I Need Under Dash Fuse Diagram For 2012 Volkswagen Jetta I Need Under Dash Fuse Diagram For 2012 Volkswagen Jetta. Customer Question. I need under dash fuse.. I need under dash fuse diagram for 2012 Jetta 2.5 se. Submitted: 6 years ago. Category: VW. Show More. Show Less. Ask Your Own VW Question. This does not look like my fuse box. Mine is square with 2 rows of 15 amp and up to the left is the 2012 VW Jetta 2.0 TDI Main Fuse Box Diagram | Circuit 2012 VW Jetta 2.0 TDI Main Fuse Box Diagram. 2012 VW Jetta 2.0 TDI Main Fuse Box Map. Fuse Panel Layout Diagram Parts: air blower, on board supply control unit, heated passenger seat control, cigar lighter, headlight washer relay, socket, sunroof control unit, driver seat adjustment switch.