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Home >> Pontiac >> 2005 >> Grand Prix GXP >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.3L - Introduction >> Repair Instructions >> Engine Control Module (ECM) 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: 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 Brace Replacement - Front Fender Upper Diagonal .
  5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs L26/L32) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) .
  6. Program the new ECM. Refer to Engine Control Module Programming and Setup .
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