Engine Control Module (ECM): Installation

CAUTION: When replacing the ECM, be sure to perform VIN registration, module registration and immobilizer registration after the service.

NOTE: When replacing the ECM, be careful not to use the ECM of wrong specification to avoid any damage on the fuel injection system.

Install the ECM bracket.
Tightening torque:

7.5 N.m (0.8 kgf-m, 5.5 ft-lb)
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 Bracket Fasteners Tightening Sequence
Courtesy of SUBARU OF AMERICA, INC.
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.

NOTE: Check that the lever is located at the position shown in the figure (position beyond the lock portion (a)).

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.
Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
When the ECM is replaced
1. Perform [Entry VIN]. Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>WORK SUPPORT>OPERATION .
2. Perform [Module registration]. Ref. to COMMON (DIAGNOSTICS)>UNIT REGISTRATION>OPERATION .
3. Perform the registration of immobilizer.
  - For model without keyless access with push button start (except for C5 model), refer to the Type G in "REGISTRATION MANUAL FOR IMMOBILIZER".
  - For model without keyless access with push button start (C5 model), refer to the Type I in "REGISTRATION MANUAL FOR IMMOBILIZER".
  - For model with keyless access with push button start, refer to the Type H in "REGISTRATION MANUAL FOR IMMOBILIZER".