[Prefferle]

Originally Posted by HPsauce

I don't know how a D3 works, but the operation of the switch you describe is EXACTLY how it works on a D2, with a very slight gap between the two circuits.

IIRC, in a D2, one is for the brake lights, the other for the ECU.

I suspect the only real difference between the two switches is that yours is the later design with the automatic setting procedure which you have followed.
The D2 version is adjustable on a screw thread, no automatic/ratchet setting to worry about.

Hi HP,

Thanks for those details. The new switch is working as per your description, so must be ok, the controller is detecting an intermittent Issue so possibly wiring or connection issue, it looks to be a bigger challenge to find this problem. I’ll look for wiring and module locations - possibly trace the circuit signals to the controller.

Thanks again, you saved me from buying another switch 👍