON" position dash lights are working except the signal light indicators come on but are very dim ( the flasher & the outside lights are flashing fine) (This is the same with the Hazzard switch) When I start the car the indicator lights are good. It is like there is low voltage in the "ON" position until the car is running. I guess this is not a real problem, I was hoping someone could try their car and see if this in normal . I don't want to pull the ignition switch. Thanks