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DTC Detection Logic

WARNING: This page is about a different car, the 2011 Suzuki Equator. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTING CONDITION CHART

DTC SDT display description DTC Detection Condition Possible cause
U1000 CAN COMM CIRCUIT When BCM cannot communicate CAN communication signal continuously for 2 seconds or more. Any item (or items) of the following listed below is malfunctioning in CAN communication system.
  • Transmission
  • Receiving (ECM)
  • Receiving (METER/M&A)
  • Receiving (TCM)
  • Receiving (IPDM E/R)