Engine Control Module: Service and Repair

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More supporting gear

Torque wrench

Use the factory procedure with the right tightening tool.

Manual-based work becomes much easier when you can torque correctly.

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Trim tool set

Useful for clips, covers, and trim pieces called out by the manual.

Most manual procedures assume you have a good trim removal kit.

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Multimeter kit

Great for electrical troubleshooting and manual-tested circuits.

Electrical work in manuals often needs a meter more than another wrench.

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Engine Control Module (ECM)

REMOVAL

1. Disconnect the ground cable from battery.






2. Remove the lower inner trim of passenger's side.
3. Turn over the floor mat of passenger's seat.
4. Remove the protect cover.






5. Remove the bolts and nuts which hold the ECM to the bracket.






6. Disconnect the ECM connectors, and take out the ECM.

INSTALLATION

Install in the reverse order of removal.

CAUTION:
- When the ECM of model with immobilizer has been replaced, be sure to perform the registration of immobilizer system. (Refer to "PC application help for Subaru Select Monitor").
- When replacing the ECM or the bracket, replace both parts with the new ones.
- After attaching the bracket to the ECM, do not detach the bracket.
- If the bracket is attached to the ECM in the wrong direction, replace both parts with the new ones.

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

Tightening torque: 7.5 N.m (0.8 kgf.m, 5.5 ft.lb)
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