A little behind on the forums here, but how ironic is this topic? Just last night at work, I had an electrical issue w/ my semi (no left turn signals on tailer). Long story short, it was due to wire connectors INSIDE of the truck (2015 Freightliner) with the pins inside of the connector all green w/ corrosion!!! Mechanic said it was due to water/moisture inside of cab due to the vents on back wall as I asked hoe the H does water get inside of the connectors while it's on the back wall? Suffice to say, they didn't have a new harness, so had to switch out w/ a bute--ugh!
