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Home >> Suzuki >> 2012 >> Equator Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine General Information & Diagnosis - Qr25DE (2 Of 5) >> DTC U0101: CAN COMM Circuit >> On Board Diagnosis Logic
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On Board Diagnosis Logic

This self-diagnosis has the one trip detection logic. 

DTC DETECTING CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
U0101
0101
Lost communication with TCM When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) with TCM for 2 seconds or more.
  • CAN communication line between TCM and ECM
  • CAN communication line open or shorted