Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0327 To P1145 >> DTC P0603: ECM Power Supply >> On Board Diagnosis Logic

On Board Diagnosis Logic

DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0603
0603		 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
scientia non olet · About Mike's Workshop Manuals