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Idle Air Control Solenoid (TAURUS 3.0L SHO)

  1. Faults in Idle Air Control (IAC) solenoid or circuit should set a service code. See QUICK TEST in TESTS W/CODES - EEC-IV article in the ENGINE PERFORMANCE section. If service code has not been set, ensure ignition is off.
  2. Disconnect IAC solenoid harness connector. Measure resistance between solenoid terminals. Resistance should be 50-100 ohms. Measure resistance between each IAC solenoid terminal and solenoid case. Resistance should be greater than 100 k/ohms. If resistance in either test is not as specified, replace solenoid.
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