Fault codes from Electronic Climate Control Unit
 

The Electronic Climate Control unit on my 850 is acting strangely, with the air directional control intermittently changing where the air goes irrespective of the setting on the central control knob.

I've checked the fault codes and from what I can see online, the codes relate to a possible issue with the the common ground, that of course is if the fault codes relate to the issue I am having!! If not there are more issues to be resolved!

Anyway, one thing at a time.

Before I start to look aimlessly behind the console can anyone advise where the common ground is so I can check it out?