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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 95 (Engine Control System Diagnosis - 1.6L (1 Of 3) - Optima (Except HEV)) >> DTC P0203: Injector Circuit/Open-Cylinder 3 >> Wiring Inspection >> Terminal and Connector Inspection

Terminal and Connector Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Many malfunctions in the electrical system are caused by poor harness and terminals.

    Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

  2. Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
  3. Has a problem been found?
    Fig 1: ECM Circuit Diagram
    G11833438Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: ECM Connector Terminals
    G11833439Courtesy of KIA MOTORS AMERICA, INC.

    YES 

    NO