The PCM/TCM will not established a DTC Until there is a challenge While using the electrical circuit managing the torque converter clutch solenoid. F (free-circulation level): at this stage there's no load over the turbine, the speed ratio is incredibly near to 1, which implies that the turbine pace matches https://torque-converter-clutch53074.suomiblog.com/examine-this-report-on-torque-converter-clutch-49367971