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Home >> Nissan-Datsun >> 2014 >> Versa Note S Plus >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes & Symptom Tests) >> DTC/Circuit Diagnosis >> DTC U1040: Eng Comm Circuit >> DTC Logic >> 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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