Unsuccessful Programming Recovery

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.
- K20 Engine Control Module and follow on-screen instructions.
Verify the control module programming is successful.
- If the programming is not successful
1. Ignition/Vehicle - Off - For greater than 1 min
2. Ignition - On / Vehicle - In Service Mode
3. 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.
  - K20 Engine Control Module and follow on-screen instructions.
  - If the programming is not successful Replace the appropriate component: K20 Engine Control Module or K71 Transmission Control Module
  - Go to next step: If the programming is successful
4. All OK.
- Go to next step: If the programming is successful
All OK.