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Reprogram Control Module

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.

To reprogram an existing ECM, perform the following procedure:

  1. Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) .
  2. Perform the SPS function Engine Control Module - Programming and follow the on-screen instructions.
  3. Clear DTCs after completing the Programming procedure.
  4. Perform the SPS Function Immobilizer Learn and follow the on-screen instructions. Refer to Immobilizer System Component Programming .
  5. Perform the SPS function Engine Control Module - Configuration & Setup and follow the on-screen instructions, if available.
  6. Clear DTCs after completing the Configuration & Setup procedure.
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