Ignition "OFF" & Engine "OFF"
Disconnect IAC valve connector
Measure resistance between terminals 1 and 2 of the valve connector(C15)(To IAC valve)
Specification : 16.6~18.6Ω
Is resistance near the specified value?
YES
Go to "W/Harness Inspection" procedure.
NO
Test with a new IAC valve and check for proper operation. If problem is corrected, replace IAC valve. Go to "Verification of Vehicle Repair" procedure