KE4 - Measure IAC Solenoid Resistance

Idle Air Control (IAC) Solenoid Connector:

- Key "OFF".

- Idle Air Control (IAC) solenoid disconnected.

- Measure solenoid resistance.

NOTE: Due to diode in solenoid, place Digital Volt/Ohm Meter (DVOM) (+) lead on VPWR pin and (-) lead on IAC pin.

- Is resistance between 6.0 and 13.0 ohms?

Yes -- Go to KE5. KE5 - Check For Internal Short to IAC Solenoid Case

No -- Replace IAC solenoid. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)