Shift Solenoid Operation Chart

Chart #701:

OPERATION
Two ON/OFF shift solenoids are used for electronic shift scheduling. One unit containing the two shift solenoids is located in the main control valve body. The shift solenoids are two-way, normally closed style. Shift solenoids (SS-1 and SS-2) provide gear selection of first through fourth gears by controlling the pressure to the three shift valves.

SHIFT SOLENOID FAILURE MODES








Shift Solenoid Failure "Always On"
Failed ON due to powertrain control module (PCM) and/or vehicle wiring concerns, shift solenoid electrically or hydraulically stuck ON.








Shift Solenoid Failure "Always Off"
Failed OFF due to powertrain control module and/or vehicle wiring concerns, shift solenoid electrically or hydraulically stuck OFF.