Alarm Module: Testing and Inspection

Theft Deterrent Module Programming and Setup

Special Tools

EL-49642 - SPS Programming Support Tool.

For equivalent regional tools, refer to Special Tools (SPS Programming Support Tool).

Note:
* DO NOT program a control module unless directed to by a service procedure or a service bulletin. If the ECU is not properly configured with the correct calibration software, the ECU will not control all of the vehicle features properly.
* Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or ECU damage may occur.
* Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. Install the EL-49642 - SPS Programming Support Tool to maintain system voltage. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger.
* Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights (including daytime running lights), HVAC, radio, etc.
* During the programming procedure, follow the SPS prompts for the correct ignition switch position.
* Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO.

Replace and Program Theft Deterrent Module

Note:
* This procedure requires two keys to complete the learn. These keys may be existing vehicle keys or new keys.
* The security indicator may illuminate to indicate the immobilizer system is in learn mode. The indicator should turn off when both keys have been learned.

To program a replacement theft deterrent module (TDM), perform the following procedure:

1. Connect a scan tool to the vehicle in the pass-thru arrangement.
2. Ensure that all power consuming devices are turned OFF on the vehicle.
3. On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions, using the Pass-Thru method. Ensure the correct programming selection is chosen based on component being replaced or programmed. For this procedure, go to the VTD Vehicle Theft Deterrent Learn (Relearn & Link) menu and choose the ECM to VTD Link Procedure selection.
4. At this point the scan tool must remain connected for the duration of the 10-minute relearn procedure.
5. Observe the scan tool. After approximately 10 minutes the scan tool will display "Programming Successful, Turn OFF Ignition".
6. Turn OFF the ignition and remove the key.
7. Within 10 seconds of turning OFF the ignition, turn ON the ignition with a second master key.
8. Perform the Replacing Keys (Replacing Keys) procedure.
9. With a scan tool, clear any DTCs.

Unsuccessful Programming Recovery

In the event of an interrupted or unsuccessful programming event, perform the following steps:

1. DO NOT turn the ignition OFF. Ensure that all ECU, DLC and programming tool connections are secure and the TIS terminal operating software is up to date.
2. Attempt to reprogram the ECU.
3. If the ECU can still not be programmed, turn the ignition OFF for at least one minute.
4. Turn the ignition ON and attempt to reprogram the ECU. The ECU should program.

• If the ECU still cannot be programmed, replace the ECU.