Air Condition Fan Switch

why is all my warning lights coming on and speedometer not working?
after experiencing a noticeable bump when gears were shifting, all my warning lights came on and my speedometer quit working…my air conditioning switch and my fan switch when turned on makes the car’s engine rev up
with out knowing the make of the car I can only guess,there is a built in voltage regulator.in the alternator,may have went bad also there is a computer that will lead you to the problem it needs a diagnostics check
[affmage source="ebay" results="3"]air condition fan switch[/affmage]
[affmage source="amazon" results="3"]air condition fan switch[/affmage]