As title says, rapid blinker on driver side. Front signal works, all back lights on that side work, just fast and no sequence in the back.
Can't find concrete answer. Even from dealer... "I don't know". Think they are trying to get me to spend $ for me light.

 

usually means a bad bulb from what I have encountered.

 

2014's are led

 

Blown load resistor possibly. Normally if a 'module' doesn't see any load it will shut off the output.
That could realistically mean a blown Semiconductor / Load resistor etc.

Did anything happen immediately preceding the failure ?
Eddie