Abstract: An electronic transmission controller for determining the shift points of a powered vehicle with a plurality of forward and reverse gears and a neutral gear shift position wherein a throttle setting signal, a vehicle speed signal and a gear range select signal are monitored and processed to produce optimum shift points, gear change commands, forward-reverse shift commands and a throttle inhibit signal to facilitate downshifting of the transmission. With the exception of the throttle transducer, the monitoring and processing means are primarily digital.