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Relays & Solenoids: Solenoids: Notes

WARNING: This page is about a different car, the 1995 Ford Explorer and 1995 Ford Aerostar. However, it is still accessible from the selected car via links, so may be relevant.

Secondary Air Injection By-pass/Diverter (AIRB/AIRD) Solenoids -Disconnect solenoid harness connector, and measure resistance across terminals. Resistance should be 50-100 ohms. If resistance is not as specified, replace solenoid. Faults in solenoid or circuit should set a diagnostic trouble code. See QUICK TEST in TESTS W/CODES - EEC-IV (4.0L) article. If no diagnostic trouble code has been set, see CIRCUIT TEST KC in the appropriate TESTS W/CODES - EEC-IV (4.0L) article for additional solenoid and circuit testing.