Is the connection for ground?

[Icke]

Hello, I don't remember what the connection was for, is it for connecting a ground cable?

 

[Nacho-RT74]

No… to attach the extra bracket and screw for the AC Control unit

 

[Icke]

No… to attach the extra bracket and screw for the AC Control unit

Ok, thanks for your help!

 

[Nacho-RT74]

Standard cluster gets a wired ground straight to the PCB via the round multipin connector

 

[Icke]

Standard cluster gets a wired ground straight to the PCB via the round multipin connector

Thank you for your explanations.

I have another problem, I have almost no idea about the electrics, can you tell me what the individual names on the light switch are for, B1, B2, I, etc.? I have a guess, but before I connect something wrong, I'd rather ask.