From a very dull memory, Of the two switches I thought one had it`s internal contacts Normally Closed (NC) and the contacts other switch mounted alongside were Normally Open (NO) although both switches are externally identical...?
Happy to be corrected if that is wrong info..
That is correct.
Craig is also correct. The NC switch is for the brake light. The NO (Normally open) is an ECU input. I carried spares of both for my 2014 4/4.