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Encrypted Code Registration

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2003 Jeep Wrangler, 2003 Jeep Liberty, 2003 Jeep Grand Cherokee, 2003 Dodge Viper, and 2003 Dodge Stratus. However, it is still accessible from the selected car via links, so may be relevant.
  1. Obtain vehicle secret code from customer or manufacturer. Connect scan tool to Data Link Connector (DLC) located under left side of instrument panel. Insert valid ignition key and turn the ignition switch to ON position. Under MAIN MENU select SYSTEM SELECT and press YES. Select IMMOBILIZER and press YES.
  2. Select SPECIAL FUNC and press YES. Select PASSWORD SET and press YES. Enter vehicle secret code and 4-digit password into new immobilizer ECU. If an incorrect code is entered 5 times in a row, immobilizer ECU will detect tampering and enter start-prevention mode. Engine operation and special functions will be disabled.
  3. To clear start-prevention mode, turn the ignition switch to ON position and leave in ON position for 20 minutes. Connect a battery charger if necessary. Start-prevention mode will cancel after 20 minutes. After completing encrypted code registration procedure, all ignition keys will need to be input. See KEY ID REGISTRATION .
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