Shift Solenoid - SSA, SSB
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. 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.
| 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 |
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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.