Ford Mustang (1999-2004) Service Manual: Key Programming - Erase All Key Codes and Program Two Keys

Special Tool(s)

Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052 or equivalent diagnostic tool

NOTE: This procedure is used when a customer needs keys programmed into the system and does not have two programmed ignition keys available. This procedure is also useful when programmed ignition key(s) have been lost or the ignition switch assembly has been replaced, and it is desired to erase key(s) from the passive anti-theft system (PATS) memory.

NOTE: This procedure will erase all programmed ignition keys from the vehicle memory and the vehicle will not start until two keys have been reprogrammed to the vehicle.

NOTE: Two PATS encoded keys with the correct mechanical cut must be available to perform this procedure. One or both of them may be the customer's original keys.

NOTE: If additional keys are to be programmed, refer to Key Programming - Program a Key Using Two Programmed Keys. If the remaining keys are with the customer and are not available with the vehicle, then instruct the customer to refer to the Owners Guide under the "Programming Spare [SecuriLock (North America), Safeguard (U.K.) or PATS for all other markets] Keys Procedure" for instructions on programming the remaining keys.

1. Turn the ignition switch from OFF to RUN.

2. Enter diagnostic tool. Follow the SECURITY ACCESS PROCEDURE to obtain security access.

3. From diagnostic tool menu, select IGNITION KEY CODE ERASE.

4. NOTE: Do NOT select any additional commands from this menu.

Turn the ignition switch to OFF and disconnect diagnostic tool.

5. Insert the first encoded key into the ignition lock cylinder and turn the switch to RUN for three seconds.

6. Insert the second encoded key into the ignition lock cylinder and turn the switch to RUN for three seconds.

7. The vehicle should now start with both ignition keys.

    Anti-Theft - Passive Anti-Theft System (PATS) (Diagnosis and Testing)
    Refer to Wiring Diagrams Cell 112 , Anti-Theft for schematic and connector information. Refer to Wiring Diagrams Cell 60 , Instrument Cluster for schematic and connector information. Special Tool(s ...

    Key Programming - Program a Key Using Two Programmed Keys
    Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent diagnostic tool NOTE: This procedure only works if two or ...

    Other materials:

    Gear (Disassembly and Assembly)
    Special Tool(s) Head Mounting Fixture 303-D041 (D83L-500-B1) or Equivalent Inner Tie Rod Socket Tool 211-D025 (D90P-3290-A) or Equivalent Steering Gear Holding Fixture 211-D011 (D87P-3504-B) or Equivalent Material ...

    Intake Manifold Runner Control (IMRC) Actuator - 3.8L
    Removal and Installation 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Drain the cooling system. For additional information, refer to Section. 3. Remove the upper intake manifold. For additional informat ...

    Transmission fluid check
    Checking Automatic Transmission Fluid Note: Transmission fluid should be checked and, if required, added by an authorized dealer. The automatic transmission does not have a transmission fluid dipstick. See your Scheduled Maintenance Information for scheduled ...