In many cases, a auto will reset from limp mode when turned off, only to re-enter limp method once more once highway speeds are realized. Like the 3-passage technique, two with the passages are employed for the flow through the converter, and the 3rd passage serves to manage the clutch. https://torque-converter-clutch49360.kylieblog.com/34529914/the-torque-converter-clutch-diaries