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Home >> GMC >> 2021 >> Sierra 3500 HD SLT, 6.6L Eng VIN 7, RWD >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> K56 Serial Data Gateway Module: Programming and Setup >> Repair Instructions

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References  for Control Module replacement, programming and setup