lites, fuse, .. action!

[kps36]

last night, noticed that both fogs (550s) didn't work. I had them wired to the parking lites for over a year and no problem.
I also have 500 driving lites, i noticed last night also that the fuse(on the relay 15a) for them was blown..hmm
I have now blown 3 consecutive fuses on the driving lite relay as soon as i switch to hi beams.
I have the fogs wired to the fog/R headlamp fuse and the 500s to the hi-beam fuse...works great ,lites on, fogs too, switch to hi, fogs go off, driving lites come on.

Q: will a bad relay cause this fuse blowing madness ?
Q: i can bypass the relay (like i have on the other truck) and what would you guys think ?
The reason i dont really like #2 is that it seems if Q1 is true then 'something' took out both realys at the same time..and i dont really feel like risking an electrical 'blow-up' of something else ??
These lights do not share any EOM splices except where I fed the switches to the inside cabin fuse box.
suggestion, answers, help ????

 

[Bill Kemp]

I suppose that a bad relay could blow fuses but usually they just stop working.
Try unpluging each light seperatly and see if you can find which one is blowing the fuse. Sounds like one or both of the power wires is shorting out .
Just trial & error to find the problem.