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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: Transmission Control Module, Engine Control Module & A/C Pressure Sensor Electrical Connectors
    GM1561318Courtesy 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 (RPO LS4) or Battery Negative Cable Disconnection and Connection (RPOs L26/L32) .
  6. Program the new ECM. Refer to Control Module References .
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