supersteve,
i had same thing happened lol

funny things is, stealer said i need like 3 different ecu's with wirings etc. as a start, they didn't know if it's a $5k or $10k repair
i said hmmm you must be smoking crack, and i took my car home

once home, and knew where to look, i opened ecu box, yes there was a little water, BUT only on 2 of the connector, that's it, they didn't even boter to check all connectors, they just saw water to first connector and ooh ok got to replace ALL the wiring all the boxes, not even a little other attempt.

so i bought five dollar can of electronics cleaner, vaccuumed, in 5 mins i was done, cleared code with my tool, and guess what...FIXED. no more trans fail safe, no more code, no more nothing.

safe to say i'm never ever taking any of my cars to that dealer again, even if i have to drive extra 30 miles