Replace and Program ECU or Reprogram ECU

WARNING: This page is about a different car, the 2015 GMC Terrain and 2015 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

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

Install EL-49642 SPS Programming Support Tool.
Access the Service Programming System (SPS) and follow the on-screen instructions.
On the SPS Supported Controllers screen, select RDCM Rear Differential Clutch Control Module - Programming and follow the on-screen instructions.
On the SPS Supported Controllers screen, select RDCM Rear Differential Clutch Control Module - Setup and follow the on-screen instructions.
At the end of programming, choose the"Clear All DTCs" function on the SPS screen.
Perform the Rear Differential Clutch Classification Calibration procedure. Refer to Rear Differential Clutch Control Module Calibration