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Home >> Ford >> 2005 >> Expedition 4WD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Anti-Theft - Pats >> General Procedures >> Key Programming Switch State Control >> Unlimited Key Mode Programming >> Disabling Unlimited Key Mode
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Disabling Unlimited Key Mode

  1. Using a diagnostic tool, select PCM from the menu. Follow SECURITY ACCESS to obtain security access. For additional information, refer to ANTI-THEFT SECURITY ACCESS .
  2. Select: DISABLE UNLIMITED KEY MODE.
  3. Select: IGNITION KEY CODE ERASE.
  4. Disconnect the diagnostic tool and turn the ignition key to OFF.
  5. Program in 2 keys to enable the vehicle by inserting the first encoded key into the ignition lock cylinder and turning the switch to the RUN position for 3 seconds, then back to OFF.
  6. Insert the second encoded key into the ignition lock cylinder and turn the switch to the RUN position, after 3 seconds the THEFT INDICATOR should extinguish.
  7. Program any additional keys using either Key Programming Using Two Programmed Keys or Key Programming Using Diagnostic Equipment.
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