Reprogram ECU (UDC or UDD)
WARNING: This page is about a different car, the 2024 Chevrolet Silverado 3500 HD and 2024 Chevrolet Silverado 2500 HD. 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:
- Ignition ON/Vehicle in Service Mode.
- Access the Service Programming System (SPS) and follow the on-screen instructions.
- Ignition/Vehicle OFF.
- On the SPS Supported Controllers screen, select P16 Instrument Cluster - Programming and follow the on-screen instructions.
- Clear DTCs.
NOTE:
Ensure programming of this module is performed using the EL-52100 (MDI 2). Using the EL-47955 (MDI) will result in a programming failure.