Is the car leaking any oil? Do you hear a loud wrapping sound when you start the car (cam chain slack). Perhaps it could be the cam chain tensioner failing. However, when my cam chain tensioner failed it gave a tensioner specific code.
Since the bay has seen a lot of water as of late, maybe you've got a ground somewhere. I'm sort of clueless to the code.
I mostly replied to let you know that blauparts.com rents the TDC tool and also sells the TB/WP kit. I hear you can change the timing belt w/o putting the front end in service position but I don't have any experience. Something critical like a timing belt may be worth the extra steps and time to be sure it's done correctly.