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Home >> Buick >> 2009 >> Allure Super >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 5.3L - Introduction >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of ECM
    GM1554547Courtesy of GENERAL MOTORS CORP.
  1. Install the ECM to the air cleaner lower housing.
    2. Fig 2: Identifying ECM Electrical Connectors
    GM1618724Courtesy of GENERAL MOTORS CORP.
  2. Connect the ECM electrical connectors (2).
  3. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  4. Install the left front inner fender brace. Refer to FRONT FENDER UPPER DIAGONAL BRACE REPLACEMENT .
  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LS4) .
  6. Program the new ECM. Refer to Control Module References .
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