Unsuccessful Programming Recovery
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
If programming a control module is not successful, perform the following procedure:
- Verify the control module, data link connector and programming tool connections are secure and the tool software is up to date.
- Ignition - On/Vehicle - In Service Mode
- Perform one of the following SPS Programming functions:NOTE:
If both controller options below are listed, select K20/K71 Engine and Transmission Control Modules.
- K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions.
- K71 Transmission Control Module and follow on-screen instructions.
- Verify the control module programming is successful.
- If the programming is not successful - Replace the component: K71 Transmission Control Module
- Go to next step: If the programming is successful
- Select - MCVM Operations - If applicable
- Ignition/Vehicle - Off - For greater than 2 min
- Select - Setup - Follow the on-screen instructions.
If setup is not an available option - Perform the appropriate learn/reset procedure with the scan tool
- Go to next step: If the programming is successful
- Select - MCVM Operations - If applicable
- Ignition/Vehicle - Off - For greater than 2 min
- Select - Setup - Follow the on-screen instructions.
If setup is not an available option - Perform the appropriate learn/reset procedure with the scan tool
- Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
- All OK.