Century V6-3100 3.1L VIN M SFI (1998)
Alarm Module: Service and Repair
Perform this procedure when the BCM has been replaced and the Setup New BCM procedure has been completed successfully.
There are three ways of performing the Theft Deterrent Re-Learn procedure, depending on the type of Techline equipment available:
1. Techline terminal and a Tech 2 scan tool (quickest).
2. T-50 or T-60.
3. Re-Learn without a scan tool or Techline equipment (slowest).
Theft Deterrent relearn Using a Tech line Terminal and a Tech 2 Scan Tool
1. Connect the Tech 2 to the Data Link Connector (DLC) on the vehicle.
2. At the Tech 2 scan tool main menu, select SERVICE PROGRAMMING.
3. Enter the requested vehicle information, then select REQUEST INFO.
4. Disconnect the Tech 2 scan tool from the vehicle.
5. Connect the Tech 2 scan tool to the Techline terminal.
6. Select SERVICE PROGRAMMING SYSTEM (SPS).
7. Select TERMINAL TO TECH 2 PROGRAMMING.
8. Select DONE and follow instructions on the Techline terminal to Handheld Communications Setup screen.
9. Select THEFT MODULE RE-LEARN.
10. At the summary screen, select PROGRAM. The terminal will then download information to the Tech 2 scan tool.
11. Disconnect the Tech 2 scan tool from the Techline terminal.
12. Connect the Tech 2 scan tool to the DLC on the vehicle.
13. At the Tech 2 scan tool main menu, select SERVICE PROGRAMMING.
14. Answer the question prompted by the Tech 2 scan tool, then select RE-LEARN.
15. The Powertrain Control Module (PCM) and the BCM will be prepared for re-learn.
16. A security timer will be on for approximately 10 minutes. During the 10 minute wait period, the Tech 2 scan tool must remain connected to
the vehicle.
17. When the PCM and BCM are prepared to re-learn, turn the ignition switch to the OFF position.
18. Turn the ignition switch to the START position.
19. The engine should now start when the ignition key is turned to the START position.
20. Disconnect the Tech 2 scan tool from the DLC.
Theft Deterrent Re-Learn Using a T-50 or T-60
1. Enter the T50 or T-60 Service Programming System (SPS).
2. Select TERMINAL TO VEHICLE PROGRAMMING.
3. Select DONE and follow the instructions on the VEHICLE SETUP screen.
4. Select THIEF MODULE RE-LEARN.
5. Follow the instructions on the remaining screens:
A. The PCM and BCM will be prepared for re-learn.
B. A security timer will be on for approximately 10 minutes. During the 10 minute wait period, the T-50 or T-60 terminal must remain
connected to the vehicle.
C. When the PCM and BCM are prepared to re-learn, turn the ignition switch to OFF, then to the START position. The engine should now
start.
Theft Deterrent Re-Learn Without Scan Tool or Techline Equipment
NOTE: This procedure takes approximately 30 minutes. Make sure the battery is fully charged before proceeding. Refer to the Battery for more
information. See: Starting and Charging/Battery
1. Turn the ignition switch to the LOCK position.
2. Turn the ignition switch to the RUN position.
3. The SECURITY will come on and stay on for at least 10 minutes.
4. Turn the ignition switch to the LOCK position for 5 seconds.
5. Repeat steps 2, 3, and 4 again for a second time.
6. Repeat steps 2, 3, and 4 again for a third time.
7. Turn the ignition switch to the LOCK position.
8. Turn the ignition switch all the way to the START position. The engine should now start.
9. Check for BCM Diagnostic Trouble Codes (DTCs).
