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Home >> Kia >> 2011 >> Optima SX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.0L >> Engine Control Module (ECM) >> Repair Procedures >> Removal
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Repair Procedures: Removal

NOTE: In the case of the vehicle equipped with immobilizer or button engine start system, perform "Key Teaching" procedure together. Refer to TEACHING PROCEDURES .
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the ECM Connector (A).
    Fig 1: ECM Connector
    G07379704Courtesy of KIA MOTORS AMERICA, INC.
  3. Remove the air cleaner assembly. Refer to INTAKE AND EXHAUST SYSTEM .
  4. Remove the mounting bolts (A) and nut (B), and then remove the ECM assembly (C).
    Fig 2: ECM Assembly Mounting Bolts & Nut
    G07379705Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the installation nuts (A) and screw (B), and then remove the ECM (C) from the bracket.
Fig 3: ECM With Installation Nuts & Screw
G07379706Courtesy of KIA MOTORS AMERICA, INC.
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