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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2638 (Anti-Theft - Passive Anti-Theft System (Pats) -- F250-F550 Super Duty) >> General Procedures >> Key Programming - Unlimited Key Mode >> Disabling Unlimited Key Mode

Disabling Unlimited Key Mode

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. From the scan tool, enter TOOLBOX. Select BODY - SECURITY - PATS Functions and follow the IDS  on-screen instructions to ENTER SECURITY ACCESS.
  2. Select "unlimited key mode OFF" and follow the IDS  on-screen instructions.
  3. Select "Ignition Key Code Erase" and follow the IDS  on-screen instructions.
  4. Turn the key to the OFF position and disconnect the scan tool (the key does not need to be removed from the ignition at this time).
  5. Turn the first PATS  key to the RUN position for a minimum of 6 seconds.
  6. Turn the first PATS  key to the OFF position and remove the key from the ignition.
  7. Insert the second PATS  key into the ignition and turn the key to the RUN position for a minimum of 6 seconds.
  8. The engine should now start with both PATS  keys.
  9. If it is desired to program additional key(s) (only a total of 8 keys can be programmed into the BCM  ), refer to KEY PROGRAMMING - PROGRAM A KEY USING TWO PROGRAMMED KEYS .
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