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Solenoid Operation

SOLENOID OPERATION

Transmission Range Selector Lever Position PCM Gear Commanded 4F50N Solenoids
Eng Brake SSA SSB SSC
P/N (1) P/N
 
NO OFF (2) ON (2) OFF (1)
R R YES OFF ON OFF
(D) (OVERDRIVE) 1 NO OFF ON OFF
2 NO OFF OFF OFF
3 NO ON OFF ON
4 YES ON ON ON
D (DRIVE) 1 NO OFF ON OFF
2 NO OFF OFF OFF
3 YES ON OFF OFF
MANUAL 1 1 (3) YES OFF ON OFF
2 (3) YES OFF OFF OFF
3 (3) YES ON OFF OFF
(1) When transmission fluid temperature is below 10°C (50°F) then SSA=OFF, SSB=ON, SSC=ON to prevent cold creep in NEUTRAL only
(2) Not contributing to power flow.
(3) When a manual pull-in occurs above calibrated speed, the transaxle will downshift from the higher gear until the vehicle speed drops below this calibrated speed.