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Misfire detection.
The button on your dashboard
Low refrigerant charge?
A low oil level can cause the oil light to blink on a 1995 Honda Prelude. A faulty sensor can also cause this.
Worn brake pads can cause the brake light to blink on the dash in a 1993 GMC Sierra 1500. This can also be caused by a faulty light.
its a ground wire
Check to see if your gas cap is tight.
It is indicating that there is a fault with the engine of the car. You need to take it to a garage for repair/service.
A loose connection in the wiring
could be a problem with the sesor in the emergency brake. a bad connection there could cause the light to blink with the vibration of the car running On some cars, the brake warning light will blink if the parking brake is set, and you drive... it could be a failed parking brake switch, assuming the brake is not applied. It is supposed to blink to get your attention. One car that does this is the Mitsubishi Starion, there are probably some others, too.
battery light on 2000 f250 will blink if battery is not properly charged. an example is if you have been sitting all day with stereo olaying and engine not running, you have run battery down some. after starting engine and driving, the battery light will blink while alternator charges until battery is fully charged i have only experienced this at night when lights are on creating extra load for alternator ,after running battery down with stereo all day
That's the OD warning light, Check wiring, relay, Solenoid, and switch