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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.3 T, 4L60E/M30REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1021 (PROGRAMMING AND SETUP - ALL SYSTEMS)REPAIR INSTRUCTIONSENGINE CONTROL MODULE PROGRAMMING AND SETUPECM REPLACEMENT
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30

ECM Replacement

2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30SECTION ECM Replacement
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

If the engine control module (ECM) is replaced, the following procedures must be performed:

  1. The ECM Reprogramming-Refer to Service Programming System (SPS) .
  2. The CKP Variation Learn-Refer to Crankshaft Position System Variation Learn .
  3. The Fuel Composition Diagnosis-Refer to Fuel Composition Diagnosis .
  4. The Theft Deterrent Programming-Refer to Theft Deterrent Control Module Programming and Setup .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.