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HOMESERVICE MANUALSFORD1999CROWN VICTORIA LX, 4.6 9REPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESCOMPUTER RELEARN PROCEDURESEXPLORER & MOUNTAINEERKEY PROGRAMMING
1999 Ford Crown Victoria LX, 4.6 9

Key Programming

1999 Ford Crown Victoria LX, 4.6 9SECTION Key Programming

Spare Key Programming Switch -Insert a programmed ignition key into the ignition lock cylinder. Insert Ford Service Function (FSF) card into NGS tester. Turn ignition switch from LOCK to RUN position. With NGS tester connected to vehicle, enter PATS then select SECURITY ACCESS PROCEDURE. This procedure will take 10 minutes to perform. After the security access procedure has been completed, a new menu will be displayed with command options. The default setting on all new vehicles is ENABLE. Select SPARE KEY PROGRAMMING SWITCH. Set SPARE KEY PROGRAMMING SWITCH to ENABLE to allow keys to be programmed or DISABLE to make key programming not accessible.

NOTE: This procedure will only work if 2 or more programmed ignition keys are available and there is a need to program additional keys. If 2 keys are not available, perform KEY PROGRAMMING - ERASE ALL KEYS & PROGRAM 2 KEYS. PID SPARE_KY must be enabled for this procedure to operate. To enable this PID, perform KEY PROGRAMMING - SPARE KEY PROGRAMMING SWITCH and enable spare key programming switch. If programming procedure is successful, new key(s) will start vehicle and THEFT indicator will illuminate for 3 seconds. If programming procedure is not successful, new key(s) will not start vehicle and THEFT indicator will flash for one minute (after flashing for one minute, THEFT indicator will flash fault code). If necessary, repeat programming procedure. If programming of key(s) is still unsuccessful, perform self-diagnostics. See SELF-DIAGNOSTIC SYSTEM in PASSIVE ANTI-THEFT SYSTEMS - EXPLORER & MOUNTAINEER article in ACCESSORIES & EQUIPMENT. Maximum of 8 keys can be programmed into system. If procedure is not performed as outlined, programming procedure will end. Ignition keys must have correct mechanical key cut for vehicle and must be an encoded key.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.