The reference cited is from the wrong airframe.
The correct manual for Belgian F-16s will be either a GS (general system; theory of operations) or JG (job guide; step-by-step procedural instructions) technical order of the form T.O. 1F-16AM-2-x where x = [system][GS or JG]-[subsystem]-[manual].
If memory serves correct, F-16 WOW switch override is strictly an external affair and cannot be performed from the cockpit.