Without Tech 2 Scan Tool or Techline Terminal

IMPORTANT: Refer to DTC P1631 Theft Deterrent Password Incorrect if the Passlock Learn Procedure cannot be completed successfully. Testing and Inspection

IMPORTANT: While the VCM is in the Auto Learn Procedure, maintain the battery voltage at all times. Follow the procedure exactly as indicated or the procedure will have to be repeated from the beginning.

IMPORTANT: Performing the following procedures will cause a DTC P1630 to set when they are completed. This is the intended functionality. Once it is set, turn the ignition OFF for 30 seconds, then turn the ignition ON and P1630 will clear. If P1630 does not clear, go to DTC P1630 Theft Deterrent VCM in Learn Mode. Testing and Inspection

PROCEDURE
1. Attempt to start the vehicle (the vehicle will start and stall), after the engine has stalled, leave the ignition ON for 10 minutes (the security light will remain ON for 10 minutes and then go OFF).
2. After the Security lamp turns OFF, turn the ignition OFF for 30 seconds.
3. Again, attempt to start the vehicle (the vehicle will start and stall), after the engine has stalled, leave the ignition ON for 10 minutes (the security light will remain ON for 10 minutes and then go OFF).
4. After the Security lamp turns OFF, turn the ignition OFF for 30 seconds.
5. Again, attempt to start the vehicle (the vehicle will start and stall), after the engine has stalled, leave the ignition ON for 10 minutes (the security light will remain ON for 10 minutes and then go OFF) or until DTC P1630 sets.
6. Turn the ignition OFF for 30 seconds.
7. Turn the ignition ON and wait 30 seconds.
8. Attempt to start the engine.