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

1. Using the T50/T60/T20+, enter the Service Programming System (SPS).
2. Select Terminal to Vehicle Programming.
3. Select Done and follow instructions on Vehicle Set-up screen
4. Select Vehicle Theft Re-learn.
5. Follow the instructions on the remaining screens.

•	The PCM and the Passlock control module will prepare for a re-learn.

•	A security timer will be ON for approximately 10 minutes or until DTC P1630 sets.

•	When the PCM and the Passlock control module are prepared to re-learn, turn the ignition OFF for 30 seconds and then start the engine.

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, refer to DTC P1630 Theft Deterrent Learn Mode Active .

1. Using a Tech 2 enter the Service Programming System (SPS).
2. After entering the vehicle information, choose the Request Info soft key on the Tech 2.
3. Select Done and follow the instructions on the Vehicle Set-up screen
4. Disconnect the Tech 2 from the vehicle and connect the Tech 2 to a Techline terminal.
5. At the Techline terminal, select Service Programming System (SPS), select the Terminal to Scan Tool Programming method and then select Done.
6. Follow the instructions on the remaining screens.
7. Select Vehicle Theft Re-learn.
8. Select Program at the summary screen. The terminal will download the information to the Tech 2.
9. Return the Tech 2 to the vehicle and connect the Tech 2 to the Diagnostic Link Connector (DLC).
10. Select Service Programming from the Tech 2 main menu. Answer the prompts regarding the model year and vehicle type. Press the Theft Re-learn soft key on the Tech 2.
11. Follow the instructions on the remaining screens.

•	The PCM and the Passlock control module will prepare for re-learn.

•	A security timer will be on for approximately 10 minutes or until DTC P1630 sets.

•	When the PCM and the Passlock control module are prepared to re-learn, turn the ignition OFF for 30 seconds and then start the engine.

Important: While the PCM 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, refer to DTC P1630 Theft Deterrent Learn Mode Active .

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.