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Reprogram Control Module

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

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. Clear DTCs after completing the Programming procedure.
  4. Perform the SPS function Engine Control Module - Configuration & Setup and follow the on-screen instructions, if available.
    NOTE: If vehicle fails to start during Configuration and Setup, perform the SPS Function Immobilizer Learn and follow the on-screen instructions.
  5. Clear DTCs after completing the Configuration & Setup procedure.
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