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Infiniti
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2013
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M37 Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Control System (Diagnostic Codes & Symptom Tests)
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DTC/Circuit Diagnosis
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DTC U1001: Can Comm Circuit
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DTC Logic
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DTC Detection Logic
DTC Detection Logic
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U1001
CAN communication line
When ECM is not transmitting or receiving CAN communication signal other than OBD (emission related diagnosis) for 2 seconds or more.
Harness or connectors (CAN communication line is open or shorted)