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Home >> Chevrolet >> 2012 >> Chevy Express H1500, Van Cargo >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 4.8L, 5.3L, 6.0L - Repair Instructions >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of ECM Bracket Tabs, ECM & Bracket
    GM1932024Courtesy of GENERAL MOTORS COMPANY
  1. Install the ECM (4) to the bracket (2).
  2. Ensure that the ECM bracket tabs (3) fully engage the ECM.
    3. Fig 2: View Of Engine Wiring Harness Electrical Connectors
    GM1932023Courtesy of GENERAL MOTORS COMPANY
  3. Connect the engine wiring harness electrical connectors (2) to the ECM (1).
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  5. If a new ECM was installed, program the ECM. Refer to Control Module References .
  6. Using a scan tool, set the remaining engine oil life.
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