Went to start my truck today have not ran it for about a week, turned the key and motor did not turn over but the dash board lights are flashing on and off about every second, take key out and still does it, the odometer and the red light on dash just keeps flashing and when you have door open the overhead light flashes too, anyone ever seen this, THANKS.

 

Key on/off/on/off/on see if it throws a code.

 

The code will show up in the odometer area.

 

Do you have a security system installed?