Operation CHARM: Car repair manuals for everyone.

Shift Solenoid: Description and Operation



Shift Solenoids A, B, C, and D






Four On/Off shift solenoids allow the powertrain control module to control shift scheduling.

- The solenoids are two-way, normally open style.
- The shift solenoids (SSA, SSB, SSC, and SSD) provide gear selection by controlling the pressures of the shift valves.
- SSD is also used to apply and release the coast clutch.