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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis - 5.0L (7 Of 9) >> DTC P0685-00: ECM/PCM Power Relay Control Circuit/Open >> Wiring Inspection >> Control Relay Power Circuit Inspection

Control Relay Power Circuit Inspection

  1. Ignition switch OFF and disconnect main relay (Metal core block) and ECM connector.
  2. Measure the resistance between control relay power terminal of main relay (Metal core block) harness connector and main relay control relay power terminal of ECM harness connector.

    Specification:  Approx. below 1Ω

  3. Is the measured resistance within specification?

    YES 

    NO