I often recommend that you remove the torque converter through the transmission to diagnose it effectively. Hydraulic Circuit: The technique of channels and passages that immediate transmission fluid to have interaction the TCC, allowing for with the seamless changeover among locked and unlocked states. Antique illustration of adaptor transmission gearbox. https://elliotthpuwy.jiliblog.com/90967299/torque-converter-clutch-fundamentals-explained