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Home >> Subaru >> 2017 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Engine Control Module (ECM) >> Installation
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Engine Control Module (ECM): Installation

CAUTION: When the ECM of model with immobilizer has been replaced, be sure to perform the registration of immobilizer system. (Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER".)
NOTE: When replacing the ECM, be careful not to use the ECM of wrong specification to avoid any damage on the fuel injection system.
  1. Install the ECM bracket.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

  2. Temporarily install the ECM to the vehicle, tighten the fasteners in numerical order as shown in the figure.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    Fig 1: ECM Bolts Installation Sequence
    G11252913Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the connector in numerical order as shown in the figure.
    CAUTION: To prevent damage to the connector, when connecting the connector, insert the connector straight in until it stops, and while maintaining the position, lock the lever.
    Fig 2: Identifying ECM Connectors
    G11252914Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .