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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transaxle/Transmission - AISIN Aw21) >> Description And Operation >> Transaxle Electronic Control System >> Transaxle Shift Solenoids SSA, SSB

Transaxle Shift Solenoids SSA, SSB

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Fig 1: Identifying Transaxle Shift Solenoids (SSA, SSB)
GF0017740Courtesy of FORD MOTOR CO.
Item Part Number Description
1 - Shift Solenoid A (SSA)
2 - Shift Solenoid B (SSB)

The transaxle SSA is installed on the middle valve body. The transaxle solenoid assembly SSB is installed on the front valve body. The solenoids turn ON and OFF in response to signals output from the TCM. According to the ON or OFF status of SSA or SSB, the 1st gear engine brake operates or the gear shifts into REVERSE. As a fail-safe function, if any transaxle solenoid assembly abnormality occurs, the TCM will disable the current to the solenoids.