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.
2008 Ford E 450 V10-6.8LFACTORY OEM SERVICE PROCEDURE
Switch State Control
KEY PROGRAMMING SWITCH STATE CONTROL
Special Tool(s)
NOTE:
- The spare key programming switch is a programmable switch which provides the capability to enable/disable the normal customer spare key programming procedure detailed in the Owner's Literature. It must read "Enabled" if more than 2 keys need to be programmed into the instrument cluster (IC). Refer to Key Programming Using Two Programmed Keys procedure. This programmable switch is provided as a convenience for rental company fleets or other fleet purchasers who may not want the spare key programming procedure available to the vehicle driver. Using Two Programmed Keys
- The spare key programming switch state can be viewed with the IC SPAREKEY PID.
- If the SPAREKEY PID reads "Enabled", up to 8 keys total can be programmed into the IC. Refer to Key Programming Using Two Programmed Keys procedure. If the SPAREKEY PID reads "Disabled", the Key Programming Using Two Programmed Keys procedure will not function. This PID is set to "Enabled" when the vehicle is built. This switch does not affect the Key Programming Using Diagnostic Equipment procedure, the Spare Key Programming - Unlimited Key Mode, or the Spare Key Programming - Using Diagnostic Equipment procedures. Using Two Programmed Keys
1. Insert a programmed PATS key into the ignition lock cylinder and turn the key from the OFF position to the ON position.
2. From the scan tool, enter TOOLBOX. Select BODY-SECURITY-PATS Functions and follow the on-screen instructions to ENTER SECURITY ACCESS. Refer to Anti-Theft Security Access. This procedure takes approximately 10 minutes to carry out, during which time the ignition switch must be in the ON position and the scan tool must be connected to the vehicle. Anti-Theft Security Access
3. NOTE:
- The default setting on delivery of all new vehicles is "Enabled".
- The spare key programming procedure is available in order to program more than 2 keys, but no more than 8 keys into the PATS using the Key Programming Using Two Programmed Keys procedure.
From the scan tool menu toggle: SPARE KEY PROGRAMMING SWITCH selection to the desired setting:
- "Enabled" - Spare Key Programming Procedure is accessible.
- "Disabled" - Spare Key Programming Procedure is not accessible.
4. Exit from the scan tool menu.
Special Tool(s)
Special Tool(s):
NOTE:
- The spare key programming switch is a programmable switch which provides the capability to enable/disable the normal customer spare key programming procedure detailed in the Owner's Literature. It must read "Enabled" if more than 2 keys need to be programmed into the instrument cluster (IC). Refer to Key Programming Using Two Programmed Keys procedure. This programmable switch is provided as a convenience for rental company fleets or other fleet purchasers who may not want the spare key programming procedure available to the vehicle driver. Using Two Programmed Keys
- The spare key programming switch state can be viewed with the IC SPAREKEY PID.
- If the SPAREKEY PID reads "Enabled", up to 8 keys total can be programmed into the IC. Refer to Key Programming Using Two Programmed Keys procedure. If the SPAREKEY PID reads "Disabled", the Key Programming Using Two Programmed Keys procedure will not function. This PID is set to "Enabled" when the vehicle is built. This switch does not affect the Key Programming Using Diagnostic Equipment procedure, the Spare Key Programming - Unlimited Key Mode, or the Spare Key Programming - Using Diagnostic Equipment procedures. Using Two Programmed Keys
1. Insert a programmed PATS key into the ignition lock cylinder and turn the key from the OFF position to the ON position.
2. From the scan tool, enter TOOLBOX. Select BODY-SECURITY-PATS Functions and follow the on-screen instructions to ENTER SECURITY ACCESS. Refer to Anti-Theft Security Access. This procedure takes approximately 10 minutes to carry out, during which time the ignition switch must be in the ON position and the scan tool must be connected to the vehicle. Anti-Theft Security Access
3. NOTE:
- The default setting on delivery of all new vehicles is "Enabled".
- The spare key programming procedure is available in order to program more than 2 keys, but no more than 8 keys into the PATS using the Key Programming Using Two Programmed Keys procedure.
From the scan tool menu toggle: SPARE KEY PROGRAMMING SWITCH selection to the desired setting:
- "Enabled" - Spare Key Programming Procedure is accessible.
- "Disabled" - Spare Key Programming Procedure is not accessible.
4. Exit from the scan tool menu.
Factory Service Tools
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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.
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