Replace and Program ECU or Reprogram ECU
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When programming the B218L Side Object Sensor Module - Left, it is also necessary to program the B218R Side Object Sensor Module - Right to ensure software compatibility between the two modules.
To program a replacement or an existing ECU, perform the following procedure:
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select B218L Side Object Sensor Module - Left.
- On the SPS Select Function / Sequence screen, select Programming
- On the SPS Supported Controllers screen, select B218R Side Object Sensor Module - Right.
- On the SPS Select Function / Sequence screen, select Programming
- At the end of programming, choose the "Clear DTCs" function on the SPS screen.