Alarm Module: Testing and Inspection

Theft Deterrent Module Programming and Setup

Because of how vehicle key information and theft deterrent passwords are stored within the theft deterrent module (TDM), the Set Up a New Theft Deterrent Module (TDM) Using Existing Keys procedure must be performed prior to the removal and replacement of the TDM if the vehicle keys are being reused. If the scan tool is unable to communicate with the TDM or is otherwise unable to extract this information from the TDM, the vehicle keys must be replaced.

Theft Deterrent Module Replacement Using Existing Keys

Note:
* Use this procedure only if replacing the theft deterrent module (TDM) using the existing vehicle keys. Make sure to have all keys available during this procedure.
* DO NOT REPLACE THE TDM MODULE As The SPS Screen States. The SPS screen that states Replace Controller is incorrect. This SPS procedure is used to unlock the existing TDM module so that key information can be extracted with the scan tool before replacement.
* This procedure must be performed prior to the removal and replacement of the TDM if the vehicle keys are being reused. Performing the setup procedure first allows the scan tool to extract the key information and passwords from the old TDM prior to its removal. Failure to perform this step will result in the failure to learn the existing vehicle keys and new vehicle keys will be required when replacing the TDM.
* Do not use the scan tool for any other programming operations while performing this procedure. Doing so will erase the stored data retrieved from the original TDM and cause the set-up to fail.

1. Connect a scan tool to the vehicle in the pass-thru arrangement.
2. Turn ON the ignition, with the engine OFF.
3. Ensure that all power consuming devices are turned OFF on the vehicle.
4. On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Legacy Pass-Thru method. Ensure the correct programming selection is chosen based on component being replaced or programmed. For this procedure, go to the V.T.D. Vehicle Theft Deterrent Learn menu and choose the Prepare Module For TDM Setup Procedure selection.

Note: DO NOT REPLACE THE TDM MODULE As The SPS Screen States. The SPS screen that states Replace Controller is incorrect. This SPS procedure is used to unlock the existing TDM module so that key information can be extracted with the scan tool before replacement. At no time during the SPS procedure should you replace the module.

5. At this point the scan tool must remain connected for the duration of the 10-minute relearn procedure.

Note:
* The SPS will initially display 12 Minutes. The first 2 minutes allow the scan tool to initialize the appropriate control module. The remaining 10 minutes is the relearn timer.
* On some vehicles the security indicator may be illuminated for the duration of the 10 minute relearn procedure.

6. Observe the SPS screen, after approximately 12 minutes, the SPS screen will display Programming Complete.
7. With the scan tool, select Theft Deterrent Module in the Vehicle Control Systems Module Setup data list.
8. Select Step 1.
9. Select Use Existing Keys.
10. The scan tool will then display Replace Module Per Service Manual. At this time, replace the TDM.
11. After the new TDM has been installed, using the scan tool, select Step 2.
12. Navigate to key data on scan tool to show how many keys are learned - should be zero at this point.
13. Remove key from ignition, re-insert key, turn key to run (observe on scan tool that keys learned is 1). Make sure to have all keys available during the learn procedure.
14. Repeat step 13 for all other keys (must be completed within 10 seconds after turning ignition off for each key). Now existing keys will be learned (observed on scan tool the number of keys learned increments for each key). If addition keys are not learned (10 second timer between cycling ignition off/on expired), then use the add key procedure.
15. If the first key is not able to be learned, then re-install old module. If the old module was removed before getting key information and password using the scan tool, the first key will not be learned. Re-install the old module for data extraction and do not replace module while performing the SPS procedure. The SPS screen that states Replace Controller is incorrect.

Theft Deterrent Module Replacement Using New Keys

Note: Use this procedure only if replacing the TDM using new vehicle keys.

The TDM must be replaced prior to beginning this procedure.

1. Connect a scan tool to the vehicle.
2. With a new, unlearned, vehicle key, turn ON the ignition, with the engine OFF.
3. With a scan tool, select Theft Deterrent Module in the Vehicle Control Systems Module Setup data list.
4. Select Step 1.
5. Select Use New Keys.
6. Perform 10 minute learn for the ECM to learn the new fuel continue password.

With SPS Tool (10 Minute Learn)

This 10-minute relearn procedure will relearn the fuel continue password between the theft deterrent module (TDM) and the engine control module (ECM).

1. Navigate to key data on scan tool to show how many keys are learned - should be zero at this point
2. Remove key from ignition, re-insert key, turn key to run (observe on scan tool that keys learned is 1). Make sure to have all keys available during the learn procedure.
3. Repeat step 2 for all other keys (must be completed within 10 seconds after turning ignition off for each key). Now existing keys will be learned (observed on scan tool the number of keys learned increments for each key). If additional keys are not learned (10 second timer between cycling ignition off/on expired), then use the add key procedure.
4. Connect a scan tool to the vehicle in the pass-thru arrangement.
5. Turn ON the ignition, with the engine OFF.
6. Ensure that all power consuming devices are turned OFF on the vehicle.
7. On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Legacy Pass-Thru method. Ensure the correct programming selection is chosen based on component being replaced or programmed. For this procedure, go to the V.T.D. Vehicle Theft Deterrent Learn menu and choose the Vehicle Theft Deterrent Learn for Powertrain System selection. Ensure the correct Vehicle Theft Deterrent Learn for Powertrain System selection is chosen based on the engine RPO of the vehicle being programmed.
8. At this point the Techline Terminal must remain connected for the duration of the 10-minute relearn procedure.

Note:
* The Techline Terminal will initially display 12 Minutes. The first 2 minutes allow the Techline Terminal to initialize the appropriate control module. The remaining 10 minutes is the relearn timer.
* On some vehicles the security indicator may be illuminated for the duration of the 10-minute relearn procedure.

9. Observe the Techline Terminal, after approximately 12 minutes the Techline Terminal will display Programming Successful, Turn OFF Ignition and wait 2 minutes. The vehicle is now ready to relearn the key information and/or the passwords on the next ignition switch transition from OFF to CRANK.
10. With a master vehicle key, turn the ignition to the RUN position for 15 seconds, then start the vehicle. The TDM and ECM have now relearned the fuel continue password.
11. With a scan tool, clear any DTCs.