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 instrument cluster 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 - TOWN CAR 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.