Vitara JLS (2Dr) 2WD L4-2.0L (2001)
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Idle Speed/Throttle Actuator - Electronic: Description and Operation
Idle Air Control Valve
The IAC valve controls opening of the bypass air passage (i.e. bypass air flow). The IAC valve consists of a stepping motor, rod valve and other parts.
As stepping motor is controlled by signal from ECM (PCM), valve position changes to increase and reduce bypass air flow.
