IACV-FICD Solenoid Valves

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.


Electrical Diagram





Circuit Connectors





DIAGNOSTIC PROCEDURE

1 Of 2:

2 Of 2:

COMPONENT INSPECTION
IACV-FICD solenoid valve-1







Disconnect IACV-FICD solenoid valve-1 harness connector.
- Check for clicking sound when applying 12V direct current to terminals.
- Check plunger for seizing or sticking.
- Check for broken spring.


IACV-FICD solenoid valve-2







Disconnect IACV-FICD solenoid valve-2 harness connector.
- Check for clicking sound when applying 12V direct current to terminals.
- Check plunger for seizing or sticking.
- Check for broken spring.