Technician A says electronic transmissions control shifts by directing the shift solenoid output pressure to the bands and clutches. Technician B says electronic transmissions control shifts by directing the shift solenoid output pressure to the shift valves. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because electronic transmissions control shifts primarily by directing the shift solenoid output pressure to the shift valves, which in turn control the hydraulic circuits that engage the appropriate bands and clutches for gear selection. Technician A's statement is not entirely accurate as the solenoids directly control the shift valves rather than the bands and clutches.

Technician a Says Electronic Transmissions Control Shifts by Directing the Shift