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Home >> Nissan-Datsun >> 2006 >> Maxima SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2A03 >> DTC P1402 EGR Function >> On Board Diagnosis Logic

On Board Diagnosis Logic

If the EGR temperature sensor detects EGR flow under the condition that does not call for EGR, a high-flow malfunction is diagnosed.

DTC DETECTING CONDITION & POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1402 1402 EGR function (Open) EGR flow is detected under the condition that does not call for EGR.
  • Harness or connectors

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

  • EGR volume control valve leaking or stuck open
  • EGR temperature sensor