Off-Vehicle

IAC VALVE INSPECTION
1. INSPECT VALVE RESISTANCE.



- Using an ohmmeter, measure the resistance between the terminals (B1 -S1 and S3, B2-S2 and S4).

Resistance at 20°C (68°F) : 34 - 54 0hms

- If resistance is not as specified, replace the IAC valve.

2. INSPECT IAC VALVE OPERATION.



- Apply battery voltage to terminal B1 and B2, and while repeatedly grounding S1-S2-S3-S4-S1 in sequence. check that the valve moves toward the closed position.




- Apply battery voltage to terminal B1 and B2, and while repeatedly grounding S4-S3-S2-S1-S4 in sequence, check that the valve moves toward the open position. ]

- If operation is not as specified, replace the IAC valve assembly.