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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo Extended, 6.6 2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L (LLY) - Introduction (2 Of 2) >> Repair Instructions >> Engine Control Module Replacement >> Removal Procedure

Removal Procedure

  1. Using a scan tool, capture the ECM data.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  3. Remove the washer solvent container. Refer to Washer Solvent Container Replacement .
    4. Fig 1: Identifying ECM Electrical Connector
    GM1655955Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the ECM electrical connectors.
    5. Fig 2: Identifying ECM Upper Retaining Tabs
    GM1655954Courtesy of GENERAL MOTORS CORP.
  5. Release the ECM upper retaining tabs.
  6. Remove the ECM from the bracket.
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