Idle Up Control Valve: Description and Operation

A/C Idle-Up Valve:

PURPOSE
The A/C idle-up VSV opens a throttle valve bypass line to maintain idle quality during A/C operation.

LOCATION
The VSV is mounted to the firewall in the engine compartment.

OPERATION
The solenoid is located in-line with a throttle valve bypass hose. When energized by the ECM, air is allowed past the throttle valve, raising the idle speed.