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Home >> Nissan-Datsun >> 2019 >> Versa Note S >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 3) >> DTC/Circuit Diagnosis >> DTC U1040:Eng Comm Circuit >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC No.

Trouble diagnosis content

DTC detecting condition

Possible cause

U1040

Engine communication line

When ECM unable to transmit engine communication signal
  • Harness and connectors

    (Engine communication line is open or shorted.)

  • ECM
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