Idle Air Control/Auxiliary Air Control Valves

COMPONENT INSPECTION
IACV-AAC valve









1. Disconnect IACV-AAC valve harness connector.
2. Check resistance between the following terminals.

terminal (2) and terminals (1), (3)
terminal (5) and terminals (4), (6)

Resistance: Approximately 30 Ohms [at 20°C (68°F)]

3. Reconnect IACV-AAC valve harness connector.
4. Remove idle air adjusting unit assembly (IACV-AAC valve is built-in) from engine.
(The IACV-AAC valve harness connector should remain connected.)

5. Turn ignition switch "ON" and "OFF", and ensure the IACV-AAC valve shaft smoothly moves forward and backward, according to the ignition switch position.
If NG, replace the IACV-AAC valve.