Turbo Models

The TCM performs gear shifting control according to driving conditions by using the shift point characteristic data stored in its memory. Appropriate duty solenoids are operated at the proper timing corresponding to the shift pattern, throttle position, and vehicle speed for smooth shifting.

Fig 1: Identifying Shifting Control Graph (Turbo Models)

Courtesy of SUBARU OF AMERICA, INC.

• The TCM activates each duty solenoid in response to throttle opening and vehicle speed signals.
• According to the operation of the duty solenoids, the line pressure to each clutch and brake is supplied or interrupted.