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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> K56 Serial Data Gateway Module: Programming and Setup >> Reprogram Control Module
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Reprogram Control Module

To program an existing K56 Serial Data Gateway Module, perform the following procedure:

    NOTE:

    Verify all modules are connected and communicating before attempting to program the K56 Serial Data Gateway Module.

  1. Ignition/Vehicle OFF.
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.
  3. On the SPS Supported Controllers screen, select K56 Serial Data Gateway Module - Programming and follow the on-screen instructions.
  4. Clear DTCs.