I would assume the problem was there before
hence someone did the fast fix of hot wiring a bridge
Luckily there apparently was no additional problems as a result
When a good relay went in it found the same faults never addressed...
Don't know what the pop & burn did though
might have more problems
Had my own can't see nightmares
Was just going to spend some time changing the last of my fuses...
Maybe I did enough damage for this week
Good Luck
Hope someone can help