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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 >> Installation Procedure
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Installation Procedure

    Fig 1: ECM Bracket Retainers
    GM2291247Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • Do not damage the ECM bracket retainers (2).
    • Listen for an audible click to confirm correct installation of the ECM bracket retainers (2).
  1. Install the ECM (3) to the ECM bracket (1).
  2. Fig 2: Engine Wiring Harness Electrical Connectors
    GM2291248Courtesy of GENERAL MOTORS COMPANY
    NOTE:

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

  3. Connect the engine wiring harness electrical connectors (2) to the ECM (1).
  4. Lock all the engine wiring harness electrical connectors (2) to the ECM (1) by lowering the engine wiring harness electrical connector levers (3).
  5. NOTE:

    Listen for an audible click to confirm correct installation of engine wiring harness electrical connector retainers (4).

  6. Lock all the engine wiring harness electrical connector retainers (4) on the engine wiring harness electrical connectors (2).
  7. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) , Battery Negative Cable Disconnection and Connection (Auxiliary) .
  8. NOTE:

    Update the service data of the NEW ECM with the recorded data if necessary.

  9. Program the ECM. Refer to Engine Control Module Programming and Setup .
  10. If an ECM programming error is encountered such as "Starting Disabled, Remove Key" on the driver information centre, with a diagnostic test code (DTC) P1631, perform the "10-Minute relearn procedure" found in programming theft deterrent control module programming and setup. Refer to Theft Deterrent Module Programming and Setup .
  11. Turn OFF the ignition for at least 5 seconds after the ECM programming is complete.
  12. Use the scan tool to clear all DTCs.