This is a new one for me. I thought that I was missing tail lights and turn signals due to bad grounds at the tail lamp sockets in my 89 CSX. That seems like it was the case. However, now that I've installed new sockets and ancillary grounds I find that the car still won't blink when the signal is pressed. I have checked that all bulbs are good as I know an out bulb will stop them from blinking. The lights do seem to light up, but they won't blink. The front marker lamp and actual turn signal don't blink together either. It's weird.

I checked to ensure that I didn't cross any wires when installing the new sockets and it looks like I did that correctly. Could this be the actual switch in the column?