Hey everyone, the CEL on my dash came on a few days back, and gave me the codes P0758 and P0700. P0758 is the Solenoid B Electrical code and P0700 is TCM malfunction.

Symptoms:
When the light came on the car initially did not display any weird behavior, until I stopped at a red light, then it seemed to get to around 2.5k RPMS before it got going (no first gear). There is no Overdrive whatsoever.
The next morning I turned the car on and the CEL was still on, I had first gear and overdrive again. Seems like turning it off and then on again resolved the symptoms. That afternoon I checked the fluid level and its fine, The fluid is bright red and doesn't smell burnt. I've done some research and came across some advice saying it could be corroded connectors by the firewall near the distributor and oil filter. , I cleaned them (they looked fine beforehand). I wiped the codes with my scanner. ~80 miles later with no issues, my CEL is back on with the same codes and the same symptoms.

Just wondering if anyone here has dealt with these specific issues and perhaps has some info or ideas they'd like to share to help me get this sorted out. Thanks, I appreciate your time.