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Home >> Infiniti >> 2015 >> Q60 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Trouble Codes (DTCS) P0447-P2123) (Convertible) >> DTC/Circuit Diagnosis >> DTC P0603: ECM Power Supply >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0603 ECM power supply circuit ECM back up RAM system does not function properly.
  • Harness or connectors

    [ECM power supply (back up) circuit is open or shorted.]

  • ECM
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