LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1290 (Automatic Transmission - 4R70E/W, 4R75E/W) >> Description And Operation >> Transmission Electronic Control System >> Shift Solenoid - SSA, SSB

Shift Solenoid - SSA, SSB

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Two on/off shift solenoids provide gear selection of 1st through 4th gears by controlling the pressure to the 3 shift valves. One unit containing the 2 shift solenoids is located in the main control valve body. The shift solenoids are 2-way, normally open style.

SOLENOID OPERATION CHART

Selector Lever Position PCM Commanded Gear Solenoids
SSA SSB TCC
P/R/N 1 ON OFF HD
Overdrive (Circle D) 1 ON OFF HD
Overdrive (Circle D) 2 OFF OFF EC
Overdrive (Circle D) 3 OFF ON EC
Overdrive (Circle D) 4 ON ON EC
w/OD OFF 
1 1 ON OFF HD
2 2 OFF OFF EC
3 3 OFF ON EC
Manual 2 2 OFF OFF EC
Manual 1 1 ON OFF HD
1a 2 OFF OFF EC
EC = Electronically Controlled
HD = Hydraulically Disabled

a When a manual pull-in occurs above a calibrated speed, the transmission will not downshift from the higher gear until the vehicle speed drops below this calibrated speed.