Reprogram Control Module

To reprogram an existing K20 Engine Control Module, perform the following procedure:

1. Install EL-49642  SPS programming support tool.
2. Access the Service Programming System (SPS) and follow the on-screen instructions.
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.
4. Clear DTCs after completing the Programming procedure.
NOTE:

If vehicle fails to start during Configuration and Setup, perform the SPS Function Immobilizer Learn and follow the on-screen instructions.

5. Perform the following SPS function:
   1. Setup
      NOTE:

      If both controller options below are listed, select K20 Engine Control Module.

      • K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions.
      • K20 Engine Control Module and follow on-screen instructions.
   2. Configuration - If applicable
6. If equipped, perform the Fuel Pressure Regulator Learn via GDS2, Engine Control Module, Configuration/Reset Functions, Learn Functions.
7. Clear DTCs.