2000 Silverado Z71 4x4 5.3L 460k+ miles w/ GM rebuilt motor and trans
What is this? It's been hanging out since I bought the truck and I still have no idea what it is for...
There are the standard 7 wires for the trailer receptacle and then the random 8th wire with the weird end on it. I have no idea what it's for and it has never been in service in the 10 years I have owned the truck...do I count 8 wires back there? and is it grey? Well I dunno? I cant find anything about a grey wire and that plug is weird. of course I have only worked on gmt400's and that wire is not on my trucks.