Enabling Unlimited Key Mode
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Unlimited key mode is intended for use by those customers who need more than 8 keys for their vehicle.
- The customer must choose a 4-digit, non-0000 number to be programmed to all of their vehicles. All customer vehicles need to use the same number. Valid digits are 0-9 plus the letters A-F.
- Check the PID: UNLIMITED TRANSPONDER KEY ID and compare its value against the code chosen in Step 1.
- Using the diagnostic tool, select PCM from the menu. Follow SECURITY ACCESS to obtain security access. For additional information, refer to ANTI-THEFT SECURITY ACCESS .
- Turn off unlimited key mode to view the security key PID.
- If the Unlimited Transponder Security Key PID is 0000, select Active Command: SET UNLIMITED TRANSPONDER KEY. Enter the 4-digit code chosen by the user.
- Select: ENABLE UNLIMITED KEY MODE.
- Select: IGNITION CODE ERASE.
- Disconnect the diagnostic tool and turn the ignition keys off.
- Program in 2 ignition keys to enable the vehicle by cycling the keys from OFF to RUN.
- Program any additional keys using either KEY PROGRAMMING USING TWO PROGRAMMED KEYS or KEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT .
NOTE:
If the PCM PID: UNLIMITED TRANSPONDER KEY ID is not available, unlimited key mode is turned on, and must be turned off before viewing the stored code. To view/change the stored code, follow the procedure for turning off unlimited key mode below.