The PCM is "smarter" than that ... a constant lack of voltage on this circuit (similar to when the brakes are applied) will set DTC P0719 (Brake Switch Circuit Low Input) ... while constant voltage on this circuit (similar to when the brakes are not applied) will set DTC P0724 (Brake Switch Circuit High Input).
As you stated, it might be a reasonable course of action to leave these wires in the wiring harness (just tucked away where you can get at them if need be), until you complete the first one of these off-road vehicles. After that, you will know definitively what you need / don't need on future wiring harnesses for this customer.
Just some thoughts ....
Bookmarks