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Home >> Nissan-Datsun >> 2019 >> Versa Note SV >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 3) >> DTC/Circuit Diagnosis >> DTC U1044:Eng Comm Circuit >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

U1044

ENG COMM CIRCUIT

(Engine communication circuit)

A signal voltage pf LIN communication between ECM and active grille shutter is excessively low or excessively high.
  • Harness and connectors

    (Engine communication line is open or shorted.)

  • Active grille shutter
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