Idle Speed/Throttle Actuator - Electronic: Description and Operation
IAC valve with integral Limp- Home function (LH 2.4)
The Limp-Home function, which comes into operation when a fault occurs in the IAC system, such as a loose connection, causes the valve to give a fast idling speed of 1200 rpm.
The earlier three-pin connector has been replaced by a two- pin connector because the connector on the AC valve is of two-pin type.