Nothing else showing up in the Auto-Scan besides the 00604 ?
I'm guessing this is on the 2002 TT in your signature since there is no scan to review.
I would check the wiring diagram to see what other items share the same tracks as the G113.
If there is nothing else and the harness isn't faulty, then replace G113.
Otherwise find and correct the short in the harness or replace other faulty components.
2012 A8L 4.2 Oolong/Titanium. Premium, LED, Driver assist, Rear seat comfort, Dual pane, Alcantara, Panorama