VARIABLE AIR DUCT (VAD) SOLENOID VALVE DESCRIPTION [L3]

id0113001500a2

Function

• Switches the intake manifold vacuum passage between the intake manifold and the actuator.

Structure

• Composed of a solenoid coil, spring, plunger, and filter.

Operation

Energlzed

• The plunger is pulled back to open the air passage between the A and B ports, which applies the atmosphere to the VAD shutter valve actuator.

De-energlzed

• The plunger is returned forward to open the air passage between the B and C ports, which applies the intake manifold vacuum VAD shutter valve actuator.