Using Diagnostic Equipment

KEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT

Special Tool(s):

Special Tool(s)

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 a programmed ignition key(s) is lost or the ignition lock cylinder is replaced, and it is desired to erase key code(s) from the passive anti-theft system (PATS) memory.
- This procedure erases all programmed ignition keys from the vehicle memory. The vehicle will not start until a minimum of 2 keys are programmed to the vehicle.
- A minimum of 2 PATS keys must be programmed into the PCM before the vehicle will start.
- Two PATS encoded (contains a transponder) 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, and the remaining keys are with the customer, or are not available, instruct the customer to refer to the Owner's Literature for instructions on programming the remaining keys. In this case, the PID SPAREKEY must be enabled.
- This procedure is not necessary if only the PATS transceiver was replaced. Replacement of the transceiver does not erase the PATS key codes in the PCM.

1. From the scan tool, follow the on-screen instructions to ENTER SECURITY ACCESS.
2. From the scan tool menu select: "Ignition Key Code Erase" and press the tick mark.
3. Turn the key to the OFF position and disconnect the scan tool.
4. Insert the first PATS key into the ignition lock cylinder and turn the key to the ON position for 3 seconds.
5. Remove the first PATS key from the ignition lock cylinder.
6. Insert the next PATS key into the ignition lock cylinder and turn the key to the ON position for 3 seconds.
7. If it is desired to program additional key(s) (only up to 8 keys total can be programmed into the PCM), refer to Key Programming Using Two Programmed Keys. Using Two Programmed Keys