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Home >> Chevrolet >> 2005 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 1211 (Engine Controls/Fuel - 3.6L - Repair Instructions) >> Repair Instructions >> Engine Control Module Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying ECM Wiring Harness Connectors
    GM1838648Courtesy of GENERAL MOTORS COMPANY
  1. Connect the engine wiring harness electrical connectors (1) to the ECM.
  2. Connect the body wiring harness electrical connector (2) to the ECM.
    3. Fig 2: View Of ECM At Battery Tray
    GM1838645Courtesy of GENERAL MOTORS COMPANY
  3. Position the ECM above the retainer in the battery tray and slide the ECM down into the retainer.
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LE5, LE9, LY7) .
  5. Reset the clock and preset radio stations.
  6. If a NEW ECM was installed, the ECM must be programmed. Refer to Control Module References .
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