Forum Discussion

Gaetan's avatar
Gaetan
Explorer
Aug 06, 2013

7 pin plug

I have a 2004 chevy 2500 hd duramax allison
The 7 pin plug does not transfer 12volt to the trailer plug (both the rear or the in box plugs are the same) is their a fusible that has to be added some were I have not found any thing in the truck manual maybe you have the answer?
Gaetan

22 Replies