TCC solenoid inductive signature, etc.

I forgot the code for the ISIG but I also get the notorious P1741 and P0741 codes for my tranny. I can see that when the indicator is flashing and the "Check Transmission" is displayed on the status panel that the torque coverter is obviously not in lockup mode as evidenced by the tach movement when letting up on the gas, stc. I can almost swear that I have never observed lockup since we've owned the van but it was only recently after towing our camper that the codes and indicator showed up. I'm hoping we havent burnt out the TC clutch or some other part. There was no overheat indication and the weather was cool during the tow, which I would hope could help things. Nevertheless, on the way home, on the freeway, the alarm popped up. I read the codes when I got home and it makes me think, (hope) that all I may need is the solenoid but still I wonder what the 80 mile trip home with the camper in tow might have done. I also read about a concern in the Alldata about the tranny regarding filling the tranny right to the top of the hash marks instead of just anywhere within them. It is below the top and I'm hopng this may also have had some effect here.
Anyway, I'm wondering if anyone here has had much experience with this issue and what I may be facing beyond just the solenoid. I sure hope the TC clutch isn't "burned out".

Thanks