Grand Marquis V8-4.6L Flex Fuel (2010)
1. From the scan tool, enter TOOLBOX. Select BODY - SECURITY - PATS Functions and follow the IDS on-screen instructions to ENTER
SECURITY ACCESS. For additional information, refer to Anti-Theft Security Access See: Accessories and Optional Equipment/Antitheft and
Alarm Systems/Testing and Inspection/Component Tests and General Diagnostics.
2. Select "unlimited key mode OFF" and follow the IDS on-screen instructions.
3. Select "Ignition Key Code Erase" and follow the IDS on-screen instructions.
4. Disconnect the scan tool and turn the ignition key to the OFF position (the key does not need to be removed at this time).
5. Turn the first PATS key in the ignition lock cylinder to the ON position for 3 seconds.
6. Turn the first PATS key to the OFF position and remove the key from the ignition lock cylinder.
7. Insert the second PATS key into the ignition lock cylinder and turn the key to the ON position for 3 seconds. Both keys are now programmed and
can start the vehicle.
8. NOTE: With the unlimited key mode turned off, a maximum of 8 keys can be programmed into the PCM using the Key Programming Using Two
Programmed Keys See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Testing and Inspection/Programming and
Relearning/Key Programming Using Two Programmed Keys procedure. The PCM PID SPAREKEY must be set to ENABLE.
If it is desired to program an additional key(s), refer to Key Programming Using Two Programmed Keys See: Accessories and Optional
Equipment/Antitheft and Alarm Systems/Testing and Inspection/Programming and Relearning/Key Programming Using Two Programmed Keys
for each additional key that needs to be programmed. The PCM PID SPAREKEY must be set to ENABLE.
