Using Diagnostic Equipment

SPARE KEY PROGRAMMING - USING DIAGNOSTIC EQUIPMENT

Special Tool(s):

Special Tool(s)

NOTE:
- This procedure is used when a customer needs to have an additional key programmed into the vehicle without erasing stored key codes, but does not have 2 programmed keys available. This procedure is also useful when attempting to determine if an ignition key is damaged, as a new key can be installed without erasing keys or without having 2 programmed keys available.
- Before programming, the new key must have the correct mechanical cut for the ignition lock cylinder.
- If 8 keys are already programmed, this procedure does not allow any more ignition keys to be programmed. The number of keys that are programmed into the passive anti-theft system (PATS) can be determined by viewing the N_KEYCODE PID.

1. Turn the unprogrammed PATS key from the OFF position to the ON position.
2. From the scan tool, follow the on-screen instructions to ENTER SECURITY ACCESS.

3. NOTE: Make sure the selection made is "PROGRAM". If the "ERASE" selection is made, all of the keys will be erased from the system.

From the scan tool menu select: "Program additional ignition key" and press the tick mark.

4. Turn the key to the OFF position and disconnect the scan tool.
5. Start the vehicle with the new PATS key. The vehicle will now start with the new PATS key and also with the original PATS keys.