No left turn signal code mid 216 PSID 17 FMI 6

Well if that’s what it says, try first to unplug the trailer pigtail, and run your test again.

What year is the Volvo ?

 

Did you check to see which one wasn’t functioning? It’s either a fuse under the hood on the firewall or a bulb out.

 

Left side of truck dash, red triangle button underneath air vent and headlight switch.

 

Next step is to use a multi meter or a test light at the plug and see if it’s getting power. Those Volvo cords tend to get brittle and need to be re-wired or replaced after several years.

 

There is no flasher on a 2011. It's built into the light control module. The click you hear is a fake click coming from a speaker behind the instrument cluster.