Component Inspection

1. INSPECT IAC VALVE RESISTANCE

NOTE: "Cold" end "Hot" in the following sentences express the temperature of the coils themselves. "Cold" is from -10 °C (14 °F) to 50 °C (122 °F) and "Hot" is from 50 °C (122 °F) to 100 °C (212 °F).




Using an ohmmeter, measure the resistance between terminal +B and other terminals (RSC, RSO).

Resistance:
Cold: 17.0 - 24.5 ohms
Hot: 21.5 - 28.5 ohms

If resistance is not as specified, replace the IAC valve

2. INSPECT IAC VALVE OPERATION




a. Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSC, and check that the valve is closed.




b. Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSO, and check that the valve is open.