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Home >> Chevrolet >> 2012 >> Caprice 3.6 3 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 3.6L - Repair Instructions >> Repair Instructions >> Engine Control Module Replacement >> Removal Procedure
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Removal Procedure

  1. Ignition OFF.
    2. WARNING:

    Refer to Battery Disconnect Warning .

  2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) , Battery Negative Cable Disconnection and Connection (Auxiliary) .
    3. Fig 1: Engine Wiring Harness Electrical Connectors
    GM2291248Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not damage the engine wiring harness electrical connectors (2).

  3. Unlock all the engine wiring harness electrical connector retainers (4) on the engine wiring harness electrical connectors (2).
  4. Unlock all the engine wiring harness electrical connectors (2) by lifting the engine wiring harness electrical connector levers (3).
  5. Disconnect the engine wiring harness electrical connectors (2) from the ECM (1).
    6. Fig 2: ECM Bracket Retainers
    GM2291247Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not damage the ECM bracket retainers (2).

  6. Apply suitable pressure to the ECM bracket retainers (2) and remove the ECM (3) from the ECM bracket (1).
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