Interior Fuse Box Location: 2012-2015 Scion iQ - 2012 Click to view0:17Some Scions have multiple interior fuse boxes including in the trunk - the video above will show you where the interior fuse box of your 2012 iQ is located. If your iQ has many options like a sunroof, navigation, heated seats, etc, the more fuses it has. Toyota Scion iQ - 2012 Fuse Box Diagram diagramfusebox›ToyotaScion iQ - 2012 Fuse Box; 175. 3-5. Other interior features. 3. Interior features. The fuses are located in the following places. To check the Have the cause of electrical overload determined and repaired by your Scion. dealer as soon as possible. 259. 4-3. Do-it-yourself maintenance. 4.