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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Programming And Setup - All Systems) >> Repair Instructions >> K71 Transmission Control Module: Programming and Setup (8L45/90) >> Replace and Program Control Module
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Replace and Program Control Module

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

To program a replacement K71 Transmission Control Module (TCM), perform the following procedure:

  1. Replace the K71 Transmission Control Module..
  2. Install EL-49642   SPS programming support tool
  3. Access the Service Programming System (SPS) and follow the on-screen instructions.
  4. Perform the K20 Engine Control Module and K71 Transmission Control Module Sequential Programming and follow the on-screen instructions.
  5. Perform the Refresh Characterization Data at the MCVM Characterization procedure, follow the on-screen instructions.
  6. Perform the Transmission Service Fast Learn Procedure .
  7. With a scan tool, clear DTCs from the K71 Transmission Control Module.
  8. Ignition OFF for 2 minutes.
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