F 550 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
Shift Solenoid: Description and Operation
Allison Automatic Transmission Downshift Solenoid (F650/750)
The PCM controls a relay which provides the kickdown necessary for Wide Open Throttle (WOT) downshifts. The relay is powered through a circuit
from KEY__PWR and switches VBATT through FUSE PDB #10 (MINI 15A) to the (+) positive side of the transmission mounted solenoid.
