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Home >> Infiniti >> 2013 >> M35h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes & Symptom Tests) >> DTC/Circuit Diagnosis >> DTC U1003: Can Comm Circuit >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
U1003 CAN COMM CIRCUIT (CAN communication line)
  • When ECM is not transmitting or receiving CAN communication signal.
  • Harness or connectors (CAN communication line is open or shorted)
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