In need of some help. I also around 8 months ago had a connector that was burned on Pin 1 (Thick Orange) and Pin 3 (Black-ground I believe).
I replaced the blower motor resister and bought a new connector PT1134 and soldered it to harness. Everything worked great until yesterday.
I pulled the connector and it has burned at pin 3 (Black-Ground) and I am puzzled

on what can be causing this failure
If anyone can help I would greatly appreciated. Thanks