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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Automatic Transmission) >> DTC/Circuit Diagnosis >> DTC U1000: Can Comm Circuit >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
DTC Trouble diagnosis name DTC is detected if... Possible cause
U1000 CAN Communication Line TCM cannot transmit or receive CAN communication signals continuously for 2 seconds or more when the ignition switch is ON.
  • Harness or connectors (CAN communication line is open or shorted.)
  • TCM
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