It could.See related question below for more info.
Nothing
On startup it should light up. You are saying it is flashing while driving or running, so I think you can take your car to autozone and have a free engine scan to see what the problem is.
There are dozens of things that turn the light on. TAke it to auto zone and have the codes read.
Leaving from Yreka, California and driving to Juneau, Alaska it is about 2,362 miles, driving time about 48 hours.
43 hours of driving time
That is commonly known as the "Check Engine" light. The light is on because the vehicle's on board diagnostics as detected a problem. Have a trusted mechanic take a look at it soon. If the "Check Engine" light ever flashes while you're driving, stop the car when it is safe to do so and shut off the engine immediately. If you continue to drive the car with that light flashing you risk doing serious expensive damage.
About seven hours of driving time.
If your long driving it will take you 18 hours 4 minutes
It will require about six hours of driving time.
how long does it take to get from whitehousetx to Disneyland California
Driving from Corona to Riverside will take between 20 and 30 minutes depending on traffic conditions.