Idle Air Control Valve - Fast Idle Control Device (IACV-FICD)

DESCRIPTION
The idle air adjusting (IAA) unit is made up of the IACV-AAC valve, IACV-FICD solenoid valves and idle adjusting screw. It receives the signal from the ECM and controls the idle speed at the preset value.







DIAGNOSTIC PROCEDURE




WIRING DIAGRAM

COMPONENT INSPECTION
IACV-FICD solenoid valve-1




Disconnect IACV-FICD solenoid valve-1 harness connector.
- Check for clicking sound when applying 12 V direct current to terminals.




- Check plunger for seizing or sticking.
- Check for broken spring.