LH turn signals inop. front and rear.
 

My 2014 Captiva, LH turn signals front and rear inop. I replaced both bulbs since LH indicator on dash did not flash rapidly like when one bulb burnt. Emergency lights work front and back both sides, I have also replaced turn signal/headlight flash arm on steering column. Fuses checked good and still replaced turn signal fuse. I am lost, any help?

Phew... man, I am not sure. I have a shop manual for my 2015, maybe a wiring diagram for the front signals may help?

https://cimg9.ibsrv.net/gimg/chevrol...88987e67d6.png

My guess by looking at the diagram, the issue is between the Body Control Module, and X3 wire #30. I don't have much knowledge in understanding how the turn signals operate on modern cars, so I hope someone else can chime in with more knowledge.

broken wire / loose connection?

Use a DMM or bulb to test continuity. Don't forget to check grounds too.