Diagnostic Aids

Replace and Program ECU or Reprogram ECU 

To program a replacement or an existing ECU, perform the following procedure:

1. Install the EL-49642  SPS programming support tool.
2. Access the Service Programming System (SPS) and follow the on-screen instructions.
3. On the SPS Supported Controllers screen, select Battery Energy Control Module - Programming and follow the on-screen instructions.
4. At the end of programming, choose the"Clear All DTCs" function on the SPS screen.

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.