Thanks to my GS-911 I found out that my front ESA had an open circuit.
I was able to trace it to one of the white wires that leads to the shock.
Now that I've fixed the broken wire, the fault code is gone. I don't know how to tell if the damping adjustment is working, though.
When cycling through the modes (comfort, normal, sport) I can hear the rear shock make a whirring noise. The front shock, on the other hand, doesn't make any noise at all.
Does this mean it's broken? Should there be a noise? What's the best way to test it?
Thanks.