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Valve Body Solenoids

The valve body assembly contains 6 solenoid valves. See Fig 1 . 3 Pulse Width Modulation (PWM) valves, 2 shift solenoid valves (on/off) and one main regulating valve (variable force solenoid). PWM solenoid valves (SSC, SSD and SSE) regulate pressure to brakes and clutches. Shift solenoid valves (SSA and SSB) switch different passages in valve body to direct pressure to individual brakes and clutches. Pressure Control Solenoid (PCA) ensures that sufficient hydraulic pressure is available in all operating conditions. See VALVE BODY SOLENOID OPERATION  table.

Fig 1: Identifying Valve Body Solenoids
G00026715Courtesy of FORD MOTOR CO.
VALVE BODY SOLENOID OPERATION

Gearshift Lever Position (1) SSA SSB SSC SSD SSE
"P" Or "N" On Off Off Off Off
"R" Off Off Off Off Off
"D" (2)
"1" Off Off Off On On
"1" (Manual) On On Off Off On
"2" Off Off Off Off On
"3" Off Off Off Off Off
"4" On Off On Off Off
"D" (3)
"3" Off Off On Off Off
"4" On On On Off On
(1) With gearshift lever in "D" position, gears "1", "2", "3" and "4" are PCM commanded gears.
(2) With gearshift lever in "D" position and OD button in OFF position.
(3) With gearshift lever in "D" position and OD button in ON position.