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Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 159 (Security Control System) >> DTC/Circuit Diagnosis >> DTC U1000: Can Comm Circuit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

WARNING: This page is about a different car, the 2013 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
DTC CONSULT display description DTC Detection Condition Possible cause
U1000 CAN COMM CIRCUIT When BCM cannot communicate CAN communication signal continuously for 2 seconds or more. In CAN communication system, any item (or items) of the following listed below is malfunctioning.
  • Receiving (TCM)
  • Receiving (IPDM E/R)
  • Receiving (ECM)
  • Receiving (METER/M&A)