The OBD2 system will not BLINK codes for you. It requires a engine scanner to read the codes. HAVE ENGINE SCANED. Some parts stores will do that for free.
it might need a new bulb - they often blink when they are about to die.
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.
one of the lights is not working
your blinker will turn on but not blink if a bulb has gone bad on that side or if your relay or fuse has gone bad
probably got a short somewhere.
there is something wrong with the wires. take it to a dealer to let them check it out!
Look from the outside. Either the front or back bulb is burned out.
Blink Blink was created in 2001.
The alternator may be going bad.
its a 2 second job for my mechanic he does it in the blink of an eye