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Home › Volvo › 2003 › S40 › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control Module (ECM) - Removal & Installation (644 Body) › Engine Electrical › Engine control module (ECM), replacing (FENIX 5.1) › Reinstall:

Engine control module (ECM), replacing (FENIX 5.1): Reinstall:

Reinstall bracket and press together.
Install a new security screw.
Tighten the security screw until the screw head breaks off.