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Home >> Subaru >> 2018 >> Crosstrek Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Engine Control/Fuel 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.
  • For model without keyless access with push button start, refer to the Type B in "REGISTRATION MANUAL FOR IMMOBILIZER". For more details contact an authorized Subaru dealership.
  • For model with keyless access with push button start, refer to the Type D in "REGISTRATION MANUAL FOR IMMOBILIZER". For more details contact an authorized Subaru dealership.
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: 

    7.5N.m (0.8kgf-m, 5.5ft-lb) 

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

    Tightening torque: 

    7.5N.m (0.8kgf-m, 5.5ft-lb) 

    Fig 1: ECM Bracket Fasteners Tightening 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.
    G11252914Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .