Idle Air Control (IAC) Solenoid

1997 Ford Contour LX, 2.5 L, StandardSECTION Idle Air Control (IAC) Solenoid
  1. Solenoid is by-pass air type. Ensure ignition is off. Disconnect IAC solenoid harness connector. Measure resistance between IAC solenoid connector terminals. Solenoid has diode. See Figure . Connect DVOM (+) test lead to terminal VPWR (Red wire) and DVOM (-) lead to the other IAC solenoid terminal.
  2. Resistance should be 6-13 ohms. If resistance is not 6-13 ohms, replace solenoid. If resistance is 6-13 ohms, IAC solenoid is okay. See CIRCUIT TEST KE in TESTS W/CODES - 2.5L article for additional testing and specifications.
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