when you use any kind of electrical component in your vehicle, it draws power from the battery , which in turn the alternator replaces.... you might want to get your alternator checked at your local autozone / advance auto as it might not be generating the output needed...this is the usual case...a simple test you can do is start your car... disconnect your positive battery cable...if the car stays running turn on your headlights, radio , wipers, and if the car stalls out... your alternator needs replacing....( note the fact that in most every vehicle...there will be some "dimming" of lights when you use electrical components....)
On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.
Most likely a fuse.
Blinking lights on dash and exterior lights may indicate a bad ground wire or a faulty headlight switch. Both would cause those problems.
Faulty ground to the dash.
your alternator is going bad
the dash and radio lights are supposed to dim when the headlights come on. Make sure you have the brightness of the dash lights turned up as much as possible.
my headlights and dash lights stopped working on my 2007 yamati strada RX150
headlights and dash lights in 2001 sunfire wont turn on.
What year is the vehicle? Did you check the fuse?
If you have no battery then you have no power.
It may be wired wrong.
in dash lights