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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 90 (Immobilizer System Diagnosis (HEV)) >> DTC P1690: Immobilizer-Smartra No Response >> W/Harness Inspection >> Power Circuit Inspection

Power Circuit Inspection

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  1. Check for open in harness.
  1. Ignition "OFF".
  2. Disconnect SMARTRA Connector.
  3. Ignition "ON" & Engine "OFF".
  4. Measure voltage between Engine Control Relay Power of SMARTRA harness connector and chassis ground.

    Specification:  9 ~ 16V

    Fig 1: I/P Junction Box Circuit Diagram
    G10602966Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Door Warning Switch Terminals
    G10602967Courtesy of HYUNDAI MOTOR AMERICA
  5. Is the measured voltage within specifications?

    YES 

    NO