Unsuccessful Programming Recovery

If programming a control module is not successful, perform the following procedure:

1. Verify the control module, data link connector and programming tool connections are secure and the tool software is up to date.
2. Ignition - On / Vehicle - In Service Mode
3. Access the Service Programming System and follow the on-screen instructions for the control module: K20 Engine Control Module
NOTE:

If both controller options below are listed, select K20 Engine and K71 Transmission Control Modules.

4. Perform the SPS function:
   • K20 Engine Control Module - Follow the on-screen instructions.
   • K71 Transmission Control Module - Follow the on-screen instructions.
5. Perform the scan tool function: Clear DTCs
6. Ignition/Vehicle - Off - For greater than 1 min
7. Ignition - On / Vehicle - In Service Mode
8. 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
   NOTE:

   If both controller options below are listed, select K20 Engine and K71 Transmission Control Modules.

   3. Perform the SPS function:
      • K20 Engine Control Module - Follow the on-screen instructions.
      • K71 Transmission Control Module - Follow the 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 
9. All OK.