I'm having an issue with the power locks on my 01 blazer. They were working fine few weeks ago, but the rear wiper motor was not working. So i swapped in one from a junkyard. I plugged it in and it was bad and now it seemed to short something out with the locks I bought a new wiper motor assembly, which is working now. The fuses in the dash compartment are fine. The 3amp Power lock fuse under the hood was popped. I put a new one in and it pops instantly. I'm not too good with electrical. Where should i start tracking down this issue?

Thanks for any advice.

 

I hit garage again and found the root cause. When I installed the new wiper assembly i pinched a rear hatch popper wire under the wiper assembly. It was a black wire. It's dark in there. It's a black truck. Ehhhhh Ok. Stupid me.