The TCC map (attached here) looks mostly the same between Base mode and Tow-mode, but I know in Tow-mode you get engine braking in all gears and in Base mode you don't. Is there something else I should be looking at for the TCC? The whole section is pretty daunting, so I'm not sure where to look.
TCC_tables.jpg
Possibly in addition to the TCC workings, I think something else controlled in the transmission (like coast clutch or something) is what I'm looking for, but I couldn't see anything like that.