Why is the keyless entry keypad light flashing on my Ford?

The keypad will go into an anti-scan mode if you enter the wrong code seven times (35 consecutive button presses). This mode disables the keypad for one minute, and the keypad lamp will flash.

The anti-scan feature will turn off after:

• One minute of keypad inactivity.
• Unlocking your vehicle using the key.
• Switching the ignition on.

Additional Information

How do I find the keyless entry code for my vehicle?
How do I program keyless entry code code?
How do I use the keyless entry code?