I have my Cylinder 3 Glow Plug Circuit/Open (Fault Code P0673) on my 2014 EcoDiesel Jeep Grand Cherokee Overland. I am looking to inspect/replace on my own but do not know where to find glow plug 3. Does anybody have a diagram or worked through this issue yet? Haynes manual doesn't cover the Diesel option and can't find this information anywhere. Any information is appreciated!