V70 XC AWD L5-2.4L Turbo VIN 56 B5254T (1998)
Idle Speed/Throttle Actuator - Electronic: Description and Operation
Idle Air Control Valve - Diagram
IDLE AIR CONTROL VALVE - DIAGRAM
The Idle Air Control (IAC) Valve has a linear function.
The valve consists of the following components:
^ Inlet (1)
^ Outlet (2)
^ Rotor (3)
^ Permanent Magnet (4)
^ Valve (5)
The idle air control (IAC) valve rotor (3) is equipped with an opening and a closing coil, and with a permanent magnet (4). The engine control module
(ECM) delivers pulsed ground signals to both coils. Depending on the character of the control signals, the rotor operates a rotating valve head (5), which
regulates the flow of air through the outlet (2).