yeah, only ever read once of a harness abraded by the little u-joint (Cardan joint?) on the steering column.
plainOM is so helpful - I was gonna post wondering if a short in the body-to-hatch boot could pop that fuse - but with the list he posted, doesn't look like anyting supplied by f-12 goes to the hatch.
No reports of problems with the wires going to the hatch post-2009. I'm fairly certain that's because the flexible boots between the car body and the hatch are transverse, rather than in-line as on the 2005-9. Being transverse, the wires inside twist longitudinally as the hatch is opened and closed, rather than bending back and forth more-or-less at the same point. For decades, the side doors have had the wires set up to twist rather than bend. The doors, especially the driver's, are opened and closed far more often than the rear hatch yet I have yet to see a case of wires breaking in those door connections.
That fuse supplies power to the "light control sensor" (aka sun load sensor). It's located on the top of the dash, at the front right. It detects light (sun light) coming into the car, and is used to control the HVAC. I believe it's also used when the headlights are set for automatic operation.
Was the 2011 subject to the passenger side airbag recall? I'm wondering if perhaps the wire might have been damaged. Also, I'm not familiar with the sensor, but being on the top of the dash, I could imagine it being damaged, perhaps by liquid used to clean the dash, and perhaps is shorting intermittently. One of the four wires going to the sensor is a ground, so a short between the fused wire and the ground wire would blow the fuse. This could be internal in the sensor, or, in the connector to it.
But this is just speculation at this point . .