Similar setup as the Camry. Mine didn't come out. Ever. The control arm was bent by a flatbed driver. In the end I ended up replacing the hub and both control arms as a set from a junkyard donor. 20 minutes to disconnect as a unit. If you do go the donor route be aware of ABS sensors and brake setup.

 

The thought had occurred to me to grab the entire subassembly. Might be necessary if there's no other way to get this thing!

 

Tried an impact wrench ? Harbor Freight.

 

use a BFH to hammer along the part that the bolt goes into (perpendicular to the axis of the threads)

 

I use one of these with 1000-lbs*ft nut-busting torque: http://www.ingersoll-rand-airtools.com/ir2135ti.html

Regular air pressure is 90-psi. If a bolt gives me trouble, I turn up pressure to 120psi. I had troublesome rusted-on nut that wasn't budging. Turned up pressure to 120si and it just snapped head clean off 12mm bolt! Problem solved, just had to wait couple days while dealer ordered new bolt.

Proper power tools makes repair operations much, much faster and easier. I can pull engine in less than 1-hr now compared to 3-4 hrs before using hand tools.

 

Thanks for the replies guys.

Today I pulled the sub-assembly. There were some bits and bobs attached to the brake that I couldn't remove without maybe breaking them, but there is a cut-out around the bolt that I hadn't seen before. I have that soaking in a pool of PB Blaster and hopefully over the next couple of days that will seep around the bolt (and it won't rain). My 19mm extraction socket gets here on the 10th. I will try that next. If that's a no-go I guess I will have to buy/borrow an impact wrench.

Follow up question: Where can I order a new replacement bolt? I can't find this thing online anywhere.

Edit: I found it today in like the first two minutes of searching. Seems to be part 48703e here:

https://parts.lakelandtoyota.com/showAssembly.aspx?ukey_assembly=499643&ukey_product=4219851

 

https://parts.olathetoyota.com/ is a good place for the obscure Toyota parts.