Celica Liftback L4-107.5 1762cc 1.8L DOHC (7A-FE) (1995)
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A/C Idle Up Valve: Description and Operation
PURPOSE
The A/C Idle-Up Valve is a vacuum switching valve which is used to maintain idle quality during A/C operation.
OPERATION
A/C Idle-Up Vacuum Switching Valve
The solenoid is located in-line with a throttle valve bypass hose. When energized by the engine control module (ECM), air is allowed past the
throttle valve, raising the idle speed.
