" But what boggels me now is when i try start car wipers also turn on and no my wiper switch not on"
"Dead" (low charge) battery will do this.
Charge the battery well and test.
Engine off. Voltage should be 12 to 12.5 across battery terminals.
Engine running. Voltage should be 14 to 14.5 across battery terminals.
Was the charge light on or flickering when the engine was running?
And don't disconnect the battery when the engine is running. You could fry many of the electronic components in the car.
