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Home >> GMC >> 2014 >> Sierra 2500 HD SLT, 6.6L Eng VIN 8, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2503 (Programming And Setup - All Systems) >> Repair Instructions >> Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup (2ML70) >> Replace and Program ECU or Reprogram ECU

Replace and Program ECU or Reprogram ECU

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 GMC Sierra 3500 HD, 2013 GMC Sierra 2500 HD, 2013 GMC Sierra 1500, 2013 Chevrolet Silverado 3500 HD, and 2013 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

To program a replacement or an existing ECU, 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. On the SPS Supported Controllers screen, select TCM - Programming and follow the on-screen instructions.
  4. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.
  5. Perform the Reset Transmission Adapts following all transmission related repairs.
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