RAM 1500 Truck 4WD V8-5.9L VIN Z LDC (1999)
Cruise Control Vacuum Solenoid: Description and Operation
SPEED CONTROL SOLENOIDS-PCM OUTPUT
Speed control operation is regulated by the powertrain control module (PCM). The PCM controls the vacuum to the throttle actuator through the
speed control vacuum and vent solenoids. Refer to Speed Control Information.
