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 MANUALSLINCOLN2006NAVIGATOR 4WD V8-5.4L VIN 5REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGKEY PROGRAMMINGUSING TWO PROGRAMMED KEYS
2006 Lincoln Navigator 4WD V8-5.4L VIN 5
Using Two Programmed Keys
2006 Lincoln Navigator 4WD V8-5.4L VIN 5SECTION Using Two Programmed Keys
KEY PROGRAMMING USING TWO PROGRAMMED KEYS
Special Tool(s)
NOTE:
- This procedure only works if 2 or more programmed ignition keys are available and it is desired to program additional key(s). If 2 keys are not available, follow the procedure in Key Programming Using Diagnostic Equipment.
- PID SPARE_KY must be enabled for this procedure to operate. If this Parameter Identification (PID) Index is not enabled, follow the security access procedure and select Spare Key Programming Switch: Enabled.
- If the programming procedure is successful, the new key(s) starts the vehicle and the THEFT INDICATOR illuminates for approximately 3 seconds and the exit ignition prove-out.
- If the programming procedure is not successful, the new key(s) does not start the vehicle and the THEFT INDICATOR flashes. If the programming procedure was not successful, repeat the key programming procedure from Step 1. If the failure repeats, check circuit 729 (RD/WH) (hot at all times) in instrument cluster for proper voltage. Repair the circuit if voltage is not present. For additional information, refer to Diagnosis and Testing to review diagnostic trouble codes (DTCs) and perform pinpoint tests as required.
- Unless in unlimited key mode, a maximum of 8 ignition keys can be programmed to a passive anti-theft system (PATS) equipped vehicle. Use PID NUMKEYS to determine how many keys are programmed to the vehicle.
- If the steps are not performed as outlined, the programming procedure will end.
- Ignition keys must have the correct mechanical key cut for the vehicle and must be a PATS encoded keys. (Keys are different from previous model years.)
1. Insert the first programmed ignition key into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 1 second).
2. Turn the ignition switch to OFF and remove the first key from the ignition lock cylinder.
3. Within 10 seconds of turning the ignition switch to OFF, insert the second programmed ignition key into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 1 second).
4. Turn the ignition switch to OFF and remove the second key from the ignition lock cylinder.
5. Within 20 seconds of turning the ignition lock cylinder to OFF, insert the unprogrammed ignition key (new key) into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 1 second).
6. If it is desired to program an additional key(s), repeat the key programming procedure from the beginning.
Worldwide Diagnostic System (WDS):
Special Tool(s)
NOTE:
- This procedure only works if 2 or more programmed ignition keys are available and it is desired to program additional key(s). If 2 keys are not available, follow the procedure in Key Programming Using Diagnostic Equipment.
- PID SPARE_KY must be enabled for this procedure to operate. If this Parameter Identification (PID) Index is not enabled, follow the security access procedure and select Spare Key Programming Switch: Enabled.
- If the programming procedure is successful, the new key(s) starts the vehicle and the THEFT INDICATOR illuminates for approximately 3 seconds and the exit ignition prove-out.
- If the programming procedure is not successful, the new key(s) does not start the vehicle and the THEFT INDICATOR flashes. If the programming procedure was not successful, repeat the key programming procedure from Step 1. If the failure repeats, check circuit 729 (RD/WH) (hot at all times) in instrument cluster for proper voltage. Repair the circuit if voltage is not present. For additional information, refer to Diagnosis and Testing to review diagnostic trouble codes (DTCs) and perform pinpoint tests as required.
- Unless in unlimited key mode, a maximum of 8 ignition keys can be programmed to a passive anti-theft system (PATS) equipped vehicle. Use PID NUMKEYS to determine how many keys are programmed to the vehicle.
- If the steps are not performed as outlined, the programming procedure will end.
- Ignition keys must have the correct mechanical key cut for the vehicle and must be a PATS encoded keys. (Keys are different from previous model years.)
1. Insert the first programmed ignition key into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 1 second).
2. Turn the ignition switch to OFF and remove the first key from the ignition lock cylinder.
3. Within 10 seconds of turning the ignition switch to OFF, insert the second programmed ignition key into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 1 second).
4. Turn the ignition switch to OFF and remove the second key from the ignition lock cylinder.
5. Within 20 seconds of turning the ignition lock cylinder to OFF, insert the unprogrammed ignition key (new key) into the ignition lock cylinder and turn the ignition switch from OFF to RUN (maintain the ignition switch in RUN for 1 second).
6. If it is desired to program an additional key(s), repeat the key programming procedure from the beginning.
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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.