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Engine Control Module

NOTE: Engine Control Module (ECM), can also be referred to as Powertrain Control Module (PCM). For ECM location. See Figure-Figure .
NOTE: For ECM removal and installation, see ENGINE CONTROL MODULE under COMPUTERIZED ENGINE CONTROLS in REMOVAL, OVERHAUL & INSTALLATION article.
  1. Using a Digital Volt-ohmmeter (DVOM), check for ignition power, battery power, and ground at terminals listed in table by application. Turn ignition on. Check for ignition voltage at ECM power terminals. Turn ignition off. Check for battery voltage between ECM power and ground terminals. For ECM connectors and terminals identification. See Fig 1-Fig 7 and for ECM ignition power, battery power and ground terminals, see ECM POWER & GROUND TERMINALS  table.
    ECM POWER & GROUND TERMINALS

    Model (1) Terminals No.
    Optima & Magentis (Canadian) 2.4L (A/T)
    Battery Power B26
    Ignition Power B1, B7, C7, C19, C28
    Ground B2, B8, C6, C18, C27
    Optima & Magentis (Canadian) 2.4L (M/T)
    Battery Power D10
    Ignition Power A12, A25, D12
    Ground A13, A26, D21
    Optima & Magentis (Canadian) 2.7L
    Battery Power V7
    Ignition Power V1, V8, V9
    Ground V4, V5, V6, Z5
    Rio
    Battery Power (B01) 7
    Ignition Power (B01) 1, 8, 9
    Ground (B01) 4, 5, 6
    Sedona
    Battery Power B18
    Ignition Power B4, B6, B17, C1, C8, C20
    Ground B5, B16, C2, C9, C21
    Spectra
    Battery Power 12
    Ignition Power 13, 45
    Ground 3, 51, 61, 74, 78, 80
    Sportage (A/T)
    Battery Power 26
    Ignition Power 54, 58, 86
    Ground 6, 28, 34, 55, 72
    Sportage (M/T)
    Battery Power 26
    Ignition Power 54, 58
    Ground 6, 28, 34, 55, 86
    (1) For circuit identification, see WIRING DIAGRAMS article. For connector views, see Fig 1-Fig 7 .
  2. If battery voltage is not present, check appropriate fuses. Check ECM B+ fuses, FUEL INJ fuses and IGN COILS fuses in engine or passenger compartment fuse/relay boxes. Replace fuse(s) as necessary and check for cause of blown fuse. If fuses are okay, check EGI main relay. See RELAYS & SOLENOIDS  under RELAYS & SOLENOIDS. If relay is okay, locate and repair power open between main relay and ECM connector or ground open between body and ECM connector.
Fig 1: Identifying Engine Control Module Connectors & Terminals (Optima & Magentis (Canadian) 2.4L A/T)
G00038155Courtesy of KIA MOTORS AMERICA, INC.
Fig 2: Identifying Engine Control Module Connectors & Terminals (Optima & Magentis (Canadian) 2.4L M/T)
G00038156Courtesy of KIA MOTORS AMERICA, INC.
Fig 3: Identifying Engine Control Module Connectors & Terminals (Optima & Magentis (Canadian) 2.7L)
G00102664Courtesy of KIA MOTORS AMERICA, INC.
Fig 4: Identifying Engine Control Module Connectors & Terminals (Rio 1.5L)
G00038152Courtesy of KIA MOTORS AMERICA, INC.
Fig 5: Identifying Engine Control Module Connector & Terminals (Sedona 3.5L)
G00082428Courtesy of KIA MOTORS AMERICA, INC.
Fig 6: Identifying Engine Control Module Connector & Terminals (Spectra 1.8L)
G00082429Courtesy of KIA MOTORS AMERICA, INC.
Fig 7: Identifying Engine Control Module Connector & Terminals (Sportage 2.0L)
G99I08397Courtesy of KIA MOTORS AMERICA, INC.
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