The onboard Computer system screens parameters like highway pace, throttle placement and engine load to find out optimum change points. The manual valve is just what the change lever hooks around. Based on which gear is selected, the manual valve feeds hydraulic circuits that inhibit selected gears. As an illustration, https://gearboxauto06160.qowap.com/93311143/5-tips-about-gearbox-auto-you-can-use-today