#Turn the ignition switch to the OFF position.
#Disengage the wiring harness connector from the IAC valve .
#Using an ohmmeter, measure the resistance between the terminals of the valve.
#Due to the diode in the solenoid, place the ohmmeter positive lead on the VPWR
terminal and the negative lead on the ISC terminal.
#If the resistance is not 7-13 ohms, replace the IAC valve.