Voith Economy or Power switch

[BaconFarms]

I though I had found the switch to turn of the "retarder", but I did not.

I did find a Economy or Power switch. It is and was on Power.

I am unable to find anything in my Operators, Service, Part or Schematics manuals as to what this does.

I would take it for a spin and see what the differences would be, but been pulling wires, and well we know how that goes, now I have a dead module I need to find the disconnected wire connection. LOL.

Any ideas,

BaconFarms

Still hunting for the retarder switch.

[Sehnsucht]

Voith makes stuff like turbos so could be an on/off switch for such a system. Semi trucks with automatic transmissions often have economy vs performance settings which change the shift habits and fuel management for periodic power boosting to climb or pass. This looks more aftermarket though so could be any number of performance enhancing technologies.