Programming and Relearning

Immobilizer System Component Programming

This procedure will learn the immobilizer function and require greater than 15 minutes to complete. If the battery voltage is low, charge the battery before proceeding with the learn. If the body control module (BCM) or engine control module (ECM) have been replaced, they must be programmed before performing this learn procedure.

Depending on the immobilizer function being learned or the component replaced, different learn functions are required to be performed. These learn functions are as follows:





1. Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) Service Programming System (SPS).

2. Turn ON the ignition, with the engine OFF.

3. Ensure that all power consuming devices are turned OFF on the vehicle.

4. Select SPS application and follow the on-screen instructions.

5. Select Reprogram ECU.

6. Select IMMO Immobilizer Learn - Setup.

7. Select the appropriate programming function based on the component that was replaced or is being programmed. Refer to the table at the top of this document for assistance in choosing the correct programming function.

8. Follow the on-screen instructions.

9. After programming all keys "Programming Complete" is displayed.

10. Press the lock and unlock button on each transmitter that was programmed. This will awaken each transmitter and allow passive and active keyless entry functions to be established.

11. With a scan tool, clear any DTCs.

12. Verify each key is operating properly. Operate each of the keyless entry functions using the buttons on the transmitter and then start the vehicle. When verifying operation, make sure that no other keys are near the vehicle.