Idle Air Control (IAC) Valve

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Turn ignition off. Disconnect IAC 3-pin connector. Check resistance between terminals. See IDLE AIR CONTROL (IAC) VALVE RESISTANCES table. If resistances are not as specified, replace valve.

IDLE AIR CONTROL (IAC) VALVE RESISTANCES

Measure Between Terminals No. (Wire Colors)

⁽¹⁾ Resistance - Ohms

Optima & Magentis (Canadian)

1 & 2 (ORG/BLK & PNK)

15-16

2 & 3 (PNK & BLU)

17-18

Rio

1 & 2 (WHT & RED/YEL)

16.5-18.5

2 & 3 (RED/YEL & WHT/RED)

14.5-16.5

Sephia

1 & 2 (WHT/YEL & RED/YEL)

14-18

2 & 3 (RED/YEL & WHT/GRN)

14-18

Sportage

1 & 2 (BLU/RED & BLK/WHT)

14-18

2 & 3 (BLK/WHT & RED/GRN)

14-18

⁽¹⁾	At 68° F (20° C).