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Home >> Nissan-Datsun >> 2006 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0138 To P0445 >> DTC P0403 EGR Volume Control Valve >> On Board Diagnosis Logic

On Board Diagnosis Logic

This self-diagnosis has the one trip detection logic  .

DTC DETECTING CONDITION & POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0403 0403 EGR volume control valve circuit An improper voltage signal is sent to ECM through the valve
  • Harness or connectors

    (The EGR volume control valve circuit is open or shorted.)

  • EGR volume control valve