Idle Air Control (IAC) Solenoid
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1995 Ford RV Cutaway, 1995 Ford Pickup, 1995 Ford F-Super Duty, 1995 Ford Econoline, and 1995 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Solenoid is by-pass air type. Ensure ignition is off. Disconnect IAC solenoid harness connector. Set DVOM to 200-ohm scale. Measure resistance between IAC solenoid connector terminals. Solenoid has diode. See Fig 1 . Connect DVOM (+) test lead to terminal VPWR and DVOM (-) lead to terminal IAC.
- Resistance should be 6-13 ohms. If resistance is not as specified, replace solenoid. Faults in IAC solenoid or circuit should set a diagnostic trouble code. See QUICK TEST in TESTS W/CODES - EEC-IV (7.5L) article. If no diagnostic trouble code has been set, see CIRCUIT TEST KE in the appropriate TESTS W/CODES - EEC-IV (7.5L) article for additional testing and specifications.