Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 568 (ANTI-THEFT SYSTEM - PATS)GENERAL PROCEDURESKEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT
2005 Ford Taurus SEL, 4D Sedan
Key Programming Using Diagnostic Equipment
2005 Ford Taurus SEL, 4D SedanSECTION Key Programming Using Diagnostic Equipment
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOL(S) TABLE
| Worldwide Diagnostic System (WDS) Vehicle Communication Module (VCM) with appropriate adapters, or equivalent diagnostic tool |
NOTE:
- This procedure is used when a customer needs keys programmed into the system and does not have 2 programmed ignition keys available. This procedure is also useful when programmed ignition key(s) are lost or a new ignition switch assembly is installed, and it is desired to erase key(s) from the passive anti-theft system (PATS) memory.
- This procedure erases all programmed ignition keys from the vehicle memory and the vehicle does not start until 2 keys are reprogrammed to the vehicle.
- Two PATS encoded keys with the correct mechanical cut must be available to carry out this procedure. One or both of them may be the customer's original keys.
- If additional keys are to be programmed, refer to KEY PROGRAMMING 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 Programming Spare Keys in the Owner's Literature for instructions on programming the remaining keys.
- Turn the ignition switch from OFF to ON.
- Using the diagnostic tool, enter the PCM, then select SECURITY ACCESS to obtain security access. For additional information, refer to ANTI-THEFT SECURITY ACCESS .
- Once in security access, from the diagnostic tool menu, select IGNITION KEY CODE ERASE.
- Turn the ignition switch to OFF and disconnect the diagnostic tool.
- Insert the first encoded key into the ignition lock cylinder and turn the ignition switch to ON for 3 seconds. Then turn the ignition switch to OFF and remove the key.
- Insert the second encoded key into the ignition lock cylinder and turn the switch to the ON position for 3 seconds.
- The vehicle should now start with both ignition keys.
NOTE:
Do NOT select any additional commands from this menu.
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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.