James,
forget the flash-to-pass... do you stil have current drain now that you've found that exposed wire? If you have a current drain, the car won't start, and you won't be overtaking anything so the flash-to-pass is useless anyway. So use the original test to see if you now have NO current draining over fuse 1.
Do remember that some electrical tape will not last forever, especially if it gets warm. A better solution is new wire, but if that's hard, use some crimp insulation...
Peter