F 150 2WD Pickup V8-4.6L CNG SOHC VIN 9 (1997)
Shift Interlock Solenoid: Description and Operation
The brake shift interlock actuator prevents moving the shift lever out of the PARK position unless the brake pedal is depressed. The actuator receives a
signal from the brake on/off (BOO) switch that allows movement of the shift lever.