LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2009 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Transmission >> Automatic Transmission -- Convertible >> DTC/Circuit Diagnosis >> DTC U1000: Can Comm Circuit >> DTC Logic >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC DETECTION CONDITION AND POSSIBLE CAUSES REFERENCE CHART

DTC Trouble diagnosis name DTC is detected if... Possible cause
U1000 CAN communication line TCM is not transmitting or receiving CAN communication signal for 2 seconds or more.
  • Harness or connectors (CAN communication line is open or shorted).
  • TCM