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Home >> Subaru >> 2012 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H4DO) (Except WRX-STI) >> Engine Control Module (ECM) >> Removal
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Engine Control Module (ECM): Removal

  1. Disconnect the ground cable from battery.
    Fig 1: Connecting/Disconnecting Battery Ground Cable
    G08317298Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the back panel - pocket. Refer to REMOVAL , Glove Box.
  3. Disconnect the connector from ECM.
    Fig 2: Locating ECM Connector Terminals
    G08315463Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the harness clip, and push the tabs to remove the relay block.
    Fig 3: Locating Relay Block Tabs And Harness Clip
    G08315464Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the bolts and nuts, and remove the ECM.
    Fig 4: Locating ECM Mounting Bolts And Nuts
    G08315465Courtesy of SUBARU OF AMERICA, INC.